In the beginning ...:- A generation refers to the state of improvement in the development of a product. This term is also used in the different advancements of computer technology. With each new generation, the circuitry has gotten smaller and more advanced than the previous generation before it. As a result of the miniaturization, speed, power, and memory of computers have proportionally increased. New discoveries are constantly being developed that affect the way we live, work and play.
The First Generation: (The Vacuum Tube Years) :- The first generation computers were huge, slow, expensive, and often undependable. In 1946 two Americans, Presper Eckert, and John Mauchly built the ENIAC electronic computer which used vacuum tubes instead of the mechanical switches of the Mark I. The ENIAC used thousands of vacuum tubes, which took up a lot of space and gave off a great deal of heat just like light bulbs do. The ENIAC led to other vacuum tube type computers like the EDVAC (Electronic Discrete Variable Automatic Computer) and the UNIVAC I (Universal Automatic Computer). The vacuum tube was an extremely important step in the advancement of computers. Vacuum tubes were invented the same time the light bulb was invented by Thomas Edison and worked very similar to light bulbs. It's purpose was to act like an amplifier and a switch. Without any moving parts, vacuum tubes could take very weak signals and make the signal stronger (amplify it). Vacuum tubes could also stop and start the flow of electricity instantly (switch). These two properties made the ENIAC computer possible. the ENIAC gave off so much heat that they had to be cooled by gigantic air conditioners. However even with these huge coolers, vacuum tubes still overheated regularly. It was time for something new.
Input: - Punched Card , Output:- Paper, Storage:- Magnetic Tape
Example:- UNIVAC-1, IBM-650, 702, 705, BURROUGS-220, EDVAC, EDSAC, MARK-II, UNIVAC-II ETC
The Second Generation: (The Era of the Transistor) :- The transistor computer did not last as long as the vacuum tube computer lasted, but it was no less important in the advancement of computer technology. In 1947 three scientists, John Bardeen, William Shockley, and Walter Brattain working at AT&T's Bell Labs invented what would replace the vacuum tube forever. This invention was the transistor which functions like a vacuum tube in that it can be used to relay and switch electronic signals.
There were obvious differences between the transistor and the vacuum tube. The transistor was faster, more reliable, smaller, and much cheaper to build than a vacuum tube. One transistor replaced the equivalent of 40 vacuum tubes. These transistors were made of solid material, some of which is silicon, an abundant element (second only to oxygen) found in beach sand and glass. Therefore they were very cheap to produce. Transistors were found to conduct electricity faster and better than vacuum tubes. They were also much smaller and gave off virtually no heat compared to vacuum tubes. Their use marked a new beginning for the computer. Without this invention, space travel in the 1960's would not have been possible. However, a new invention would even further advance our ability to use computers.
Input/Output:- Paper/Magnetic Core Storage
Example:- IBM-1400, 7000, CONTROL DATA-3600, GENERAL ELECTRIC-635, HONEYWELL-220, SS-80, NCR-300, CDC 1604, 160A ETC
The Third Generation: (Integrated Circuits(IC), LSI - Miniaturizing the Computer) :- Transistors were a tremendous breakthrough in advancing the computer. However no one could predict that thousands even now millions of transistors (circuits) could be compacted in such a small space. The integrated circuit, or as it is sometimes referred to as semiconductor chip, packs a huge number of transistors onto a single wafer of silicon. Robert Noyce of Fairchild Corporation and Jack Kilby of Texas Instruments independently discovered the amazing attributes of integrated circuits. Placing such large numbers of transistors on a single chip vastly increased the power of a single computer and lowered its cost considerably. Since the invention of integrated circuits, the number of transistors that can be placed on a single chip has doubled every two years, shrinking both the size and cost of computers even further and further enhancing its power. Most electronic devices today use some form of integrated circuits placed on printed circuit boards-- thin pieces of bakelite or fiberglass that have electrical connections etched onto them -- sometimes called a mother board. These third generation computers could carry out instructions in billionths of a second. The size of these machines dropped to the size of small file cabinets. Yet, the single biggest advancement in the computer era was yet to be discovered.
Input:- Punched Card, Keyboard Output:- Paper, Monitor Storage:- Magnetic Disks, Magnetic Tapes
Example:- IBM SYSTEM/360, UNVAC 1108, 9000 SERIES
The Fourth Generation: 1971-Today (The Microprocessor OR VLSI) :- This generation can be characterized by both the jump to monolithic integrated circuits(millions of transistors put onto one integrated circuit chip) and the invention of the microprocessor (a single chip that could do all the processing of a full-scale computer). By putting millions of transistors onto one single chip more calculation and faster speeds could be reached by computers. Because electricity travels about a foot in a billionth of a second, the smaller the distance the greater the speed of computers. However what really triggered the tremendous growth of computers and its significant impact on our lives is the invention of the microprocessor. Ted Hoff, employed by Intel (Robert Noyce's new company) invented a chip the size of a pencil eraser that could do all the computing and logic work of a computer. The microprocessor was made to be used in calculators, not computers. It led, however, to the invention of personal computers, or microcomputers. It wasn't until the 1970's that people began buying computer for personal use. One of the earliest personal computers was the Altair 8800 computer kit. In 1975 you could purchase this kit and put it together to make your own personal computer. In 1977 the Apple II was sold to the public and in 1981 IBM entered the PC (personal computer) market. Today we have all heard of Intel and its Pentium® Processors and now we know how it all got started. The computers of the next generation will have millions upon millions of transistors on one chip and will perform over a billion calculations in a single second. There is no end in sight for the computer movement.
Input:- Mouse, Keyboard, Scanner, Digitizers Output:- Paper, Monitor, Plotter, Printer
Storage:- Magnetic Disks, Optical Disk, DVD, Blue-Ray Disk
Example:- IBM SYSTEM/370, HP 3000, AMD Athelon, Pentium
Set - 1
1. UNIVAC is
a. Universal Automatic Computer b. Universal Array Computer
c. Unique Automatic Computer d. Unvalued Automatic Computer
Correct Answer: a. Universal Automatic Computer
Explanation: There are no computers with the name as in other options. UNIVAC was the first general purpose electronic digital computer designed for commercial use, produced by Universal Accounting Company of John Mauchly and J.P.Eckert in 1951.
2. CD-ROM stands for
a. Compactable Read Only Memory b. Compact Data Read Only Memory
c. Compactable Disk Read Only Memory d. Compact Disk Read Only Memory
Correct Answer: d. Compact Disk Read Only Memory
Explanation: There are no objects with the name as in other options. CD-ROM is a non-volatile optical data storage medium using the same physical format as audio compact disk, readable by a computer with a CD-ROM drive. The standard 12 cm diameter CD-ROM store about 660 megabytes.
3. ALU is
a. Arithmetic Logic Unit b. Array Logic Unit c. Application Logic Unit d. None of above
Correct Answer: a. Arithmetic Logic Unit
Explanation: ALU is a unit in Central Processing Unit in a computer system that is responsible for arithmetic calculations and logical operations. Apart from ALU, the CPU contains MU (Memory Unit) and CU (Control Unit).
4. VGA is
a. Video Graphics Array b. Visual Graphics Array
c. Volatile Graphics Array d. Video Graphics Adapter
Correct Answer: a. Video Graphics Array
Explanation: VGA is a type of Graphics Adapter. Graphic Adapter is an electronic board that controls the display of a monitor. This device helps the motherboard to work with the monitor and in VGA and SVGA the last letter ‘A’ stands for ‘Array’ whereas in MDA, CGA, MCGA the last letter ‘A’ stands for ‘Adapter’.
5. IBM 1401 is
a. First Generation Computer b. Second Generation Computer
c. Third Generation Computer d. Fourth Generation Computer
Correct Answer: b. Second Generation Computer
Explanation: IBM 1401 is a Second Generation Computer and is the first computer to enter
6. MSI stands for
a. Medium Scale Integrated Circuits b. Medium System Integrated Circuits
c. Medium Scale Intelligent Circuit d. Medium System Intelligent Circuit
Correct Answer: a. Medium Scale Integrated Circuits
Explanation: After the invention of IC chips the development of computers plunged into next phase. Small Scale Integration and Medium Scale Integration (SSI and MSI) were used in third generation of computers and Large Scale Integration and Very Large Scale Integration (LSI and VLSI) are being used in fourth generation of computers. People are now expecting ULSI (Ultra Large Scale Integration) Circuits to be used for fifth generation computers.
7. The capacity of 3.5 inch floppy disk is
a. 1.40 MB b. 1.44 GB c. 1.40 GB d. 1.44 MB
Correct Answer: d. 1.44 MB
Explanation: Microfloppy disks (3.5 inch) if it is high density (MF2HD) can store 1.44 MB and if it is low density (MF2DD), it can store 720 KB. Mini Floppy disks (5.25 inch) if it is high density (MD2HD) can store 1.2 MB and low density (MD2DD) stores 360 KB of data.
8. The first computer introduced in
a. IBM 1400 b. IBM 1401 c. IBM 1402 d. IBM1402
Correct Answer: b. IBM 1401
Explanation: IBM 1401, a second generation computer was brought in
9. WAN stands for
a. Wap Area Network b. Wide Area Network c. Wide Array Net d. Wireless Area Network
Correct Answer: b. Wide Area Network
Explanation: There are three different classes of computer network namely, Local Area Network (LAN) that covers a small geographical area such as a room, a building or a compound; Metropolitan Area Network (MAN) that has a citywide coverage; and Wide Area Network (WAN) that covers the whole globe or beyond the globe.
10. MICR stands for
a. Magnetic Ink Character Reader b. Magnetic Ink Code Reader
c. Magnetic Ink Cases Reader d. None
Correct Answer: a. Magnetic Ink Character Reader
Explanation: MICR (Magnetic Ink Character Reader) is kind of scanner that can scan and identify the writing of magnetic ink. This device is used in banks to verify signatures in Checks.
Set - 2
1. EBCDIC stands for
a. Extended Binary Coded Decimal Interchange Code
b. Extended Bit Code Decimal Interchange Code
c. Extended Bit Case Decimal Interchange Code
d. Extended Binary Case Decimal Interchange Code
Correct Answer: a. Extended Binary Coded Decimal Interchange Code
Explanation: EBCDIC is an 8-bit binary code for larger IBMs primarily mainframes in which each byte represent one alphanumeric character or two decimal digits. 256 characters can be coded using EBCDIC.
2. BCD is
a. Binary Coded Decimal b. Bit Coded Decimal c. Binary Coded Digit d. Bit Coded Digit
Correct Answer: a. Binary Coded Decimal
Explanation: BCD is a binary coded notation in which each of the decimal digits is expressed as a 8-bit binary numeral. For example in binary coded decimal notation 12 is 0001 0010 as opposed to 1100 in pure binary.
3. ASCII stands for
a. American Stable Code for International Interchange
b. American Standard Case for Institutional Interchange
c. American Standard Code for Information Interchange
d. American Standard Code for Interchange Information
Correct Answer: c. American Standard Code for Information Interchange
Explanation: ASCII is a code which converts characters – letters, digits, punctuations and control characters such as Alt, Tab etc – into numeral form. ASCII code is used to represent data internally in micro-computers. ASCII codes are 7 bits and can represent 0 to 127 and extended ASCII are 8 bits that represents 0 to 255.
4. Which of the following is first generation of computer
a. EDSAC b. IBM-1401 c. CDC-1604 d. ICL-2900
Correct Answer: a. EDSAC
Explanation: IBM-1401, CDC-1604 is second generation computer. ICL-2900 is a fourth generation computer. EDSAC is important in the development of computer since it was the first computer to use John von. Neumann’s Stored Program Concept. It used 3000 vacuum tubes and computers with vacuum tubes are of first generation computers.
5. Chief component of first generation computer was
a. Transistors b. Vacuum Tubes and Valves c. Integrated Circuits d. None of above
Correct Answer: b. Vacuum Tubes and Valves
Explanation: Transistors were used for second generation computers and integrated circuits in third generation. First generation computers used vacuum tubes and valves as their main electronic component. Vacuum Tubes were invented by Lee DeForest in 1908.
6. FORTRAN is
a. File Translation b. Format Translation c. Formula Translation d. Floppy Translation
Correct Answer: c. Formula Translation
Explanation: FORTRAN (Formula Translation) is one of the earlier High Level programming languages used to write scientific applications. It was developed by IBM in 1956.
7. EEPROM stand for
a. Electrically Erasable Programmable Read Only Memory
b. Easily Erasable Programmable Read Only Memory
c. Electronic Erasable Programmable Read Only Memory d. None of the above
Correct Answer: a. Electrically Erasable Programmable Read Only Memory
Explanation: There are three types of ROM namely, PROM, EPROM and EEPROM. PROM can’t be reprogrammed, EPROM can be erased by exposing it in high intensity ultraviolet light and EEPROM can be erased and reprogrammed electrically. It is not needed to be removed from the computer to be modified.
8. Second Generation computers were developed during
a. 1949 to 1955 b. 1956 to 1965 c. 1965 to 1970 d. 1970 to 1990
Correct Answer: 1956 to 1965
Explanation: Second generation computers used transistors as their main electronic component. Transistor was invented by Bell Lab Scientists John Burdeen, Walter Brattain and William Shockley in 1947 and won the Nobel Prize in 1956 but it was not used in computers till 1956. The second generation continued until the implementation of IC chips invented by Jack Kilby in Texas Instruments in 1958.
9. The computer size was very large in
a. First Generation b. Second Generation c. Third Generation d. Fourth Generation
Correct Answer: a. First Generation
Explanation: It is obvious that computers developed with more power, reliability, speed and smaller sizes due to the enhancement of technology. First generation computers used 1000s of vacuum tubes that required lot of space made them gigantic in size. Single transistor could replace 1000 vacuum tubes and a single IC chip replaced 1000s of transistors made computers smaller and more speedy.
10. Microprocessors as switching devices are for which generation computers
a. First Generation b. Second Generation c. Third Generation d. Fourth Generation
Correct Answer: Fourth Generation
Explanation: Microprocessors further revolutionized the development of computers. Personal microcomputers were possible due to the microprocessors. The first microprocessor called Intel 4004 was developed by American Intel Corporation in 1971. Microprocessors are used in the computers of fourth generation computers.
Set - 3
1. Which generation of computer is still under development
a. Fourth Generation b. Fifth Generation c. Sixth Generation d. Seventh Generation
Correct Answer: b. Fifth Generation
Explanation: Today’s computer fall under the fourth generation computers that uses the LSI and VLSI Integrated Circuits. For fifth generation computers it is expected for Ultra Large Scale Integrated Circuits (ULSI). The study for using Gallium Arsenide instead of silicon chips is underway. Electrons can travel 5 times faster in Gallium Arsenide compared to the silicon. Similarly, genetically engineered protein molecules are being tried for processors. Fifth generation computers are expected to have artificial intelligence, ability to use natural language.
2. Artificial Intelligence is associated with which generation?
a. First Generation b. Second Generation c. Fifth Generation d. Sixth Generation
Correct Answer: c. Fifth Generation
Explanation: ‘A computer is a slave in a box’. This is a saying due to the lack of intelligence in computer in spite of their speed, accuracy, diligence and reliability. A computer can only perform instructed task in the way already programmed. Thus, scientists are trying to develop artificial intelligence in computers so that they can think and make decisions themselves. This is expected for fifth generation computers.
3. Which operation is not performed by computer
a. Inputting b. Processing c. Controlling d. Understanding
Correct Answer: d. Understanding
Explanation: Computers can’t understand since they don’t have intelligence. Let’s hope in fifth generation they will achieve artificial intelligence and be able to understand.
4. Fifth generation computer is also known as
a. Knowledge information processing system b. Very large scale integration (VLSI)
c. Both of above d. None of above
Correct Answer: a. Knowledge information processing system
Explanation: Fifth Generation computers will have artificial intelligence and will be able to understand making knowledge information processing system possible,
5. Central Processing Unit is combination of
a. Control and storage b. Control and output unit
c. Arithmetic logic and input unit d. Arithmetic logic and control unit
Correct Answer: d. Arithmetic logic and control unit
Explanation: Arithmetic logic and control unit along with memory unit forms a complete central processing unit and central processing unit along with input/output unit forms a computer system.
6. The brain of any computer system is
a. Control Unit b. Arithmetic Logic Unit c. Central Processing Unit d. Storage Unit
Correct Answer: c. Central Processing Unit
Explanation: Control unit or arithmetic logical unit alone can not represent the function of brain to compare with neither does storage unit only. Central Processing Unit is the combination of control, arithmetic logic and memory units thus can be compared with brain that controls the body, processes its functions and remembers.
7. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.
a. Arithmetic and Logic Unit b. Control Unit c. Both of above d. None of above
Correct Answer: a. Arithmetic and Logic Unit
Explanation: Logical sub-unit of ALU performs all the comparisons such as less than equal to or greater than. Arithmetic sub-unit of ALU performs calculations such as addition, subtraction and so on.
8. Analog computer works on the supply of
a. Continuous electrical pulses b. Electrical pulses but not continuous
c. Magnetic strength d. None of the above
Correct Answer: a. Continuous electrical pulses
Explanation: Analog computers works on the continuous electrical pulses and digital computers work on the discrete electrical pulses. Analog computers need to process physical quantities such as temperature, pressure, speed etc.
9. Digital devices are
a. Digital Clock b. Automobile speed meter c. Clock with a dial and two hands d. All of them
Correct Answer: a. Digital Clock.
Explanation: Automobile speed meter and clock with a dial and two hands are analog devices. Speed meter works on speed of wheel and the later works on tension of dialed spring.
10. The computer that process both analog and digital is called
a. Analog computer b. Digital computer c. Hybrid computer d. Mainframe computer
Correct Answer c. Hybrid Computer
Explanation: Analog, Digital and Hybrid are the three classes of computers based on the work or principle on which computer work. Hybrid computers can perform both the tasks of analog computers as well as hybrid computers. These computers are used in aircraft, hospitals where measuring physical quantities and converting them into digital data to analyze is required.
Set - 4
1. Which statement is valid about magnetic tape?
a. It is a plastic ribbon b. It is coated on both sides with iron oxide
c. It can be erased and reused d. All of above
2. The data recording format in most of the modern magnetic tape is
a. 7-bit ASCII b. 7-bit EBCDIC c. 8-bit ASCII d. 8-bit EBCDIC
3. Which of the following is associated with error detector?
a. Odd parity bit b. Even parity bit c. Both of the above d. None of above
4. Tape speed is measured in
a. Feet per second b. Inch per second c. Meter per second d. Centimeter per second
5. Magnetic disks are the most popular medium for
a. Direct access b. Sequential access c. Both of above d. None of above
6. Storage capacity of magnetic disk depends on
a. tracks per inch of surface b. bits per inch of tracks c. disk pack in disk surface d. All of above
7. Reading data is performed in magnetic disk by
a. Read/write leads b. Sectors c. Track d. Lower surface
8. Access time is
a. seek time + latency time b. seek time c. seek time – latency time d. latency time
9. Seek time is
a. time to position the head over proper track b. time to position the head over proper sector
c. time to position the head over proper cylinder d. none of above
10. Latency time is
a. Time to spin the needed data under head b. Time to spin the needed data under track
c. Time to spin data under sector d. All of above
11. Floppy disks are available in
a. Single side single density b. Single side double density c. Both of above d. None of above
12. Floppy disks typically in diameter
a. 3” b. 5.25” c. 8” d. All of above
13. Hard disk is coated in both sides above
a. Magnetic metallic oxide b. Optical metallic oxide c. Carbon layer d. All of the above
14. Binary circuit elements have
a. One stable state b. Two stable state c. Three stable state d. None of above
15. Which statement is valid?
a. 1KB = 1024 bytes b. 1 MB=2048 bytes c. 1 MB = 1000 kilobytes d. 1 KB = 1000 bytes
16. Which statement is valid about computer program?
a. It is understood by a computer b. It is understood by programmer
c. It is understood user d. All of above
17. Software in computer
a. Enhances the capabilities of the hardware machine b. Increase the speed of central processing unit
c. Both of above d. None of above
18. Which of the following is not computer language?
a. High level language b. Medium level language
c. Low level language d. All of the above
19. Which language is directly understood by the computer without translation program?
a. Machine language b. Assembly language c. High level language d. None of above
20. Instruction in computer languages consists of
a. OPCODE b. OPERAND c. Both of above d. None of above
21. Machine language is
a. Machine dependent b. Difficult to program c. Error prone d. All of above
Set - 5
1. Mnemonic a memory trick is used in which of the following language?
a. Machine language b. Assembly language c. High level language d. None of above
2. The translator program used in assembly language is called
a. Compiler b. Interpreter c. Assembler d. Translator
3. Easily reloctable language is
a. Machine language b. Assembly language c. High level language d. Medium level language
4. Which of the following is called low level languages?
a. Machine language b. Assembly language c. Both of the above d. None of above
5. which of the following is problem oriented language?
a. High level language b. Machine language c. Assembly language d. Low level language
6. A compiler is a translating program which
a. Translates instruction of a high level language into machine language
b. Translates entire source program into machine language program
c. It is not involved in program’s execution d. All of above
7. Which of the following is machine independence program?
a. High level language b. Low level language c. Assembly language d. Machine language
8. Which statement is valid about interpreter?
a. It translates one instruction at a time b. Object code is saved for future use
c. Repeated interpretation is not necessary d. All of above
9. Which is the limitation of high level language?
a. Lower efficiency b. Machine dependence c. machine level coding d. None of above
10. High level language is also called
a. Problem oriented language b. Business oriented language
c. mathematically oriented language d. All of the above
11. A computer programmer
a. Does all the thinking for a computer b. Can enter input data quickly
c. Can operate all types of computer equipments d. Can draw only flowchart
12. CD-ROM is a
a. Semiconductor memory b. Memory register c. Magnetic memory d. None of above
13. Which of the following is not a primary storage device?
a. Magnetic tape b. Magnetic disk c. Optical disk d. None of above
14. A name or number used to identify a storage location devices?
a. A byte b. A record c. An address d. All of above
15. Which of the following is a secondary memory device?
a. Keyboard b. Disk c. ALU d. All of the above
16. The difference between memory and storage is that memory is … and storage is …
a. Temporary, permanent b. Permanent, temporary c. Slow, fast d. All of above
17. A floppy disk contains
a. Circular tracks only b. Sectors only c. Both circular tracks and sectors d. All of the above
18. The octal equivalent of 111010 is
a. 81 b. 72 c. 71 d. None of above
19. The first electronic computer in the world was
a. UNIVAC b. EDVAC c. ENIAC d. All of above
20. The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is called
a. ASCII b. EBCDIC c. BCD d. All of above
Set - 6
1. Which was the computer conceived by Babbage?
a. Analytical Engine b. Arithmetic Machine c. Donald Kunth d. All of above
2. Offline device is
a. A device which is not connected to CPU b. A device which is connected to CPU
c. A direct access storage device d. An I/O device
3. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
a. Memory address registers b. Memory data registers c. Instruction register d. Program counter
4. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
a. Memory address register b. Memory data register c. Instruction register d. Program counter
5. Microprocessors can be used to make
a. Computers b. Digital systems c. Calculators d. All of above
6. how many address lines are needed to address each machine location in a 2048 x 4 memory chip?
a. 10 b. 11 c. 8 d. 12
7. which American computer company is called Big Blue?
a. Microsoft b. Compaq Corp c. IBM d. Tandy Svenson
8. When did IBM introduce the 20286 based PC/AT?
a. 1982 b. 1984 c. 1985 d. 1989
9. When was the X window system born?
a. 1984 b. 1989 c. 1988 d. 1990
10. Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?
a. Tabulator Machine Co. b. Computer Tabulating Recording Co.
c. The Tabulator Ltd. d. International Computer Ltd.
11. The first electronic general purpose digital computer built by Mauchly and Eckert called ENIAC did not work on the stored program principle. How many numbers could it store in its internal memory?
a. 100 b. 20 c. 40 d. 80
12. The digital computer was developed primarily in
a.
13. The subject of cybernetics deals with the science of
a. Genetics b. Control and communication c. Molecular biology d. Biochemistry
14. Who is credited with the idea of using punch cards to control patterns in a waving machine?
a. Pascal b. Hollerith c. Babbage d. Jacquard
15. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes?
a. Home computers b. Diskless computers c. Dedicated computers d. General purpose computers
16. Which of the following require large computers memory?
a. Imaging b. Graphics c. Voice d. All of Above
17. A term associated with the comparison of processing speeds of different computer system is:
a. EFTS b. MPG c. MIPS d. CPS
18. The process of starting a or restarting a computer system by loading instructions from a secondary storage device into the computer memory is called
a. Duping b. Booting c. Padding d. CPS
19. who invented the microprocessor?
a. Marcian E Huff b. Herman H Goldstein c. Joseph Jacquard d. All of above
20. One computer that is not considered a portable is
a. Minicomputer b. Laptop computer c. Notebook computer d. All of above
Set - 8
1. IBM 7000 digital computer
a. Belongs to second generation b. Uses VLSI
c. Employs semiconductor memory d. Has modular constructions
2. The proper definition of a modern digital computer is
a. An electronic automated machine that can solve problems involving words and numbers
b. A more sophistic and modified electronic pocket calculator
c. Any machine that can perform mathematical operations d. A machine that works on binary code
3. A modern electronic computer is a machine that is meant for
a. Doing quick mathematical calculations b. Input, storage, manipulation and outputting of data
c. Electronic data processing d. Performing repetitive tasks accurately
4. An integrated circuit is
a. A complicated circuit b. An integrating device
c. Much costlier than a single transistor d. Fabricated on a tiny silicon chip
5. Most important advantage of an IC is its
a. Easy replacement in case of circuit failure b. Extremely high reliability
c. Reduced cost d. Lower power consumption
6. In a punched card system, data is processed by a
a. Keypunch machine, sorter and posting machine
b. Accounting machine, posting machine, and billing machine
c. Sorter, posting machine, and billing machine d. Accounting machine, keypunch machine and sorter
7. The first machine to successfully perform a long series of arithmetic and logical operations was;
a. ENIAC b. Mark I c. Analytic engine d. UNIVAC-I
8. In the third generation of computers:
a. Distributed data processing first became popular b. An operating system was first developed
c. High-level prcedu7ral languages were firs used d. On-line, real time systems first became popular
9. A characteristic of card systems is:
a. Slowness in processing data b. Using cards as records of transactions
c. Needing a larger DP staff d. All of the above
10. An IBM system/38 represents the computer class of:
a. Small-scale computer b. Medium-scale computer c. Large-scale computer d. Super computer
11. The first firm to mass- market a microcomputer as a personal computer was
a. IBM b. Sperry Univac c. Data General corporation d. Radio Shack
12. A digital computer did not score over an analog computer in terms of
a. Speed b. Accuracy c. Cost d. Memory
13. In 1830, Charles Babbage designed a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibition?
a. 1820 b. 1860 c. 1855 d. 1870
14. Which was the world’s first minicomputer and when was it introduced?
a. PDP-I, 1958 b. IBM System/36, 1960 c. PDP-II, 1961 d. VAX 11/780, 1962
15. Where was
a. Indian Institute of Technology, Delhi, 1977 b. Indian Institute of Science, Bangalore, 1971
c. Indian Iron & Steel Co. Ltd., 1968 d. Indian Statistical Institute, Calcutta, 1955
16. Which of the following are the two main components of the CPU?
a. Control unit and registers b. Registers and main memory
c. Control Unit and ALU d. ALU and bus
17. Which of the following is true?
a. Fields are composed of bytes b. Records are composed of fields
c. Fields are composed of characters d. All of above
18. Which of the following file organization is most efficient for a file with a high degree of file activity?
a. Sequential b. ISAM c. VSAM d. B-Tree Index
19. The two basic types of record-access methods are
a. Sequential and random b. Sequential and indexed c. Direct and immediate d. On-line and real time
20. The advantage of COM are its … and …
a. Compact size; speed readability b. Compact size, speed
c. Readability; speed d. Low cost; readability
Set - 9
1. A disadvantage of the laser printer is:
a. It is quieter than an impact printer b. It is very slow
c. The output is of a lower quality d. None of above
2. Which of the following is not true for a magnetic disk?
a. It is expensive relative to magnetic tape b. It provides only sequential access to stored data
c. Users can easily update records by writing over the old data d. All of above
3. The primary advantage of key-to-tape data entry system is
a. A large percentage of editing can be performed at the time of data entry
b. Key verification is easily performed
c. The tape is reusable d. Keying errors can be detected as they occur.
4. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
a. Data collection terminal b. OCR register terminal c. Video Display terminal d. POS terminal
5. Which of the following does not affect the resolution of a video display image?
a. Bandwidth b. Raster scan rage c. Vertical and horizontal lines of resolution d. Screen size
6. While inserting a diskette into the diskette drive of a PC, the diskette’s label side should face
a. East b. North c. South d. Up
7. in which year was
a. 1980 b. 1985 c. 1986 d. 1987
8. The latest PC keyboards use a circuit that senses the movement by the change in its capacitance,
a. Capacitance keyboard b. Mechanical keyboard c. Qwerty keyboard d. Dvorak keyboard
9. Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called?
a. Conductors b. Buses c. Connectors d. Connectively
10. Which of the following magazines covers only the IBM PC and its compatibles?
a. Byte b. PC Magazine c. Personal Computing d. Interface Age
11. Which of the following professions has not been affected by personal computers?
a. Medical b. Clerical and law c. Accounting d. None of the above
12. The arranging of data in a logical sequence is called
a. Sorting b. Classifying c. Reproducing d. Summarizing
13. When was Apple Macintosh II microcomputer introduced in the market?
a. 1964 b. 1970 c. 1983 d. 1986
14. What is the name of the new color laptop computer which is powered by a 386 processor at 33 MHz and is built by Epson?
a. AX3/33 b. NEC-20 c. Magnum 2000 d. HCL-3000
15. What does the disk drive of a computer do?
a. Rotate the disk b. Read the disk
c. Load a program from the disk into the memory d. Both b and c
16. The language that the computer can understand and execute is called
a. Machine language b. Application software c. System program d. All of above
17. An application suitable for sequential processing is
a. Processing of grades b. Payroll processing c. Both a and b d. All of above
18. The word processing task associated with changing the appearance of a document is
a. Editing b. Writing c. Formatting d. All of above
19. Which of the following is used as a primary storage device?
a. Magnetic drum b. Prom c. Floppy d. All of above
20. Which of the following memories needs refreshing?
a. SRAM b. DRAM c. ROM d. All of above
Set - 10
1. Which of the following devices can be sued to directly image printed text?
a. OCR b. OMR c. MICR d. All of above
2. The output quality of a printer is measured by
a. Dot per inch b. Dot per sq. inch c. Dots printed per unit time d. All of above
3. In analog computer
a. Input is first converted to digital form b. Input is never converted to digital form
c. Output is displayed in digital form d. All of above
4. In latest generation computers, the instructions are executed
a. Parallel only b. Sequentially only c. Both sequentially and parallel d. All of above
5. Who designed the first electronics computer – ENIAC?
a. Van-Neumann b. Joseph M. Jacquard
c. J. Presper Eckert and John W Mauchly d. All of above
6. Who invented the high level language c?
a. Dennis M. Ritchie b. Niklaus Writh c.
7. Personnel who design, program, operate and maintain computer equipment refers to
a. Console-operator b. Programmer c. Peopleware d. System Analyst
8. When did arch rivals IBM and Apple Computers Inc. decide to join hands?
a. 1978 b. 1984 c. 1990 d. 1991
9. Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?
a. Monitor b. Hardware c. Robot d. Computer
10. An error in software or hardware is called a bug. What is the alternative computer jargon for it?
a. Leech b. Squid c. Slug d. Glitch
11. Modern Computer are very reliable but they are not
a. Fast b. Powerful c. Infallible d. Cheap
12. What is the name of the display feature that highlights are of the screen which requires operator attention?
a. Pixel b. Reverse video c. Touch screen d. Cursor
13. IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display?
a.
14. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?
a. Daughter board b. Motherboard c. Father board d. Breadboard
15. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board?
a. Motherboard b. Breadboard c. Daughter board d. Grandmother board
16. What is meant by a dedicated computer?
a. Which is used by one person only b. Which is assigned one and only one task
c. Which uses one kind of software d. Which is meant for application software
17. The system unit of a personal computer typically contains all of the following except:
a. Microprocessor b. Disk controller c. Serial interface d. Modem
18. A computer program that converts an entire program into machine language is called a/an
a. Interpreter b. Simulator c. Compiler d. Commander
19. A computer program that translates one program instructions at a time into machine language is called a/an
a. Interpreter b. CPU c. Compiler d. Simulator
20. A small or intelligent device is so called because it contains within it a
a. Computer b. Microcomputer c. Programmable d. Sensor
Set - 11
1. The ALU of a computer responds to the commands coming from
a. Primary memory b. Control section c. External memory d. Cache memory
2. The act of retrieving existing data from memory is called
a. Read-out b. Read from c. Read d. All of above
3. All modern computer operate on
a. Information b. Floppies c. Data d. Word
4. Instructions and memory address are represented by
a. Character code b. Binary codes c. Binary word d. Parity bit
5. Which of the following code used in present day computing was developed by IBM Corporation?
a. ASCII b. Hollerith Code c. Baudot Code d. EBCDIC Code
6. What is the latest write-once optical storage media?
a. Digital paper b. Magneto-optical disk c. WORM disk d. CD-ROM disk
7. The most important advantage of a video disk is
a. Compactness b. Potential capacity c. Durability d. Cost effectiveness
8. What is the number of read-write heads in the drive for a 9-trac magnetic tape?
a. 9 b. 16 c. 18 d. 27
9. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?
a. Track number b. Sector number c. Surface number d. All of above
10. As compared to diskettes, the hard disks are
a. More expensive b. More portable c. Less rigid d. Slowly accessed
11. Floppy disks which are made from flexible plastic material are also called?
a. Hard disks b. High-density disks c. Diskettes d. Templates
12. Regarding a VDU, Which statement is more correct?
a. It is an output device b. It is an input device c. It is a peripheral device d. It is hardware item
13. What is the name of the computer terminal which gives paper printout?
a. Display screen b. Soft copy terminal c. Hard copy terminal d. Plotter
14. Dot-matrix is a type of
a. Tape e. Printer f. Disk g. Bus
15. The two kinds of main memory are:
a. Primary and secondary b. Random and sequential c. ROM and RAM d. All of above
16. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called
a. Laser printer b. Ink-jet printer c. Drum printer d. Chan printer
17. Which printer is very commonly used for desktop publishing?
a. Laser printer b. Inkjet printer c. Daisywheel printer d. Dot matrix printer
18. An output device that uses words or messages recorded on a magnetic medium to produce audio response is
a. Magnetic tape b. Voice response unit c. Voice recognition unit d. Voice band
19. Which of the following will happen when data is entered into a memory location?
a. It will add to the content of the location b. It will change the address of the memory location
c. It will erase the previous content d. It will not be fruitful if there is already some data at the location
20. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
a. Memory b. Buffer c. Accumulator d. Address
Set - 12
1. To locate a data item for storage is
a. Field b. Feed c. Database d. Fetch
2. Programs designed to perform specific tasks is known as
a. system software b. application software c. utility programs d. operating system
3. Perforated paper used as input of output media is known as
a. paper tapes b. magnetic tape c. punched papers tape d. card punch
4. Time during which a job is processed by the computer is
a. Delay times b. Real time c. Execution time d. Down time
5. a computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as
a. Super computer b. Mini computer c. Micro computer d. Macro computer
6. An approach that permits the computer to work on several programs instead of one is
a. On-line thesaurus b. Multiprogramming c. Over lapped processing d. Outline processor
7. A directly accessible appointment calendar is feature of a … resident package
a. CPU b. Memory c. Buffer d. ALU
8. The term gigabyte refers to
a. 1024 bytes b. 1024 kilobytes c. 1024 megabytes d. 1024 gigabyte
9. Which of the following processors use RISC technology?
a. 486dx b. Power PC c. 486sx d. 6340
10. A/n …. Device is any device that provides information, which is sent to the CPU
a. Input b. Output c. CPU d. Memory
11. Current SIMMs have either … or … connectors (pins)
a. 9 or 32 b. 30 or 70 c. 28 or 72 d. 30 or 72
12. The storage subsystem in a microcomputer consists mainly of … or … media with varying capacities
a. Memory or video b. Magnetic or optical c. Optical or memory d. Video or magnetic
13. Which of the following is not an input device?
a. OCR b. Optical scanners c. Voice recognition device d. COM (Computer Output to Microfilm)
14. The central processing unit (CPU) consists of
a. Input, output and processing
b. Control unit, primary storage, and secondary storage
c. Control unit, arithmetic-logic unit and primary storage
d. Control unit, processing, and primary storage
15. EBCDIC can code up to how many different characters?
a. 256 b. 16 c. 32 d. 64
16. Which is considered a direct entry input device?
a. Optical scanner b. Mouse and digitizer c. Light pen d. All of the above
17. Which is used for manufacturing chips?
a. Bus b. Control unit c. Semiconductors d. A and b only
18. The computer code for the interchange of information between terminals is
a. ASCII b. BCD c. EBCDIC d. All of above
19. A byte consists of
a. One bit b. Four bits c. Eight bits d. Sixteen bits
20. A hybrid computer
a. Resembles digital computer b. Resembles analog computer
c. Resembles both a digital and analog computer d. None of the above
Set - 13
1. The silicon chips used for data processing are called
a. RAM chips b. ROM chips c. Micro processors d. PROM chips
2. The metal disks, which are permanently housed in, sealed and contamination free containers are called
a. Hard disks b. Floppy disk c.
3. A computer consists of
a. A central processing unit b. A memory c. Input and output unit d. All of the above
4. An application program that helps the user to change any number and immediately see the result of that change is
a. Desktop publishing program b. Database c. Spreadsheet d. All of above
5. The instructions for starting the computer are house on
a. Random access memory b. CD-Rom c. Read only memory chip d. All of above
6. The ALU of a computer normally contains a number of high speed storage element called
a. Semiconductor memory b. Registers c. Hard disks d. Magnetic disk
7. A factor which would strongly influence a business person to adopt a computer is its
a. Accuracy b. Reliability c. Speed d. All of above
8. The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as
a. Magnetic core memory b. Magnetic tape memory
c. Magnetic disk memory d. Magnetic bubble memory
9. CAD stands for
a. Computer aided design b. Computer algorithm for design
c. Computer application in design d. All of the above
10. RATS stand for
a. Regression Analysis Time Series b. Regression Analysis Time Sharing
c. Real Analysis Series d. All of above
11. In which year was chip used inside the computer for the first time?
a. 1964 b. 1975 c. 1999 d. 1944
12. What was the name of the first commercially available microprocessor chip?
a. Intel 308 b. Intel 33 c. Intel 4004 d. Motorola 639
13. When were the first minicomputer built?
a. 1965 b. 1962 c. 1971 d. 1966
14. The first digital computer built with IC chips was known as
a. IBM 7090 b. Apple – 1 c. IBM System / 360 d. VAX-10
15. In which language is source program written?
a. English b. Symbolic c. High level d. Temporary
16. Which of the following terms is the most closely related to main memory?
a. Non volatile b. Permanent c. Control unit d. Temporary
17. Which of the following is used for manufacturing chips?
a. Control bus b. Control unit c. Parity unit d. Semiconductor
18. Which of the following is required when more than one person uses a central computer at the same time?
a. Terminal b. Light pen c. Digitizer d. Mouse
19. Which of the following is used only for data entry and storage, and never for processing?
a. Mouse b. Dumb terminal c. Micro computer d. Dedicated data entry system
20. To produce high quality graphics (hardcopy) in color, you would want to use a/n
a. RGB monitor b. Plotter c. Ink-jet printer d. Laser printer
Set - 14
1. Which of the following printers are you sure will not to use if your objective is to print on multi carbon forms?
a. Daisy wheel b. Dot matrix c. Laser d. Thimble
2. Which of the following printing devices and output composed of a series of data?
a. Wire matrix printer b. Band printer c. Wang image printer d. Both a and c
3. The personal computer industry was started by
a. IBM b. Apple c. Compaq d. HCL
4. In the IBM PC-At, what do the words AT stand for
a. Additional Terminals b. Advance technology
c. Applied technology d. Advanced terminology
5. Magnetic tape can serve as
a. Secondary storage media b. Output media c. Input media d. All of the above
6. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be
a. 216 b. 65,536 c. 64K d. Any of the above
7. The two major types of computer chips are
a. External memory chip b. Primary memory chip c. Microprocessor chip d. Both b and c
8. As compared to the secondary memory, the primary memory of a computer is
a. Large b. Cheap c. Fast d. Slow
9. Which of the following is a way to access secondary memory?
a. Random access memory b. Action method c. Transfer method d. Density method
10. Which was the most popular first generation computer?
a. IBM 1650 b. IBM 360 c. IBM 1130 d. IBM 2700
11. What is the responsibility of the logical unit in the CPU of a computer?
a. To produce result b. To compare numbers c. To control flow of information d. To do math’s works
12. The secondary storage devices can only store data but they cannot perform
a. Arithmetic Operation b. Logic operation c. Fetch operations d. Either of the above
13. Which of the printers used in conjunction with computers uses dry ink power?
a. Daisy wheel printer b. Line printer c. Laser printer d. Thermal printer
14. Which of the following produces the best quality graphics reproduction?
a. Laser printer b. Ink jet printer c. Plotter d. Dot matrix printer
15. Which of the following memories allows simultaneous read and writes operations?
a. ROM b. RAM c. EPROM d. None of above
16. Which of the following memories has the shortest access times?
a. Cache memory b. Magnetic bubble memory c. Magnetic core memory d. RAM
17. A 32 bit microprocessor has the word length equal to
a. 2 byte b. 32 byte c. 4 byte d. 8 byte
18. An error in computer data is called
a. Chip b. Bug c. CPU d. Storage device
19. A set of information that defines the status of resources allocated to a process is
a. Process control b. ALU c. Register Unit d. Process description
20. Any method for controlling access to or use of memory is known
a. Memory map b. Memory protection c. Memory management d. Memory instruction
Set - 16
1. One millisecond is
a. 10 seconds b. 10 seconds c. 1000 seconds d. 10000 seconds
2. An online backing storage system capable of storing larger quantities of data is
a. CPU b. Memory c. Mass storage d. Secondary storage
3. One of a class of storage device devices that can access storage locations in any order is
a. DTE b. DASD c. DDE d. DDE
Correct Answer: b
4. Which is an item of storage medium in the form of circular plate?
a. Disk b. CPU c. Printer d. ALU
5. Properly arranged data is called
a. Field b. Words c. Information d. File
6. Another word for a daisy wheel printer
a. Petal printer b. Golf ball printer c. Laser printer d. Line printer
7. A term used to describe interconnected computer configuration is
a. Multiprogramming b. Modulation c. Multiprocessing d. Micro program sequence
8. An input /output device at which data enters or leaves a computer system is
a. Keyboard b. Terminal c. Printer d. Plotter
9. A physical connection between the microprocessor memory and other parts of the m9crocomputer is known as
a. Path b. Address bus c. Route d. All of the above
10. A group of magnetic tapes, videos or terminals usually under the control of one master is
a. Cylinder b. Surface c. Track d. Cluster
11. Number crunch8ier is the informal name for
a. Mini computer b. Super computer c. Microcomputer d. Mainframe computer
12. A technique used by codes to convert an analog signal into a digital bit stream is known as
a. Pulse code modulation b. Pulse stretcher c. Query processing d. Queue management
13. The personnel who deals with the computer and its management put together are called
a. Software b. Human ware c. Firmware d. Hardware
14. The brain of any computer system is
a. ALU b. Memory c. CPU d. Control unit
15. Each model of a computer has a unique
a. Assembly of a computer b. Machine language c. High level language d. All of the above
16. Computer professionals working in a computer center are`
a. Software b. Firmware c. Hardware d. Humanware
17. Which of the it5ems below are considered removable storage media?
a. Removable hard disk cartridges b. (Magneto-optical) disk
c. Flexible disks cartridges d. All of the above
18. Which term is used to describe RAM?
a. Dynamic RAM (DRAM) b. Static RAM (SRAM) c. Video RAM (VRAM) d. All of the above
19. Which of the following are (is) considered to be video component?
a. Resolution b. Color depth c. Refresh rate d. All of the alcove
20. On a PC, how much memory is available to application software?
a. 1024 KB b. 760 KB c. 640 KB d. 560 KB
Set - 21
1. Which of the following are the two main components of the CPU?
a. Control Unit and Registers b. Registers and Main Memory
c. Control unit and ALU d. ALU and bus
2. The two basic types of record access methods are:
a. Sequential and random b. Sequential and indexed
c. Direct and immediate d. Online and real time
3. A disadvantage of the laser printer is
a. It is quieter than an impact printer b. It is very slow
c. The output is of a lower quality d. None of the above
4. Different components n the motherboard of a PC unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
a. Conductors b. Buses c. Connectors d. Consecutives
5. The language that the computer can understand and execute is called
a. Machine language b. Application software c. System program d. All of the above
6. Which of the following is used as a primary storage device?
a. Magnetic drum b. PROM c. Floppy disk d. All of these
7. Which of the following memories needs refresh?
a. SRAM b. DRAM c. ROM d. All of above
8. Which of the following devices can be used to directly input printed text?
a. OCR b. OMR c. MICR d. All of above
9. The output quality of a printer is measured by
a. Dot per cm b. Dots per inch c. Dots printed per unit time d. All of above
10. In analog computer
a. Input is first converted to digital form b. Input is never converted to digital form
c. Output is displayed in digital form d. All of the above
11. Who designed the first electronics computer – ENIAC/
a. Von Neumann b. Joseph M Jacquard c. J. P. Eckert and J. W. Mauchly d. All of above
12. Modern computers are very reliable but they are not
a. Fast b. Powerful c. Infallible d. Cheap
13. Which 8-bit chip was used in many of today’s TRS-80 computers?
a. Z-8000 b. Motorola 6809 c. Z-8808 d. Z-80
14. Personal computers used a number of chips mounted on a main circuit board. What is the common name for such boards?
a. Daughterboard b. Motherboard c. Father board d. Childboard
15. In most of the IBM PCs, the CPU, the device drivers, memory, expansion slots and active components are mounted on a single board. What is the name of the board?
a. Motherboard b. Daughterboard c. Bredboard d. Fatherboard
16. A computer program that converts an entire program into machine language at one time is called a/an
a. Interpreter b. CPU c. Compiler d. Simulator
17. A computer Program that translates one program inst5ruction at a time into machine language is called a/an
a. Interpreter b. CPU c. Compiler d. Simulator
Set - 17
1. Which of the following items are examples of storage devices?
a. Floppy / hard disks b. CD-ROMs c. Tape devices d. All of the above
2. The Width of a processor’s data path is measured in bits. Which of the following are common data paths?
a. 8 bits b. 12 bits c. 16 bits d. 32 bits
3. Which is the type of memory for information that does not change on your computer?
a. RAM b. ROM c. ERAM d. RW / RAM
4. What type of memory is not directly addressable by the CPU and requires special software called
a. Extended b. Expanded c. Base d. Conventional
5. Before a disk can be used to store data. It must be…….
a. Formatted b. Reformatted c. Addressed d. None of the above
6. What type of device is computer keyboard?
a. Memory b. Output c. Storage d. Input
7. The original ASCII code used…bits of each byte, reserving that last bit for error checking
a. 5 b. 6 c. 7 d. 8
8. Which company is the biggest player in the microprocessor industry?
a. Motorola b. IBM c. Intel d. AMD
9. What is required when more than one person uses a central computer at the same time?
a. Light pen b. Mouse c. Digitizer d. Terminal
10. A hard copy would be prepared on a
a. Line printer b. Dot matrix Printer c. Typewriter terminal d. All of the above
11. A typical personal computer used for business purposes would have… of RAM.
a. 4 KB b. 16 K c. 64 K d. 256 K
12. A high quality CAD system uses the following for printing drawing and graphs
a. Dot matrix printer b. Digital plotter c. Line printer d. All of the above
13. Symbolic logic was discovered by
a. George Boole b. Herman Hollerith c. Van Neumann d. Basic Pascal
14. What was the nick name of the computer used by the Americans in 1952 for their H-bomb project?
a. ENIAC b. EDSAC c. MANIAC d. UNIVAC
15. The word length of a computer is measured in
a. Bytes b. Millimeters c. Meters d. Bits
16. Multi user systems provided cost savings for small business because they use a single processing unit to link several
a. Personal computers b. Workstations c. Dumb terminals d. Mainframes
17. What are the three decisions making operations performed by the ALU of a computer?
a. Grater than b. Less than c. Equal to d. All of the above
18. Which part of the computer is used for calculating and comparing?
a. Disk unit b. Control unit c. ALU d. Modem
19. Can you tell what passes into and out from the computer via its ports?
a. Data b. Bytes c. Graphics d. Pictures
20. Which type of computers uses the 8-bit code called EBCDIC?
a. Minicomputers b. Microcomputers c. Mainframe computers d. Super computer
Set 18
1. Where as a computer mouse moves over the table surface, the trackball is
a. Stationary b. Difficult to move c. Dragged d. Moved in small stems
2. Which one of the following input device is user-programmable?
a. Dumb terminal b. Smart terminal c. VDT d. Intelligent terminal
3. Which computer memory is used for storing programs and data currently being processed by the CPU?
a. Mass memory b. Internal memory c. Non-volatile memory d. PROM
4. Computer instructions written with the use of English words instead of binary machine code is called
a. Mnemonics b. Symbolic code c. Gray codes d. Opcode
5. computer operators
a. writes computer programs for specific problems
b. operate the device which input and output data from the computer
c. normally require a college degree in computer science
d. all of the above
6. A computer programmer
a. Dies all the thinking for a compute b. Can enter input data quickly
c. Can operate all types of computer equipment d. Can draw only flowchart
7. CD-ROM
a. Is a `semiconductor memory b. Memory register
c. Magnetic memory d. None of the above
8. Which of the following is not a primary storage device?
a. Magnetic tape b. Magnetic disk c. Optical disk d. None of the above
9. A name or number used to identify a storage location is called
a. A byte b. A record c. An address d. All of above
10. Which of the following is a secondary memory device?
a. Keyboard b. Disk c. ALU d. All of the above
11. The difference between memory and storage is that memory is …. and storage is …
a. Temporary, permanent b. Permanent, temporary c. Slow, fast d. All of above
12. A floppy disk contains
a. Circular tracks only b. Sectors only c. Both circular tracks and sectors d. All of the above
13. The octal equivalence of 111010 is
a. 81 b. 72 c. 71 d. None of above
14. The first electronic computer in the world was
a. UNIVAC b. EDVAC c. ENIAC d. All of above
15. The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is called
a. ASCII b. EBCDIC c. BCD d. All of above
16. Which was the computer conceived by Babbage?
a. Analytical engine b. Arithmetic machine c. Donald Knuth d. All of above
17. Offline device is
a. A device which is not connected to CPU b. A device which is connected to CPU
c. A direct access storage device d. An I/O device
18. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
a. Memory address register b. Memory data register
c. Instruction registers d. Program counter
19. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
a. Memory address register b. Memory data register
c. Instruction register d. Program counter
20. Microprocessors can be used to make
a. Computer b. Digital systems c. Calculators d. All of the above
Set - 19
1. How many address lines are needed to address each memory location in a 2048 x 4 memory chip?
a. 10 b. 11 c. 8 d. 12
2. Which American Computer Company is called big blue?
a. Microsoft b. Compaq Corp c. IBM d. Tandy Sevenson
3. When did IBM introduced the 80286 based PC/AT?
a. 1982 b. 1984 c. 1985 d. 1989
4. The first electronic general purpose digital computer built by Motley and Accrete called ENIAC did not work on the stored program concept. How many number s could it store in its internal memory?
a. 100 b. 20 c. 40 d. 80
5. The digital computer was developed primarily in
a.
6. The subject of cybernetics deals with the science of
a. Genetics b. Control and communications c. Molecular biology d. Biochemistry
7. who is credited with the idea of using punch cards to control patterns of a weaving machine?
a. Pascal b. Hollerith c. Babbage d. Jacquard
8. Most of the inexpensive personal computer does not have any disk or diskette drive. What is the name of such computes?
a. Home computers b. Diskless computers c. Dedicated computer d. General computer
9. Which of the following required large computer memory?
a. Imaging b. Graphics c. Voice d. All of above
10. A term associated with the comparison of processing speeds of different computer system is:
a. EFTS b. MPG c. MIPS d. CFPS
11. The processes of starting or restarting a computer system by loading instructions from a secondary storage device into the completer memory is called
a. Duping b. Booting c. Padding d. All of above
12. Who invented the microprocessor?
a. Marcian E Huff b. Herman H Goldstein c. Joseph Jacquard d. All of above
13. One computer that is not considered a portable computer is
a. Minicomputer b. A laptop computer c. Mini computer d. All of the above
14. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
a. 16 digits b. 6 digits c. 9 digits d. All of above
15. A dumb terminal has
a. An embedded microprocessor b. Extensive memory
c. Independent processing d. A keyboard and screen
16. Plotter accuracy is measured in terms of repeatability and
a. Buffer size b. Resolution c. Vertical dimensions d. Intelligence
17. Daisy wheel printer is a type of
a. Matrix primer b. Impact printer c. Laser printer d. Manual printer
18. The number of records contained within a block of data on magnetic tape is defined by the
a. Block definition b. Record contain clause c. Blocking factor d. Record per block factor
19. Serial access memories are useful in applications where
a. Data consists of numbers b. Short access time is required
c. Each stored word is processed differently
d. Data naturally needs to flow in and out in a serial form
20. Which of the following memories must be refreshed many times per second?
a. Static RAM b. Dynamic RAM c. EPROM d. ROM
Set - 20
381. The memory which is programmed at the time it is manufactured
a. ROM b. RAM c. PROM d. EPROM
382. Which of the following memory medium is not used as main memory system?
a. Magnetic core b. Semiconductor c. Magnetic tape d. Both a and b
383. Registers, which are partially visible to users and used to hold conditional, are known as
a. PC b. Memory address registers c. General purpose register d. Flags
384. One of the main feature that distinguish microprocessors from micro-computers is
a. Words are usually larger in microprocessors b. Words are shorter in microprocessors
c. Microprocessor does not contain I/O devices d. Exactly the same as the machine cycle time
385. The least significant bit of the binary number, which is equivalent to any odd decimal number, is:
a. 0 b. 1 c. 1 or 0 d. 3
386. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
a. Bus control b. Interrupts c. Bus arbitration d. Status
387. When was the world’s first laptop computer introduced in the market and by whom?
a. Hewlett-Packard b. Epson, 1981 c. Laplink traveling software Inc. 1982
d. Tandy model-2000, 1985
388. The first microprocessor built by the Intel Corporation was called
a. 8008 b. 8080 c. 4004 d. 8800
389. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries/
a. Claude Shannon b. Konrard Zues c. George Stibits d. Howard H. Aiken
390. Who developed a mechanical device in the 17th century that could add, subtract, multiple, divide and find square roots?
a. Napier b. Babbage c. Pascal d. Leibniz
391. IBM 7000 digital computer
a. Belongs to second generation b. Uses VLSI
c. Employs semi conductor memory d. Has modular constructions
392. An integrated circuit is
a. A complicated circuit b. An integrating device
c. Much costlier than a single transistor d. Fabricated on a tiny silicon chip
393. Most important advantage of an IC is its
a. Easy replacement in case of circuit failure b. Extremely high reliability
c. Reduced cost d. Low powers consumption
394. The first machine to successfully perform a long series of arithmetic and logical operations was:
a. ENIAC b. Mark-I c. Analytic Engine d. UNIVAC-1
395. In the third Generation of computers
a. Distributed data processing first became popular
b. An operating system was first developed
c. High level procedural language were first used
d. Online real time systems first become popular
396. An IBM system/38 represents the computer class of:
a. Small scale computer b. Medium scale computer
c. Large scale computer d. Super computer
397. The first firm to mass-market a microcomputer as a personal computer was
a. IBM b. Super UNIVAC c. Radio Shaks d. Data General Corporation
398. A digital computer did not score over an analog computer in terms of
a. Speed b. Accuracy c. Reliability d. Cost
399. In 1830, Charles Babbage designed a machine called the analytical engine, which he showed at the parts exhibition. In which year was it exhibited?
a. 1820 b. 1860 c. 1855 d. 1970
400. Which was the world’s first minicomputer and when was it introduced?
a. PDP-I, 1958 b. IBM System/36, 1960 c. PDP-II, 1961 d. VAX 11/780, 1962
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