Multiple Choice Questions with Answers :-
1. UNIVAC is
A) Universal Automatic Computer
B) Universal Array Computer
C) Unique Automatic Computer
D) Unvalued Automatic Computer
Answers .A
2. The basic operations performed by a computer are
A) Arithmetic operation
B) Logical operation
C) Storage and relative
D) All the above
Answers .D
3. The two major types of computer chips are
A) External memory chip
B) Primary memory chip
C) Microprocessor chip
D) Both b and c
Answers .D
4. Microprocessors as switching devices are for which generation computers
A) First Generation
B) Second Generation
C) Third Generation
D) Fourth Generation
Answers .D
5. What is the main difference between a mainframe and a super computer?
A) Super computer is much larger than mainframe computers
B) Super computers are much smaller than mainframe computers
C) Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
D) Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.
Answers .C
6. ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand 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
Answers .A
7. The brain of any computer system is
A) ALU
B) Memory
C) CPU
D) Control unit
Answers .C
8. 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
Answers .D
9. The two kinds of main memory are:
A) Primary and secondary
B) Random and sequential
C) ROM and RAM
D) All of above
Answers .C
10. 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
Answers .B
11. Computer is free from tiresome and boardoom. We call it
A) Accuracy
B) Reliability
C) Diligence
D) Versatility
Answers .C
12. Integrated Circuits (Ics) are related to which generation of computers?
A) First generation
B) Second generation
C) Third generation
D) Fourth generation
Answers .C
13. CD-ROM is a
A) Semiconductor memory
B) Memory register
C) Magnetic memory
D) None of above
Answers .D
14. A hybrid computer
A) Resembles digital computer
B) Resembles analogue computer
C) Resembles both a digital and analogue computer
D) None of the above
Answers .C
15. Which type of computers uses the 8-bit code called EBCDIC?
A) Minicomputers
B) Microcomputers
C) Mainframe computers
D) Super computer
Answers .C
16. The ALU of a computer responds to the commands coming from
A) Primary memory
B) Control section
C) External memory
D) Cache memory
Answers .B
17. Chief component of first generation computer was
A) TrAnswers istors
B) Vacuum Tubes and Valves
C) Integrated Circuits
D) None of above
Answers .B
18. 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
Answers .B
19. What are the stages in the compilation process?
A) Feasibility study, system design and testing
B) Implementation and documentation
C) Lexical Analysis, syntax analysis, and code generation
D) None of the above
Answers .C
20. Which of the following IC was used in third generation of computers?
A) SSI
B) MSI
C) LSI
D) Both a and b
Answers .D
21. The main electronic component used in first generation computers was
A) TrAnswers istors
B) Vacuum Tubes and Valves
C) Integrated Circuits
D) None of above
Answers .B
22. A dumb terminal has
A) an embedded microprocessor
B) extensive memory
C) independent processing capability
D) a keyboard and screen
Answers .D
23. One millisecond is
A) 1 second
B) 10th of a seconds
C) 1000th of a seconds
D) 10000th of a seconds
Answers .C
24. The output quality of a printer is measured by
A) Dot per sq. inch
B) Dot per inch
C) Dots printed per unit time
D) All of the above
Answers .A
25. Which of the following was a special purpose computer?
A) ABC
B) ENIAC
C) EDVAC
D) All of the above
Answers .A
26. What was the computer invented by Attanasoff and Clifford?
A) Mark I
B) ABC
C) Z3
D) None of above
Answers .B
27. Which of the following storage devices can store maximum amount of data?
A) Floppy Disk
B) Hard Disk
C) Compact Disk
D) Magneto Optic Disk
Answers .B
28. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
A) ENIAC
B) MARK I
C) Z3
D) ABC
Answers .A
29. A physical connection between the microprocessor memory and other parts of the microcomputer is known as
A) Path
B) Address bus
C) Route
D) All of the above
Answers .B
30. High density double sided floppy disks could store _____ of data
A) 1.40 MB
B) 1.44 GB
C) 1.40 GB
D) 1.44 MB
Answers .D
31. 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
Answers .B
32. Which of the following is not an input device?
A) OCR
B) Optical scanners
C) Voice recognition device
D) COM (Computer Output to Microfilm)
Answers .D
33. 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
Answers .B
34. In most of the IBM PCs, the CPU, the device drivers, memory, expAnswers ion 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
Answers .A
35. In most IBM PCs, the CPU, the device drives, memory expAnswers ion 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
Answers .A
36. Magnetic disks are the most popular medium for
A) Direct access
B) Sequential access
C) Both of above
D) None of above
Answers .D
37. 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
Answers .A
38. 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
Answers .C
39. 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
Answers .B
40. When was vacuum tube invented?
A) 1900
B) 1906
C) 1910
D) 1880
Answers .B
41. Which of the following produces the best quality graphics reproduction?
A) Laser printer
B) Ink jet printer
C) Plotter
D) Dot matrix printer
Answers .C
42. Computers with 80286 microprocessor is
A) XT computer
B) AT comptuers
C) PS/2 computer
D) None of above
Answers .B
43. An application suitable for sequential processing is
A) Processing of grades
B) Payroll processing
C) Both a and b
D) All of above
Answers .C
44. Which of the following is not processing?
A) arranging
B) manipulating
C) calculating
D) gathering
Answers .D
45. The digital computer was developed primarily in
A) USSR
B) Japan
C) USA
D) UK
Answers .C
46. 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
Answers .A
47. 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) Computing Tabulating Recording Co.
C) The Tabulator Ltd.
D) International Computer Ltd.
Answers .B
48. 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
Answers .D
49. The arranging of data in a logical sequence is called
A) Sorting
B) Classifying
C) Reproducing
D) Summarizing
Answers .A
50. 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
Answers .B
51. Abacus was the first
A) electronic computer
B) mechanical computer
C) electronic calculator
D) mechanical calculator
Answers .D
52. 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
Answers .B
53. Instructions and memory address are represented by
A) Character code
B) Binary codes
C) Binary word
D) Parity bit
Answers .B
54. 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
Answers .D
55. A set of flip flops integrated together is called ____
A) Counter
B) Adder
C) Register
D) None of the above
Answers .C
56. People often call ______ as the brain of computer system
A) Control Unit
B) Arithmetic Logic Unit
C) Central Processing Unit
D) Storage Unit
Answers .C
57. Which is used for manufacturing chips?
A) Bus
B) Control unit
C) Semiconductors
D) A and b only
Answers .C
58. The value of each bead in heaven is
A) 1
B) 3
C) 5
D) 7
Answers .C
59. The first computer introduced in Nepal was
A) IBM 1400
B) IBM 1401
C) IBM 1402
D) IBM1402
Answers .B
60. 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
Answers .B
61. Instruction in computer languages consists of
A) OPCODE
B) OPERAND
C) Both of above
D) None of above
Answers .C
62. Which generation of computer is still under development
A) Fourth Generation
B) Fifth Generation
C) Sixth Generation
D) Seventh Generation
Answers .B
63. A register organized to allow to move left or right operations is called a ____
A) Counter
B) Loader
C) Adder
D) Shift register
Answers .D
64. Which was the most popular first generation computer?
A) IBM 1650
B) IBM 360
C) IBM 1130
D) IBM 2700
Answers .A
65. Which is considered a direct entry input device?
A) Optical scanner
B) Mouse and digitizer
C) Light pen
D) All of the above
Answers .D
66. 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
Answers .D
67. Each set of Napier’s bones consisted of ______ rods.
A) 5
B) 9
C) 11
D) 13
Answers .C
68. BCD is
A) Binary Coded Decimal
B) Bit Coded Decimal
C) Binary Coded Digit
D) Bit Coded Digit
Answers .A
69. When was the world’s first laptop computer introduced in the market and by whom?
A) Hewlett-Packard, 1980
B) Epson, 1981
C) Laplink Traveling Software Inc, 1982
D) Tandy Model-200, 1985
Answers .B
70. From which generation operating systems were developed?
A) First
B) Second
C) Third
D) Fourth
Answers .C
71. 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
Answers .C
72. 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
Answers .B
73. Properly arranged data is called
A) Field
B) Words
C) Information
D) File
Answers .C
74. A computer consists of
A) A central processing unit
B) A memory
C) Input and output unit
D) All of the above
Answers .D
75. Why are vacuum tubes also called valves?
A) Because they can amplify the weak signals and make them strong
B) Because they can stop or allow the flow of current
C) Both of above
D) None of above
Answers .B
76. John Napier invented Logarithm in
A) 1614
B) 1617
C) 1620
D) None of above
Answers .A
77. An integrated circuit is
A) A complicated circuit
B) An integrating device
C) Much costlier than a single trAnswers istor
D) Fabricated on a tiny silicon chip
Answers .D
78. 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
Answers .C
79. 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 steps
Answers .A
80. Which of the following is used as a primary storage device?
A) Magnetic drum
B) Hard Disks
C) Floppy
D) All of above
Answers .A
81. 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
Answers .C
82. 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
Answers .D
83. The word processing task associated with changing the appearance of a document is
A) Editing
B) Writing
C) Formatting
D) All of above
Answers .C
84. Nepal brought a computer for census of 2028 BS. This computer was of
A) first generation
B) second generation
C) third generation
D) fourth generation
Answers .C
85. Algorithm and Flow chart help us to
A) Know the memory capacity
B) Identify the base of a number system
C) Direct the output to a printer
D) Specify the problem completely and clearly
Answers .D
86. 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) Both a & b
Answers .D
87. 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
Answers .A
88. When was Pascaline invented?
A) 1617
B) 1620
C) 1642
D) 1837
Answers .C
89. Which of the following statement is valid?
A) Lady Augusta is the first programmer
B) Ada is the daughter of Lord Byron, a famous English poet
C) ADA is a programming language developed by US Defense
D) All of above
Answers .D
90. A compiler is a trAnswers lating program which
A) TrAnswers lates instruction of a high level language into machine language
B) TrAnswers lates entire source program into machine language program
C) It is not involved in program’s execution
D) All of above
Answers .D
91. 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
Answers .D
92. Which of the following is the first computer to use Stored Program Concept?
A) UNIVAC
B) ENIAC
C) EDSAC
D) None of above
Answers .C
93. The term gigabyte refers to
A) 1024 bytes
B) 1024 kilobytes
C) 1024 megabytes
D) 1024 gigabyte
Answers .C
94. in which year was UK’s premier computing event called ?The which computer? started?
A) 1980
B) 1985
C) 1986
D) 1987
Answers .A
95. Once you load the suitable program and provide required data, computer does not need human intervention. This feature is known as
A) Accuracy
B) Reliability
C) Versatility
D) Automatic
Answers .D
96. What is a brand?
A) The name of companies that made computers
B) The name of product a company gives to identify its product in market
C) A name of class to indicate all similar products from different companies
D) All of above
Answers .B
97. Machine language is
A) Machine dependent
B) Difficult to program
C) Error prone
D) All of above
Answers .D
98. A byte consists of
A) One bit
B) Four bits
C) Eight bits
D) Sixteen bits
Answers .C
99. Modern Computers are very reliable but they are not
A) Fast
B) Powerful
C) Infallible
D) Cheap
Answers .C
100. What is the date when Babbage conceived Analytical engine
A) 1642
B) 1837
C) 1880
D) 1850
Answers .B