Basic Computer MCQ’s 02

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Basic Computer MCQ’s

31. An adder which adds three binary digits and outputs a result bit and a carry bit is referred as
(A) Half adder
(B) Quarter adder
(C) Full adder
(D) None of these

32. Emulator is a program that
(A) Permits one computer to execute the machine-language instructions of another computer of a different make
(B) Which is not broken down into smaller units
(C) Permits one computer to execute the machine-language instructions of another computer of same make.
(D) None of these

33. Emulator is a program that
(A) Permits one computer to execute the machine-language instructions of another computer of a different make
(B) Which is not broken down into smaller units
(C) Permits one computer to execute the machine-language instructions of another computer of same make.
(D) None of these

34. EDP is referred to
(A) Electronic Data Processing
(B) Data processing through equipment that is predominantly electronic such as digital computer
(C) Both A & B
(D) None of these

35. Internet banking is an example of
(A) Electronic funds transfer (EFT)
(B) EDP (Electronic Data Processing )
(C) EBCDIC
(D) ASCII

36. EBCDIC is
(A) 6-bit coding system
(B) 7-bit coding system
(C) 8-bit coding system
(D) 9-bit coding system

37. A data communication facility on which data can be transmitted in two directions is referred as
(A) Duplex
(B) Simplex
(C) Triplex
(D) None of these

38. Electronic Mail /Message System (EMMS) best suits to
(A) Postal service
(B) Telephone service
(C) Telegraph service
(D) None of these

39. Digital Computer is a computer
(A) that works with discrete quantities
(B) that works with analog quantities
(C) Both A & B
(D) None of these

40. The subdivision of fields
(A) always done to give the programmer greater flexibility
(B) dependent on programming language used
(C) never accomplished on fields containing numeric data
(D) all the above

41. The checking operation performed on input is called
(A) validation of data
(B) verification of data
(C) vilification of data
(D) control of data

42. A device that attaches to both ends of an electrical bus and prevents reflection of echoes of signals that reach the end of the bus is called
(A) Terminator
(B) Connector
(C) Processor
(D) None of these

43. A device mounted on a communication satellite which receives, amplifies and retransmits signals’ from earth stations is called
(A) Terminator
(B) Connector
(C) Processor
(D) Transponder

44. Technique of using disk space to make programs believe that the system contains more random access memory (RAM) than is actually available is called
(A) Virtual memory
(B) Secondary memory
(C) Primary memory
(D) None of these

45. A term means that the application software is priced separately from the computer hardware is called
(A) Unbundled
(B) Bundled
(C) Utility
(D) None of these

46. Following is not the operating system
(A) UNIX
(B) DOS
(C) WINDOWS
(D) BASIC

47. Which of the following is true concerning personal computers?
(A) They have been most successful in the home.
(B) They are user friendly
(C) No specific programming technique required
(D) All the above.

48. While buying a PC system, one should first
(A) identify hardware components
(B) define computing needs
(C) both A and B
(D) None of these

49. The microcomputers which have the same operating characteristics as the IBM microcomputers are called
(A) IBM desk top
(B) IBM PC
(C) IBM advanced computers
(D) None of theses

50. The personal computers are also referred as
(A) desk top micros
(B) advanced computers
(C) palmtop computers
(D) all the above

51. POS data-entry system is used extensively by
(A) banking industry
(B) grocery industry
(C) railroad industry
(D) word-processing industry

52. Primary advantage of key-to-tape data-entry systems
(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

53. Maximum character EBCDIC can code
(A) 8
(B) 16
(C) 64
(D) 256

54. The hexadecimal number system has a base of
(A) 2
(B) 4
(C) 8
(D) 16

55. The use of parity bit is for
(A) coding
(B) indexing
(C) error-detection
(D) none of these

56. The following are basic types of recordaccess methods
(A) sequential and random
(B) direct and immediate
(C) sequential and indexed
(D) on-line and real-time

57. Which of the following is input/output device?
(A) monitors
(B) punched cards
(C) optical scanners
(D) all the above

58. The following magazine covers only the IBM PC and its compatibles
(A) Byte
(B) PC Magazine
(C) Personal Computing
(D) Interface Age

59. The word size of a microprocessor refers to:
(A) the number of machine operations performed/ second
(B) the amount of information that can be stored / cycle
(C) the amount of information that can be stored in bytes
(D) none of these

60. The primary memory of a personal computer consists
(A) ROM only
(B) RAM only
(C) Both ROM and RAM
(D) Memory module