One Point Solution for All JKSSB Exams

The technology particularly used in barcode wand readers and barcode slot readers is Laser Scanner.

Laser scanners are commonly used in barcode wands (also known as barcode wands or barcode wands) and slot readers. These scanners use a laser beam to read the barcode by detecting the reflected light from the barcode lines. This method allows for accurate and rapid scanning of barcodes, making it suitable for various applications in retail, logistics, and other industries where barcodes are used extensively

Computer Science MCQs

Computer Questions with solutions MCQs

1. ______ occurs when an unauthorised person uses the hours paid for by the another person.

2. Graphics software, education software, entertainment software are the commonly known ______ software.

3. The ______ is a board that plugs into the motherboard of computer and generates image for display

4. The speed of a supercomputer is generally measured in ____

5. In MS Word 2019, which of the following shortcut keys is used to close the document?

6. How many antiviruses should run at a time in a computer system?

7. An ______ is a real-world object that exists physically or conceptually.

8. In MS Excel 2019, which of the following shortcut key is used to open the format cells dialog?

9. A ______ is a soft copy output device used to display text and graphics information generated by a computer through a video card.

10. Mouse, Trackball, Electronic, pen etc. are which type of input devices?

11. IPv4 is a ______ bit numeric address

12. Which of the following is a file extension in MS Word 2019?

13. What is the full form of FLOPS in the context of speed of supercomputer?

14. Simplex, half-duplex and duplex are the different types of data transmission ____

15. What is the full form MICR input device?

16. Leased line is a special conditioned telephone line connecting two computer or two line terminating equipment directly and permanently. It is also known as _____

17. ______ register holds an instruction while it is being executed

18. What is the full form of DSS in context of information systems?

19. What is the full form of EPROM?

20. ______ is an electronic device that receives a signal and retransmits it at a higher level so that signal can cover longer distance.

21. Which part of computer performs all major calculation and comparison and also activates and controls the operations of other units of the computer system?

22. Which of the following is an antivirus software?

23. ______ is the process of entering data and instructions into a computer system.

24. An/A ______ is written, which is an English-like explanation of the solution.

25. In MS PowerPoint 2019, format background can be found under which tab?

26. Control unit and arithmetic logic unit of a computer system are together known as ______.

27. ______ refers to the physical devices of a computer system.

28. Arrange the steps of SDLC in ascending order. 1. Requirement Specification 2. Maintenance 3. Analysis and Design

29. What is the full form ASCII?

30. Data ______ means storing the same data at multiple locations

31. In MS Excel 2019, which of the following shortcut key is used to bold the text of selected cell?

32. An ______ device is an electromechanical device that accepts data from outside world and translate them into a from computer can interpret.

33. Which worm is also known as the Great Worm?

34. A ______ communication system can transmit data in once data in one direction only.

35. In which year was the first version of Wi-fi standard introduced?

36. Which one is used as guided media for data transmission?

37. How many bits are there in a nibble?

38. Which register holds address of the active memory location?

39. The gradual deterioration of signal strength across long distance is called ______.

40. Machine language is written as a strings of ______ and ______.

41. Which inputs device is used to recognize a pre-specified type of mark made by pencil or pen?

42. ______ is processed, manipulated and interpreted data.

43. In context of computer devices, ______ is used to input data directly into the computer from the source document without copying and typing the data.

44. Which of the following is a sequential access device?

45. What is the full form of CAM?

46. Notebook computer, desktop computer, handheld computer are the example of which type of computer?

47. Which of the following is a type of view in MS PowerPoint 2019?

48. In MS Excel 2019, which of the following shortcut keys is used to select an entire column in a worksheet?

49. Primary storage is also known as ______.

50. ______ is used to define the structure of a database.

51. Which software are used to make a copy of the information stored on a disk?

52. ______ in a computer system is a method of bypassing normal authentication, securing remote access to a computer, obtaining access to plain text and so on while attempting to remain undetected.

53. In MS Access 2019, relationships can be found under which tab?

54. ______ is a software for hardware.

55. A ______ is an electromechanical device which is used to input alphanumeric data into a computer.

56. Which of the following is a property of a virus program?

57. Which printer consist of tiny nozzles and as the paper moves, nozzles spray ink on it, forming characters and images?

58. Which of the following is a European standard font for OCR?

59. Which of the following is the fourth step of SDLC?

60. ______ port transmits one bit of data through a single wire and is used to connect external modems, plotters etc.

61. How many function keys are there in a QWERTY keyboard?

62. 1 petabytes = ______ bytes.

63. In case of operational amplifiers, the term CMRR stands for ______.

64. PLL stands for ______.

65. Rotational speed of a magnetic disk is 3600 rpm. It can transfer 128 kilobytes data in one full revolution. What is the transfer rate?

66. What is the full form of PSTN in context of networks?

67. What is the full form of DDL in database management System?

68. ______ allow data entry into a computer by processing a set of keys.

69. 1 picosecond = ______ seconds.

70. ______ is a software code intentionally included into a system with the intention to harm the system

71. Which input device is used to convert bitmap images of characters to equivalent ASCII code?

72. What is the shortcut key to expand or collapse the ribbon in MS-powerpoint?

73. What is the full form of OSS?

74. What is the function of Ctrl+O in the MS-Word?

75. What is the full form of ALU?

76. In which year domain name system was introduced?

77. Packet sniffing, E-mail hacking and password cracking are used to ______ access to the system

78. Electronic systems that transfer data from one point to another are called ___

28. Arrange the steps of SDLC in ascending order.
1. Requirement Specification
2. Maintenance
3. Analysis and Design

40. Machine language is written as a strings of and .