A. MCQ & Very Short Questions: Mark: 1
1. Which of the following is not an output device?(a) Speaker
(b) Mouse
(c) Printer
(d) Monitor
Ans: (b) Mouse
2. Which one of the following is the "brain" of a computer?
(a) CPU
(b) ALU
(c) CU
(d) MU
Ans: (a) CPU
3. A collection of eight bits is called
(a) Byte
(b) Word
(c) Record
(d) Nibble
Ans: (a) Byte
4. Second-generation computers were manufactured using which technology?
(a) Vacuum tubes
(b) Transistors
(c) ICs
(d) None of these
Ans: (b) Transistors
5. Storage of 1KB means the following number of bytes:
(a) 1000
(b) 1024
(c) 1064
(d) 1012
Ans: (b) 1024
6. Which of the following is not hardware?
(a) Hard disk
(b) Printer
(c) Assembler
(d) CPU
Ans: (c) Assembler
7. Fourth generation computers use
(a) Vacuum tubes
(b) Transistors
(c) Microprocessors
(d) ICs
Ans: (c) Microprocessors
8. Which one of the following is a special-purpose application software?
(a) Word-processing software
(b) Operating system software
(c) Compiler
(d) Payroll system
Ans: (d) Payroll system
9. The base of Octal Number System is
(a) 2
(b) 10
(c) 16
(d) 8
Ans: (d) 8
10. Who is known as the father of the modern computer?
(a) Charles Babbage
(b) Blaise Pascal
(c) Herman Hollerith
(d) John Atanasoff
Ans: (a) Charles Babbage
11. Napier's bones was developed by
(a) Blaise Pascal
(b) Gottfried Wilhelm von Leibnitz
(c) John Napier
(d) Herman Hollerith
Ans: (c) John Napier
12. The analytical engine was designed by
(a) Blaise Pascal
(b) Gottfried Wilhelm von Leibnitz
(c) Charles Babbage
(d) Herman Hollerith
Ans: (c) Charles Babbage
13. Pascaline was developed by
(a) Blaise Pascal
(b) Gottfried Wilhelm von Leibnitz
(c) Charles Babbage
(d) Herman Hollerith
Ans: (a) Blaise Pascal
14. The first commercial computer was
(a) ENIAC
(b) EDSAC
(c) UNIVAC I
(d) None of these
Ans: (c) UNIVAC I
15. The first stored program computer was
(a) UNIVAC I
(b) None of these
(c) ENIAC
(d) EDVAC
Ans: (d) EDVAC
16. Punched cards are associated with the name
(a) Hollerith
(b) Leibnitz
(c) Jacquard
(d) Pascal
Ans: (a) Hollerith
17. Third-generation computers used
(a) Transistors
(b) Vacuum tubes
(c) Integrated circuits
(d) None of these
Ans: (c) Integrated circuits
18. A computer developed by John Mauchly and J. Presper Eckert
(a) ENIAC
(b) Macintosh
(c) ABC
(d) Z3
Ans: (a) ENIAC
19. Harvard Mark I was
(a) A manual calculating device
(b) A semi-automatic calculating device
(c) An electromechanical calculating device
(d) An electronic computer
Ans: (c) An electromechanical calculating device
20. Fourth generation computers used
(a) Vacuum tubes
(b) Transistors
(c) Microprocessors
(d) None of these
Ans: (c) Microprocessors
21. A ___ is used for entering data directly into the computer. It resembles a typewriter console.
(a) Mouse
(b) Track ball
(c) Keyboard
(d) Scanner
Ans: (c) Keyboard
22. A ___ is a pointing device that can be used to select an option by simply pointing it on the computer screen.
(a) Light pen
(b) Track ball
(c) Keyboard
(d) Scanner
Ans: (a) Light pen
23. A ___ has a ball that can be rotated in different directions to move the pointer on the screen.
(a) Mouse
(b) Track ball
(c) Keyboard
(d) Scanner
Ans: (b) Track ball
24. A ___ allows the user to create digital drawings by handwriting images on a flat surface (or tablet) using a special pen called a stylus.
(a) Joystick
(b) Graphics tablet
(c) Keyboard
(d) Scanner
Ans: (b) Graphics tablet
25. EPROM stands for
(a) Erase Programmable Read Only Memory
(b) Erasable Programme Read Only Memory
(c) Erasable Programmable Read Only Memory
(d) None of these
Ans: (c) Erasable Programmable Read Only Memory
26. The result produced by the computer is called
(a) Input
(b) Output
(c) Fact
(d) None of these
Ans: (b) Output
27. A computer system comprises of
(a) Hardware
(b) Software
(c) Both (a) and (b)
(d) None of these
Ans: (c) Both (a) and (b)
28. Which of these is not a pointing device?
(a) Mouse
(b) Light pen
(c) Joystick
(d) Keyboard
Ans: (d) Keyboard
29. A ___ converts human speech into electrical signals.
(a) Microphone
(b) Touch screen
(c) Bar code
(d) None of these
Ans: (a) Microphone
30. Which of the following output device is used to create large architectural drawings on paper or polyester film?
(a) Dot matrix printer
(b) Plotter
(c) Laser printer
(d) None of these
Ans: (b) Plotter
B. Fill in the blanks.
1. The first-generation computers used ___ for storage.
Ans: Magnetic drums
2. The third generation computers replaced ___ with ___.
Ans: Transistors with Integrated circuits
3. ___ are high speed temporary storage area.
Ans: Registers
4. ___ is the short form of binary digit.
Ans: Bit
5. A group of four bits is called ___.
Ans: Nibble
6. ___ holds data, programs and instructions for computer.
Ans: Memory
7. A microphone is ___ device.
Ans: Input
8. A ___ is set of instructions to perform a specific task.
Ans: Program
9. ___ software are used to scan the computers for viruses.
Ans: Antivirus
10. The decimal system is composed of ___ digits.
Ans: 10
11. ___ was the first fully electronic general purpose computer.
Ans: ENIAC
12. ___ was one of the first commercially available computers.
Ans: UNIVAC I
13. An ___ converts the program written in assembly language into machine language.
Ans: Assembler
14. Processing takes place in the ___.
Ans: CPU
15. The ALU performs the ___ and ___ operations.
Ans: Arithmetic and Logical
16. RAM is ___.
Ans: Volatile
17. ROM stores basic instructions to ___ operate the computer.
Ans: Boot
18. ___ memory is an electronic non-volatile storage medium that can be electrically erased and reprogrammed.
Ans: Flash
19. Data and instructions are given to the computer through its ___ device.
Ans: Input
20. Raw data is processed by the computer to produce ___.
Ans: Information
21. Results are obtained from the computer through its ___ device.
Ans: Output
22. 1 MB = ___ KB.
Ans: 1024
23. ___ is an example of primary memory.
Ans: RAM
24. The octal number system uses the digits from ___ to ___.
Ans: 0 to 7
25. A computer system comprises of both ___ and ___.
Ans: Hardware and Software
26. ___ represents the set of programs that directs the computer how to work.
Ans: Software
27. The development of Abacus can be traced back to the ancient counting boards used in ___ around 3500 BC.
Ans: Mesopotamia
28. The modern abacus probably originated in ___ in the 15th century.
Ans: China
29. The calculating device called Napier's bones was invented by ___ in the 17th century.
Ans: John Napier
30. Pascaline was developed by ___.
Ans: Blaise Pascal
31. ___ developed the punched card as a means of controlling the loom.
Ans: Joseph Jacquard
32. ___ was one of the first commercially available computers.
Ans: UNIVAC I
33. The first electromechanical computer was developed by ___.
Ans: Howard Aiken
34. The first-generation computers were based on ___.
Ans: Vacuum tubes
35. IBM 1401 is an example of ___ generation computers.
Ans: Second
36. Fourth-generation computers are based on ___.
Ans: Microprocessors
37. The EDSAC was the first computer based on the concept of ___.
Ans: Stored program
38. The ENIAC was developed by ___.
Ans: John Mauchly and J. Presper Eckert
39. ___ designed the analytical engine.
Ans: Charles Babbage
40. ___ is the semi-automatic device that used instructions stored on a punched card to control the movement of threads.
Ans: Jacquard Loom
41. The physical components of a computer system are called ___.
Ans: Hardware
42. A ___ can be used to convert a photograph or a printed document into a digital file.
Ans: Scanner
43. MICR stands for ___ Reader.
Ans: Magnetic Ink Character
44. A ___ consists of a vertical stick that can be moved to control on-screen objects. It is used to play computer games.
Ans: Joystick
45. ___ carries data from the memory to the CPU and from the CPU to the memory.
Ans: Data bus
46. ___ carries instructions between the CPU and other parts of the computer.
Ans: Control bus
47. ___ is a system of representing data using machine-readable lines.
Ans: Bar code
48. Raw facts and figures are referred to as ___.
Ans: Data
49. A ___ can be used to convert a photograph or a printed document into a digital file.
Ans: Scanner
50. One gigabyte is equal to ___ MB.
Ans: 1024
51. ___ is called volatile memory.
Ans: RAM
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