Thursday, August 18, 2011

Computer Awareness MCQ Part:- 1 for IBPS CWE (Q.1-Q.50)

1. Which of the following is the product of data processing (A) information (B) data (C) software program (D) system
2. The process of putting data into a storage location is called (A) reading (B) writing (C) controlling (D) hand shaking
3. The process of copying data from a memory location is called (A) reading (B) writing (C) controlling (D) booting
4. A list of instructions used by a computer is called (A) program (B) CPU (C) text (D) output
5. The 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)input, processing and storage
6. Which of the following is true about primary storage (A) it is a part of the CPU (B) It allows very fast access to data (C) It is relatively more expensive (D) all of the above
7. Which of the following is the most powerful type of the computer (A) main frame (B) super conductor (C) micro computer (D) super computer
8. Software instruction intended to satisfy a user's specific processing needs are called (A) system software (B) process software (C) documentation (D) application software
9. The computer device primarily used to provide hardcopy is the (A) CRT (B) line printer (C) computer console (D) card reader
10. Which one of the following can produce the final product of machine processing in a form usable by humans
(A) storage (B) control (C) input device (D) output device
11. The term 'memory' applies to which one of the following (A) logic (B) storage (C) input device (D) output device
12. A program written in machine language is called ........ program. (A) object (B) computer (C) assembler (D) high level
13. A source program is the program written in .......... language. (A) English (B) symbolic (C) high level (D) object
14. A typical modern computer uses (A) magnetic cores for secondary storage (B) LSI chips (C) magnetic tape for primary memory (D) more than 10,000 vaccum tubes
15. A collection of 8 bits is called (A) byte (B) record (C) word (D) nibble
16. General purpose computers are those that can be adopted to countless uses simply by changing its
(A) output device (B) input device (C) processor (D) program
17. The current generation of computers (A) second (B) fifth (C) fourth (D) third
18. All of the following are examples of real security and privacy risks EXCEPT:  (A) hackers (B) spam  (C) viruses (D) identity theft.
19. To implement all functions of the basic logic functions, it needs (A) OR gate (B) NOT gate (C) AND and NOT gates (D) None of these
20. In the binary number 110.101, the fractional part has the value (A) 0.625 (B) 0.125 (C) 0.875 (D) 0.5
21. The value of binary 1111 is (A) 23 -1 (B) 24 (C) 24 - 1 (D) None of these
22. The value of 25 in octal system is (A) 20 (B) 40 (C) 400 (D) None of these
23. A hexa decimal number 'AO' has the decimal value (A) 80 (B) 256 (C) 100 (D) 160
24. The binary representation of hexadecimal 'C3' is (A) 1111 (B) 110011 (C) 110001 (D) 11000011
25. The ASCII code is for information interchange by a binary code for (A) numbers only (B) alphabets only (C) alphanumeric and other common symbols (D) None of these
26. A four bit number is given as 1001. Its 1's complement is (A) 1001 (B) 11001 (C) 0110 (D) 0101
27. 2's complement representation of a decimal number -4 is (A) 0100 (B) 1100 (C) 1011 (D) 1010
28. BCD numbers are obtained (A) by converting decimal number to binary (B) by converting decimal to octal (C) when each decimal digit is represented by four bit binary (D) by converting binary to decimal.
29. A gate in which all inputs must be low to get a high output is called (A) an inverter (B) a NOR gate (C) an AND gate (D) a NAND gate
30. For a logical circuit there are 'n' binary inputs. Then the number of different input combinations in the truth table is
(A) 2n (B) 2/n (C) 2n (D) 2(n+1)
31. Which of the following performs modulation and demodulation? (A) Satellite (B) modem (C) fiber optic (D) amplifier
32. A characteristic of multiprogramming system is  (A) Simultaneous execution of program instructions from two applications (B) concurrent processing of two or more programs (C) multiple CPU's (D) all of the above
33. Communication circuits that transmit data in both directions but not at the same time are operating in (A) Simplex mode (B) half-duplex mode (C) full-duplex mode (D) asynchronous mode
34. Operating system functions may include (A) input/output control (B) virtual storage (C) multiprogramming (D) all of the above
35. Transmission of computerised data from one location to another is called (A) data transfer (B) data flow (C) data communication (D) datamanagement
36. Which of the following items is not used in LAN (A) computers (B) modem (C) printer (D) cable
37. Which is the device that converts computer output into a form that can be transmitted over a telephone line
(A) teleport (B) multiplexer (C) concentrator (D) modem
38. What is the commonly used unit for measuring the speed of data transmission (A) bytes per second (B) bits per second (C) baud (D) either b or d
39. A kilobyte also referred to as KB, is equal to (A) 1000 bytes (B) 1024 bytes (C) 2048 bytes (D) 512 bytes
40. Inputs to your computer is accomplished using the (A) Screen (B) keyboard (C) printer (D) plotter
41. Which of the following is not used as secondary storage (A) Semiconductor memory (B) magnetic disks (C) magnetic drums (D) magnetic tapes
42. A collection of wires that connects several device is called (A) link (B) bus (C) cable (D) port
43. A offline device is (A) a device which is not connected to CPU (B) a device which is connected to CPU (C) a device which is in breakdown stage (D) None of these
44. Which of the following is the fastest (A) CPU (B) magnetic tapes and disks (C) video terminal (D) sensors, mechanical controllers
45. Memories in which any location can be reached in a fixed and short amount of time after specifying its address is called
(A) sequential access memory (B) random access memory (C) secondary memory (D) mass storage
46. The register which contains the data to be written into or read out of the addressed location is known as
(A) index register (B) memory address register (C) memory data register (D) program counter
47. The register which keeps track of the execution of a program and which contains the memory address of the next instruction to be executed is known as (A) index register (B) instruction register (C) memory address register (D) program counter
48. Which of the following is used as storage locations both in the ALU and in the control section of a computer
(A) accumalator (B) register (C) adder (D) decoder
49. Accumulator is a (A) hardwired unit (B) sequential circuit (C) finite state machine (D) register
50. Non volatility is an important advantage of (A) CCDs (B) magnetic tapes and disks (C) magnetic bubbles (D) both b and c

1. a 2. b 3. a 4. a 5. c 6. d 7. d 8. d 9. b 10. d 11. B 12. a 13. c 14. b 15. a 16. d 17. c 18. B  19. c 20. a 21. c 22. b 23. d 24. d 25. c 26. c 27. b 28. c 29. b 30. c 31. b 32. b 33. B 34. d 35. c 36. b 37. d 38. d 39. b 40. b 41. a 42. b 43. a 44. A 45. b 46. c 47. d 48. b 49. d 50. d


  1. What about 38 question...
    Plz fix the problem with option no (d)

    1. In telecommunications, data transfer rate is the average number of bits (bitrate), characters or symbols (baudrate), or blocks per unit time passing between equipment in a data transmission system. Most commonly, measurements of data transfer rate are reported in multiples of unit bits per second (bit/s) or occasionally in bytes per second (B/s). The data rates of modern residential high-speed Internet connections are most commonly expressed in multiples of bits per second, such as megabits per second (Mbit/s) or kilobits per second (kbit/s).

      From Wikipedia,