1. The input unit of a computer-
- (A) Feeds the data in CPU
- (B) Retrives the data from CPU
- (C) Directs all other units
- (D) All of these
2. The control unit of a computer-
- (A) Perform arithmetic and logical operations on the data
- (B) Controls the operation of output devices
- (C) is a device for manually operating the computer
- (D) Directs the other units of the Computer
3. A CPU generally contains-
- (A) Registers and ALU
- (B) A control and timing section
- (C) Instruction decoding circuits
- (D) All of these
4. Which of the following computers is least powerful ?
- (A) Minicomputer
- (B) Microcomputer
- (C) Mainframe computer
- (D) Super computer
5. Which of the following storage device can be carried around
- (A) Floppy disks
- (B) Main memory
- (C) Registers
- (D) Core memory
6. Which of the following coded entries are used to control access to computers?
- (A) Code words
- (B) Pass words
- (C) Binary pass
- (D) ASC-II Codes
7. Hard copy of a document can be obtained from
- (A) Card reader
- (B) CRT
- (C) Laser printer
- (D) Paper tape
8. Which of the following is the internal memory of the computer
- (A) CPU register
- (B) Cache
- (C) Main memory
- (D) All of these
9. Which of the following memories requires refreshing cycle
- (B) ROM
- (A) RAM
- (C) Dynamic MOS
- (D) All of these
10. Which of the following is a temporary memory
- (A) RAM
- (B) ROM
- (C) Both RAM and ROM
- (D) None of the above
11. A temporary memory is destroyed-
- (A) In a few milli seconds
- (B) In a few seconds
- (C) In a few minutes
- (D) When power is switched off
12. Which of the following is a permanent memory
- (A) RAM
- (B) ROM
- (C) Both RAM and ROM
- (D) None of these
13. Memory with highest storage capacity is-
- (A) Core memory
- (B) Semiconductor memory
- (C) Magnetic tape
- (D) Magnetic disc
14. The ALU of a computer normally contains a number of high speed storage elements called
- (A) Semiconductor memory
- (B) Registers
- (C) Hard disk
- (D) Magnetic disk
15. The unit of a computer system which executes program, communicates with and often controls the operation of other sub-systems of the computer is the--
- (A) CPU
- (B) Control unit
- (C) unit
- (D) Peripheral unit
16. Computer peripheral is-
- (A) A computer device which is not connected to CPU
- (B) A device which is connected to
- (C) A device for manually operating the computer
- (D) None of these
17. Second generation computers are characterized by the use of
- (A) Vacuum tubes
- (B) Transistors
- (C) Large scale integration ICs
- D) VLSI ICs
18. Fourth generation computers--
- (A) Were built after 1970
- (B) Use microprocessors
- (C) Were first to use VLSI circuitry
- (D) All of these
19. A mini computer-
- (A) Has limited storage capacity ranging from 8000 to 16000 locations
- (B) Has relatively low speed and low capacity 27 auxiliary storage devices
- (C) Has relatively small basic data unit size within the storage is usually 8 to 16 digits with internal storage word
- (D) All of these
20. The language which a computer can understand is
- (A) High level languages
- (B) Assembly language
- (C) Machine languages
- (D) All of these
