Computer and Scientific Quiz for UGC | NET | JRF | SET Exams

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

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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

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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

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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

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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

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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

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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

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20. The language which a computer can understand is

• (A) High level languages
• (B) Assembly language
• (C) Machine languages
• (D) All of these