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Computer Systems

Multiple Choice

Identify the choice that best completes the statement or answers the question.1. When the computer is working on given

instructions, it is called

a. outputb. storage

c. processing

d. input

2. Which of the following is NOT a function of the

control unit?

a. Read instructions

b. Interpret instructions

c. Direct operationsd. Execute instructions

3. The unit of storage used to represent a character is

a. bit

b. byte

c. word

d. kilobyte

4. In modern computers, the CPU speed is measured

in

a. kilo hertzb. giga bytes

c. kilo bytes

d. giga hertz

5. In modern personal computers, the CPU speed is

measured in

a. nanoseconds

b. milliseconds

c. MHz

d. GHz

6. ENIAC was the first:

a. Electromechanical computer

b. Electronic computer

c. Computer with integrated circuits

d. Microcomputer

7. Which is not an example of a peripheral device?

a. Keyboard

b. Mousec. Floppy disk

d. Speakers

8. A program is a:

a. Hardware device

b. Memory device

c. Set of instructions

d. Register

9. Which device is not found in the CPU?

a. ALU

b. Control Unit

c. Instruction register

d. Printer

10. The ALU processes data and stores it in:

a. A diskette

b. Main Memory

c. The instruction register

d. The program counter

11. Which one of the following is not a function of thecontrol unit?

a. Fetch instructions from memoryb. Decode instructions

c. Process instructions

d. Fetch data for required instructions

12. Complex scientific research is usually done using:

a. Microcomputers

b. Supercomputers

c. Minicomputers

d. Mainframe computers

13. The main component that formed the basis for

second generation computers was:

a. Vacuum tubes

b. Registers

c. Integrated circuits

d. Transistors

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14. Third generation computers were used during theperiod:

a. 1933-1945

b. 1945-1956

c. 1956-1963d. 1964-1970

15. Which generation of computers used ultra large

scale integration (ULSI)?

a. First generationb. Second generation

c. Third generation

d. Fourth generation

16. Which of the following sequence of instructions

does the Control Unit perform?

a. Decodes, executes and fetches

b. Fetches, decodes and executes

c. Executes, decodes and fetches

d. Fetches, executes and decodes

17. Which of the following units performs

mathematical calculations?

a. Control

b. Fetch

c. Arithmetic and Logic

d. Central Processing

18. Which of the following is TRUE of a stand-alone

computer?

a. Organises data among computers

b. Allows users to obtain data from a central

computer

c. Receives data from one computer

d. Enables two or more computers to

communicate

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Computer Systems

Answer Section

MULTIPLE CHOICE

1. ANS: C PTS: 1 NOT: CSEC Specimen 20082. ANS: D PTS: 1 NOT: CSEC Specimen 2008

3. ANS: B PTS: 1 NOT: CSEC Specimen 2008

4. ANS: D PTS: 1 NOT: CSEC Specimen 2008

5. ANS: D PTS: 1 NOT: CSEC June 2010

6. ANS: A PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

7. ANS: C PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

8. ANS: C PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

9. ANS: D PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

10. ANS: B PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

11. ANS: C PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

12. ANS: B PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)13. ANS: D PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

14. ANS: D PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

15. ANS: D PTS: 1 NOT: Log on to IT for CSEC (2nd Ed.)

16. ANS: B PTS: 1 NOT: CSEC June 2011

17. ANS: C PTS: 1 NOT: CSEC June 2011

18. ANS: D PTS: 1 NOT: CSEC June 2011