GRADE 9 COMPUTER STUDIES END OF TERM EXAM 2021

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• Female
• Male

Grade:

• 9A
• 9U
• 9Y

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1. The __________ performs all the mathematical and logic functions in a computer.

• A. Control unit
• B. Arithmetic and Logic Unit
• C. Central Processing Unit
• D. Random Access Memory

2. Output that disappears when the computer is switched off is called:

• A. permanent
• B. softcopy
• C. hardcopy
• D. output devices

3. Computers like any other device needs special care in order to perform properly. All of the following are ways of caring for your computer EXCEPT:

• A. Use a soft, damp cloth to clean the screen
• B. Eat or drink where the device is located
• C. Use a Surge protector to prevent the system from the damaging effect of power outages or blackouts.
• D. Shut down the system when not in use.

4. The machine cycle consists of 4 steps. What is the name of step 1?

• A. Execute
• B. Fetch
• C. Decode
• D. Storage

5. The four steps of the machine cycle are:

• A. fetching, storing, decoding, CPU
• B. ALU, CPU, CU, fetch
• C. Storing, fetching, decoding, Executing
• D. Arithmetic an Logic Unit, Control Unit, Memory

6. Retrieving an instruction from memory is done at the

• A. decoding stage
• B. fetching stage
• C. storage stage
• D. execution stage