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Computer Science - Computer Fundamentals

Exercise : Computer Fundamentals - Section 5
26.
The ALU of a central processing unit does the essential maths work for the computer. What does the control unit do?
Communicates its results
Activates the output device
Monitors the flow of information
Control the printer
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Which of the following storage and retrieval methods would be well suited to your processing requirements if you only need to retrieve records one at a time and there is no fixed pattern to the requests for data and records?
indexed sectors
sequential
direct
indexed direct
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
In MODEMS
Several digital signals are multiplexed
A digital signal changes some characteristic of a carrier wave
Digital signal is amplified
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Which is a secondary memory device?
CPU
ALU
Floppy disk
Mouse
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
A storage device which is used to store data & information external to the main storage is known as
Buffer
Backing storage
PROM
Accumulator
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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