Why are vacuum tubes also called valves?
Because they can amplify the weak signals and make them strong
Because they can stop or allow the flow of current
Both of above
None of above
Answer : B
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1) A 32 bit microprocessor has the word length equal to
2) Bit stands for
3) Regarding a VDU, Which statement is more correct?
It is an output device
It is an input device
It is a peripheral device
It is hardware item
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4) What is the meaning of "Hibernate" in Windows XP/Windows 7?
Restart the Computer in safe mode
Restart the Computer in hibernate mode
Shutdown the Computer terminating all the running applications
Shutdown the Computer without closing the running applications
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5) The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
