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) What is the name of the new color laptop computer which is powered by a 386 processor at 33 MHz and is built by Epson?
2) Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
3) Who invented vacuum tubes?
4) What are the three decisions making operations performed by the ALU of a computer?
5) A Compiler is _____________________.
a combination of computer hardware
a program which translates from one high-level language to another
a program which translates from one high-level to a machine level language
None of these
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