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Digital Computer Electronics

Digital Computer Electronics
Which of the following is a universal gate?

AND
None of these
NAND
EX-OR
OR

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Digital Computer Electronics
The main advantage of hexadecimal numbers is the case of conversion from hexadecimal to _____ and vice versa.

ASCE
binary
BCD
None of these
decimal

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Digital Computer Electronics
The 2-input XOR gate has a high output only when the input bits are _____

different
even
high
low
None of these

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Digital Computer Electronics
A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

None of these
0's
low
some low and some high
high

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Digital Computer Electronics
Semiconductor memory is:

somewhat larger than the magnetic core memory
All of these
a volatile memory
None of these
somewhat slower than magnetic core memory

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Digital Computer Electronics
Conversion of a octal number 638 to its decimal number is

None of these
5710
5310
5110
6110

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