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Digital Computer Electronics

Digital Computer Electronics
A combinational logic circuit which generates particular binary word or number is

demultiplexer
encoder
decoder
None of these
multiplexer

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Digital Computer Electronics
The logic 1 in positive logic system is represented by:

zero voltage
None of these
lower voltage level
higher voltage level
negative voltage

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Digital Computer Electronics
An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is _____ An XOR gate can test each received word for parity rejecting words with _____ parity.

high, low
odd, even
even, odd
None of these
low, high

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Digital Computer Electronics
Conversion of an octal number 1128 to hexadecimal number is

2016
None of these
1516
4A16
5A16

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Digital Computer Electronics
A byte is consist of _____ bits

two
None of these
four
eight
ten

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Digital Computer Electronics
The number of binary bits required to represent a hexadecimal digit is

3
4
8
6
None of these

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