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Digital Computer Electronics

Digital Computer Electronics
An inverter is also called a _____ gate.

AND
None of these
NOT
OR
NAND

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Digital Computer Electronics
For an input pulse train of clock period T, the delay produced by an n stage shift register is

nT
None of these
2nT
(n+l)T
(n-l)T

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Digital Computer Electronics
The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output

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

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Digital Computer Electronics
A shift register can be used for:

serial to parallel conversion
digital delay line
All of these
parallel to serial conversion
None of these

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Digital Computer Electronics
De Morgan's first theorem says that a NOR gate is equivalent to a bubbled _____ gate.

NOR
AND
None of these
XAND
XOR

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Digital Computer Electronics
Which of the following Boolean algebra rules is wrong?

1 . x = 1
0 + A = A
A + A = A
1 + A = 1
None of these

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