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Digital Computer Electronics

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

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

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Digital Computer Electronics
The binary number 1100 0101 has _____ bytes

2
8
None of these
4
1

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Digital Computer Electronics
With a NAND latch a low R and a low S produce a _____ condition.

reset
None of these
race
no change
set

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Digital Computer Electronics
Which TTL sub-family has maximum speed?

standard TTL
None of these
high speed TTL
low power TTL
schottky-clamped TTL

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Digital Computer Electronics
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

AND
OR
NOR
NAND
None of these

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

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