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Digital Computer Electronics

Digital Computer Electronics
De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.

OR
None of these
XOR
AND
XAND

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Digital Computer Electronics
A NOR gate has two or more input signals. All input must be _____ to get a high output

low
some low some high
high
1's
None of these

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

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

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Digital Computer Electronics
Instead of counting with binary numbers, a ring counter uses words that have a single high _____

chip
bit
None of these
gate
bytes

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

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

5310
5710
6110
5110
None of these

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