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Digital Computer Electronics

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

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

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Digital Computer Electronics
The output 0 and 1 levels for TTL logic family is approximately

None of these
0.1 and 5 V
0.6 and 3.5 V
0.9 and 1.75V
-1.75 and -0.9 V

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Digital Computer Electronics
_____ has become the most widely used bipolar family.

DTL
MOS
TTL
None of these
ECL

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Digital Computer Electronics
The reduced form of the Boolean expression (A+B)(A+C) is:

AC+B
A+BC
None of these
A+B+C
AB+AC

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Digital Computer Electronics
A diagram that illustrates the ore (Logic) of functions in a progran called a

Sequence of steps
Direction of flow
All of these
None of these
Flowchart

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Digital Computer Electronics
Which logic family dissipates the minimum power?

TTL
ECL
CMOS
DTL
None of these

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