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Digital Computer Electronics

Digital Computer Electronics
The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

XY + YZ
XZ + Y
None of these
X + YZ
X + Y + Z

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Digital Computer Electronics
Subtraction of 1001011002 from 11101010102 is

None of these
11110000012
10010111102
1101000012
11110111112

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Digital Computer Electronics
A shift register can be used for:

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

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Digital Computer Electronics
Flip-flop outputs are always

complimentary
the same
independent of each other
same as inputs
None of these

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Digital Computer Electronics
Which logic family dissipates the minimum power?

ECL
DTL
None of these
CMOS
TTL

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Digital Computer Electronics
Conversion of hexadecimal number 1D7F16 to a decimal number is

755110
877110
None of these
555710
778110

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