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Digital Computer Electronics

Digital Computer Electronics
A multiplexer is also known as

coder
multivibrator
decoder
data selector
None of these

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

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

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Digital Computer Electronics
How many full and half-adders are required to add 16-bit numbers?

4 half-adders, 12 full-adders
1 half-adders, 15 full-adders
16 half-adders, no full-adders
None of these
8 half-adders, 8 full-adders

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Digital Computer Electronics
In which of the following adder circuits, the carry look ripple delay is eliminated?

Full adder
None of these
Parallel adder
Half adder
Carry-look-ahead adder

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Digital Computer Electronics
Conversion of binary number 1010000101112 to hexadecimal number is

A8B916
A1716
None of these
D8F916
D9F816

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Digital Computer Electronics
Which of the following logic families use bipolar transistors?

None of these
CMOS
GaAS
TTL
NMOS

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