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Digital Computer Electronics

Digital Computer Electronics
A combinational logic circuit which generates particular binary word or number is

encoder
demultiplexer
decoder
multiplexer
None of these

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

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

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Digital Computer Electronics
An OR gate has 6 inputs. What is the only input word that produces a 0 output?

111000
111
111111
None of these

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Digital Computer Electronics
How many full adders are required to construct an m- bit parallel adder?

None of these
m+1
m
m/2
m-1

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Digital Computer Electronics
Conversion of binary number 10010012 to hexadecimal is

4016
4216
None of these
3916
4916

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Digital Computer Electronics
Convert the 1000 0000 0000 1111 signed binary number to decimal number.

-15
None of these
-30
30
15

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