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Digital Computer Electronics

Digital Computer Electronics
A logic circuit which is used to change a BCD number into an equivalent decimal number is

code converter
encoder
None of these
multiplexer
decoder

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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

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

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Digital Computer Electronics
The m-bit parallel adder consists of:

(m+1) full adders
m/2 full adders
m-1 full adders
m full adders
None of these

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Digital Computer Electronics
Which of the following is not true?

0 x 1 = 1
1 x 1 = 1
0X0 = 0
1 x 0 = 0
None of these

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Digital Computer Electronics
Flip-flop outputs are always

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

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

-30
30
-15
15
None of these

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