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Digital Computer Electronics

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

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

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Digital Computer Electronics
Conversion of decimal number 1310 to it's octal number equivalent is

158
178
118
138
None of these

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Digital Computer Electronics
Conversion of binary number 11011001111110002 to hexadecimal number is

A8B916
D9F816
D8F816
None of these
78916

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Digital Computer Electronics
What is the 2's-complement representation of -24 in a 16-bit microcomputer?

None of these
0001 0001 1111 0011
1111 1111 1110 0111
1111 1111 1110 1000
0000 0000 0001 1000

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Digital Computer Electronics
A _____ TTL device can sink up to 16mA and can source up to 400 MA.

Standard
high-power
Schottky
Low-power
None of these

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Digital Computer Electronics
De Morgan's first theorem says that a NOR gate is equivalent to a bubbled _____ gate.

AND
NOR
XAND
None of these
XOR

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