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Digital Computer Electronics

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

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

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Digital Computer Electronics
The 2764 is 65,536-bit EPROM organized as 8,192 words of 8 bits each. How many address lines does it have?

None of these
8
13
14
12

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

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

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

None of these
178
138
158
118

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Digital Computer Electronics
Express -7 as 16-bit signed binary numbers.

1000 0000 0000 0111
0111 0000 0000 0000
0000 0000 0000 0111
0111 0000 0000 0001
None of these

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Digital Computer Electronics
An inventor is a gate with only _____ input; the output is always in the opposite state from the input

one
two
All of these
None of these
more than one

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