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Digital Computer Electronics

Digital Computer Electronics
Which of the following is a universal gate?

None of these
EX-OR
OR
AND
NAND

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Digital Computer Electronics
Addition of 1101011012, 1110111012, 0001111112, 1001011012, 1111101112 is

11110110000102
10001010001012
None of these
10010000000102
10110101110102

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Digital Computer Electronics
The NOR gate is logically equivalent to an OR gate followed by an _____

XOR
XAND
None of these
inverter
AND

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Digital Computer Electronics
If a microcomputer has a 64K memory, what are the hexadecimal notations for the first and last memory location?

0000, EEEE
0000, FFFF
0000, 9999
None of these
0, 64

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Digital Computer Electronics
Conversion of an octal number 478 to its binary number is

11110112
1100112
1001112
None of these
1100112

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Digital Computer Electronics
A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

None of these
high
0's
low
some low and some high

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