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Digital Computer Electronics

Digital Computer Electronics
Binary-Coded-decimal (BCD) numbers express each digit as a _____

nibble
None of these
bit
All of these
byte

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Digital Computer Electronics
Subtraction of 1001011002 from 11101010102 is

11110111112
11110000012
10010111102
1101000012
None of these

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Digital Computer Electronics
The logic 1 in positive logic system is represented by:

zero voltage
negative voltage
lower voltage level
None of these
higher voltage level

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Digital Computer Electronics
The output of the following gate is 1 only if at least one of its inputs is 0.

NOR gate
OR gate
None of these
NAND gate
AND gate

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Digital Computer Electronics
Conversion of binary number 1011012 to its decimal number is

None of these
4710
4010
4510
4310

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Digital Computer Electronics
With positive clocking the clock signal must be _____ for the flip-flop to respond.

None of these
low
race
set
high

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