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Digital Computer Electronics

Digital Computer Electronics
Conversion of a octal number 638 to its decimal number is

5710
5110
5310
6110
None of these

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

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

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Digital Computer Electronics
A shift register moves the _____ left or right. Serial loading means storing a word in a shift register by entering _____ bit per clock pulse. With parallel or broadside loading, it takes only one _____ pulse to load the input word.

bits, one, clock
bits, one, register
right, eight, clock
None of these
light, eight, clock

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Digital Computer Electronics
A _____ is a group of devices that store digital data.

register
None of these
circuits
bit
variations

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Digital Computer Electronics
What logic function is obtained by adding an inverter to the output of an AND gate?

None of these
OR
NOR
NAND
XOR

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Digital Computer Electronics
The number of binary bits required to represent a hexadecimal digit is

4
None of these
8
6
3

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