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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 1128 to hexadecimal number is

1516
5A16
4A16
None of these
2016

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

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

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Digital Computer Electronics
A shift register can be used for:

All of these
serial to parallel conversion
parallel to serial conversion
digital delay line
None of these

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

11110110000102
10110101110102
None of these
10010000000102
10001010001012

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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.

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

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Digital Computer Electronics
A microcomputer is a computer that uses a _____ for its CPU.

registers
microprocessor
None of these
vacuum tube
chips

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