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Digital Computer Electronics

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

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

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Digital Computer Electronics
Conversion of binary number 11000112 to an octal number is

1408
1478
1438
1498
None of these

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

8C
AF
All of these
9E
None of these

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Digital Computer Electronics
A combinational logic circuit which generates particular binary word or number is

multiplexer
encoder
None of these
decoder
demultiplexer

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

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

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Digital Computer Electronics
When the LOAD input of a buffer register is active, the input word is stored on the next positive _____ edge.

transistor
pulse
None of these
register
clock

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