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Digital Computer Electronics

Digital Computer Electronics
In which code the successive code characters differ in only one bit position?

gray code
algebraic code
8421 code
None of these
excess 3 code

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Digital Computer Electronics
Conversion of an octal number 31378 to it's decimal equivalent is

153110
193110
None of these
163210
163110

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Digital Computer Electronics
A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.

None of these
sign, hexa
hexa, sign
positive, negative
negative, positive

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Digital Computer Electronics
What does 4k represent?

40
400
4000
4096
None of these

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Digital Computer Electronics
The 7400 series, also called standard TTL, contains a variety of SSI and _____ chips that allow us to build all kinds of digital circuits and systems.

MOS
MOSFET
MSI
LSI
None of these

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Digital Computer Electronics
The EXCLUSIVE - NOR gate is equivalent to an _____ gate followed by an invertor.

NAND
XOR
OR
None of these
AND

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