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Digital Electronics

Digital Electronics
Which of the following codes is known as the 8421 code?

 Gray code
 XS-3 code
 BCD code
 ASCII code

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 3
 1
 4

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Digital Electronics
9’s complement of 52784630 is

 48225469
 47215369
 58326479
 57316379

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Digital Electronics
The number 10000 would appear just immediately after

1111 (binary)
7777 (octal)
All of these
FFFF (hex)

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Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 65536
 32
 1024
 16

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 XOR
 AND
 OR
 NOR

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