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Digital Electronics

Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 1001
 1000
 1100
 0011

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Digital Electronics
In digital systems, 1 byte is equal to ________ bit(s).

 8
 2
 1
 4

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Digital Electronics
The hex address of the 256th memory location is

 001FF
 000FF
 00FFF
 00100

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Digital Electronics
ASCII and EBCDIC codes are

 alphanumeric codes
 numeric codes
 error correcting codes
 BCD codes

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Digital Electronics
Which of the following is a self-complementing code?

 Hamming code
 Gray code
 XS-3 code
 cyclic code

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Digital Electronics
The only function of NOT gate is to ___________.

Invert input signal
Act as a universal gate
None of these
Stop signal

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