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Digital Electronics

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

 1024
 32
 16
 65536

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

 0011
 1001
 1000
 1100

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Digital Electronics
ASCII code is a

 8-bit code
 10-bit code
 7-bit code
 5-bit code

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Digital Electronics
If clock time period is 1ms, what is its frequency

 1 MHz
 1 kHz
None of these
 1 mHz

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Digital Electronics
16’s complement of BABA is?

 4445
 4546
 4446
 4544

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 hexadecimal
 ASCII
 octal
 natural BCD

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