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Digital Electronics

Digital Electronics
The decimal equivalent of hexadecimal number “BEED” is

 48,777
 47,877
 48,877
 none

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Digital Electronics
Which number system has a base of 16

 None
 Octal
 Decimal
 Hexadecimal

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 10
Base 3
Base 8
Base 16

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Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m
 2m-1
 2m+1

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 RTL.
 All have same speed.
 DTL.

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Digital Electronics
Digital computers are more widely used as compared to analog computers, because they are

Less expensive
Useful over wider ranges of problem types
Always more accurate and faster
Easier to maintain

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