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Digital Electronics

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

 16
 32
 1024
 65536

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 None of these
 +2n-1,-(2n-1-1)
 +(2n-1-1),-2n-1
 +(2n-1-1),-(2n-1-1)

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

 DTL.
 All have same speed.
 TTL.
 RTL.

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Digital Electronics
Why decoder is used in the digital electronics ?

None of these
 To convert coded information into non coded form
 It is used to separate address bus and data bus
 To convert non coded information into coded form

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Digital Electronics
Combinations that are not listed for the input variables are

 Don't Care
 Borrow
 Overflow
 Carry

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 0001111
 001000
 100111
 101001

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