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Digital Electronics

Digital Electronics
A device which converts BCD into octal is called

 code converter
 decoder
 encoder
 demultiplexer

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1
 +(2n-1-1),-(2n-1-1)

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Digital Electronics
The 7-bit Hamming code is used to transmit

 4 data bits
 7 data bits
 no data bits
 3 data bits

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Digital Electronics
The complement of a function A is

 A
 0
 Ā
 1

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

OR operation
None of these
NOT operation
AND operation

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.111
10101.001
10100.001

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