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Digital Electronics

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

 00FFF
 000FF
 00100
 001FF

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

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 NOR-OR
 AND-AND
 AND-OR
 XOR-NAND

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Digital Electronics
How many numbers are used in the decimal number system?

 0 to 10
 0 to 9
 1 to 10
None of these

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Digital Electronics
1’s complement of 17 is

 11100.
 10111.
 10001.
  01110.

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Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 F0F0
 1010
 5050
 7070

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