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Digital Electronics

Digital Electronics
Number of 2 input multiplexers need to construct a 210 inputs multiplexer is _________

 32
 129
 9
 1023

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

 1010
 7070
 5050
 F0F0

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 32 × 8
 16 × 16
 64 × 4
 256 × 1

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Digital Electronics
How many entries will be in the truth table of a 3 input NAND gate ?

 9
 3
 8
 6

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 an AND or a NOR
 an OR or an X-OR
 an OR or an X-NOR
 a NAND or an X-OR

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 1’s complement is used to represent the numbers, then the range will be

 -127 to 127
 -256 to 256
 -128 to 127
 -256 to 255

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