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Digital Electronics

Digital Electronics
Extended Binary Coded Decimal Interchange Code is an ________ bit code.

 16
 32
 7
 8

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

 00100
 00FFF
 000FF
 001FF

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 256
 128
 8
 255

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Digital Electronics
The binary number 10101 is equivalent to decimal number ___________.

19
21
27
12

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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

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

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Digital Electronics
A NAND gate is called a universal logic element because

Many digital computers use NAND gates.
Any logic function can be realized by NAND gates alone
It is used by everybody
All the minization techniques are applicable for optimum NAND gate realization

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