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Digital Electronics

Digital Electronics
An EPROM is

 erasable but not programmable
 volatile
 non erasable
 programmable and erasable

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Digital Electronics
A three-state buffer has the following output states

 Both A and B
 1, 0, float
 Set, Reset, Halt
 High, Low, Float

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

 ROM
 EAROM
 PROM
All of these

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Digital Electronics
AND operation is equivalant to

 Union
 Both B and C
 Intersection
 Division

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Digital Electronics
A half adder is a ________ circuit.

 Combinational
 Both A and B
 Sequential
 None

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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 2’s complement is used to represent the numbers, then the range will be

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

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