Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

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

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Digital Electronics
A PROM

 can be programmed only once
 can be programmed any number of times
 is erasable by ultraviolet light
 is mask programmed

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Digital Electronics
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?

Two’s complement and one’s complement only
Two’s complement only
All three representations
Sign and magnitude and one’s complement only

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