Digital Electronics
In K-map simplification, a group of four adjacent 1s leads to a term with

 four literals less than the total number of variables
 one literal less than the total number of variables
 two literals less than the total number of variables
 three literals less than the total number of variables

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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?

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

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