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Microprocessors - Engineering

Q1:

Assertion (A): To add 8 bit words, two 1C 74181 can be cascaded. Reason (R): In 1C 74181 a sum greater than 15 leads to high carry out.

A Both A and R are correct and R is correct explanation of A

B Both A and R are correct but R is not correct explanation of A

C A is correct R is wrong

D A is wrong R is correct

ANS:C - A is correct R is wrong

A is correct but R is wrong. Two IC 74181 can be cascaded to add two 8 bit words.