Question

Draw and explain 4 bits binary adder and subtractor

Answer 1

Explanation:

Binary Adder/Subtractor. Subtraction of binary numbers can be carried out by using the addition of 2's complement of subtrahend to the minuend. ... Figure above the realization of 4 bit adder-subtractor. From the figure it can be seen that, the bits of the binary numbers are given to full adder through the XOR gates.

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Answer 2

Explanation:

In brief minimum mode is designed for single processor environment while maximum mode is designed for multiprocessor environment. In minimum mode processing unit issues control signals required by memory and i/o devices .