**Download 4 Bit Comparator Logic Diagram Images**. To add two four bit numbers we use parallel adders. When we talk about subtraction in binary, it is generally performed using addition of 2's complements of the number to be subtracted.

Click on a logic diagram below to view it, or click the edit button to start editing. It consists of two inputs each for two single bit numbers and three outputs to generate by using these boolean expressions, we can implement a logic circuit for this comparator as given below: N c3 is propagated at the same time as c2 and c1.

### Magnitude comparators are used in central processing units and microcontrollers.

Comparison is most basic arithmetic operation that determines if one number is greater than, equal to, or less than the. Digital comparator and magnitude comparator is used in different applications where data comparison is mostly required in many of the activities, and these hold many benefits too. It takes binary numbers as inputs. How would you connect this gate to the single bit comparator (you will need one extra input, the 'lower bits are equal' input (often called 'cascade')) draw the diagram of this.

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