# Digital Electronics

Definition: Half adder is a combinational circuit that is used to add two binary numbers of one-bit each. It does not hold the ability to consider the carry-in generated from previous summations. The addend, when added with the augend, provides sum and carry (if present). Half adders are used in addition of LSB of the …

## Half Subtractor

Definition: A Half subtractor is known as a combinational circuit that produces a difference of two, 1-bit binary numbers. More specifically we can say, that it subtracts the two binary values at its input in order to generate a difference of the two values at its output using a borrow bit if required. Thus the …

## Gray Code

Definition: Gray Code is the minimum-change code category of coding in which, the two consecutive values changes by only a single bit. More specifically we can say, it is a binary number system where while moving from one step to the next, only a single bit shows variation. This coding technique was invented by Frank …

## Octal Number System

Definition: Octal number system is a base 8, digital number system. This number system has 8 numbers starting from 0 to 7 in its range. The numbers 0, 1, 2, 3, 4, 5, 6, 7 holds similar meaning as that in case of the decimal number system. Oct means 8 and this is a number …

## Karnaugh Map (K-map)

Definition: Karnaugh Map usually abbreviated as K-map is a systematic approach used for simplifying Boolean expressions or logic functions. It is majorly used method for minimizing the Boolean expressions. K map is basically known to be a different method for the representation of truth table. The Karnaugh map (K map) according to the variables involved …

## Encoders

Definition: Encoders (or binary encoders) are the combinational circuits that are used to change the applied input signal into a coded format at the output. These digital circuits come under the category of medium scale integrated circuit. Basically, these are used to minimize the number of data lines as well as to code the input …

## Binary Number System

Definition: A number system that corresponds only two numerical digits i.e., 0 and 1 is known as a binary number system. As it is a 2-digit system thus known as a base 2 system. The operation of a computer system solely relies on the binary number system. As it only understands binary values i.e., 0 …