What are ASCII Codes?

Whatever we write on the computer is written in ASCII, every computer user can operate the computer by creating code based on binary system for digits, letters and symbols. But its codes will only apply to programs and commands by that. This allows users of the computer to not exchange information unless they are familiar with the code signals used by each other. In order to facilitate the exchange of information, a standard code has been prepared in America which is now recognized all over the world.It is known as ASCII. In this, every digit, letter or symbol is shown with 8 bits only 0 and 1 numbers are written in these 8 places.

• Bit-

A bit, that is, a binary digit, is the smallest unit of computer memory. It displays a binary digit 0 or 1 in memory. It is a short form of binary digit.

• Byte-

It is the standard unit of computer memory.

Every letter, number or special symbol pressed from the keyboard is stored in the ASCII Code in computer memory. Each ASCII Code is of 8 byte. Thus to store any letter in memory 8 bits together make 1 byte.

• Character-

Apart from numbers, there are signs that are used to convey language and meaning. We see for example
a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9! @ # $% ^ & * () _ - = | \ ',. /; '[] {}: "<>?

There are 256 such codes in ASCII. Standard ASCII codes have a value from 0 to 127, while 128 to 256 are set to an extended ASCII character. Computer systems typically use ASCII code to store characters. Each character is stored using 8 bits.