What is the full form of ASCII

ASCII: American Standard Code for Information Interchange

ASCII is an acronym stands for American Standard Code for Information Interchange. It is pronounced as ask-ee. ASCII is a code that represents English characters as numbers. Each letter is assigned a number from 0 to 127. ASCII is a character encoding standard also known as US-ASCII. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes uses ASCII standard, although they support many additional characters.

For example: The ASCII code for uppercase M is 77. Most computers use ASCII codes to represent text, which makes it possible to transfer data from one computer to another.


ASCII was developed from telegraph code. It was first commercially used as a seven-bit teleprinter code promoted by Bell data services.

ASCII standard was first introduced in the meeting of American Standards Association's (ASA), now known as American National Standards Institute or ANSI on October 6, 1960.

The first edition of the ASCII was published in 1963. After that its revised versions are published in 1967, and the most recent update during 1986.


ASCII was originally based on the English alphabets; it encodes 128 specified characters into seven-bit integers.

See the chart


The above chart shows the characters encoded are:

  • Numbers 0 to 9
  • Lowercase letters a to z
  • Uppercase letters A to Z
  • Basic punctuation symbols
  • Control codes that originated with Teletype machines, and a space.