ASCII

Informatics

2022

We explain what the ASII code is and what this code of written characters is for. Complete table with ASCII codes.

computing, is known as ASCII (pronounced aski) or ASCII code to a code of written characters that is based on the Latin alphabet, identical to that used by modern English. It comes from a renewal or reworking of the code used until 1963 in telegraphy, carried out by the American Committee for Standards (today the ASA, for its acronym in English). His name is an acronym for American Standard Code for Information Interchange o American Standard Code for Information Exchange.

The original ASCII code used 7 bits of information to represent each of the corresponding characters, and an additional bit for error checking (for a total of 8 bits, i.e. a byte). It should not be confused with various current 8-bit codes that extend ASCII to incorporate signs from languages ​​other than English.

Put more simply, it is a numerical translation of the alphabet used by English, since computer systems only handle binary code (0-1) as language to represent its logical operations. Thus, each character (letter, sign or even blank space) corresponds in ASCII to a numeric string of eight bits (eight digits between 0 and 1, that is, in binary code).

The ASCII standard was first published in 1967 and was last updated in 1986, bringing it to its contemporary version for 32 non-printable characters and 95 printable characters that follow in numbering.It is a code used almost universally by current computer systems, essential for managing typographical devices, such as keyboards.

As the usage needs of the code increased, extended versions of ASCII were created to facilitate the incorporation of non-English languages ​​and specialized logical, mathematical, or scientific descriptors. Even "ASCII art" or computer-generated images became popular. computer through the strategic positioning of code strings on the page, which when seen from afar make up figures and drawings.

ASCII Code Examples

Some examples of ASCII formulation to represent common characters are as follows:

  • Character “A”: 0100 0001
  • Character “C”: 0100 0011
  • Character “!”: 0010 0001
  • Character “#”: 0010 0011
  • Character “/”: 0010 1111
  • Character “K”: 0100 1011
  • Character “k”: 0110 1011
  • Character “X”: 0101 1000
  • Character “x”: 0111 1000
  • Character “[”: 0101 1011
  • Character “=”: 0011 1101
  • Character “Z”: 0101 1010
  • Character “z”: 0111 1010
  • Character “:”: 0011 1010
  • Character “,”: 0010 1100
  • Character “.”: 0010 1110
  • Character “0”: 0011 0000
  • Character “6”: 0011 0110
  • Character “9”: 0011 1001
  • Character “+”: 0010 1011
  • Character “-”: 0010 1101
  • Character “]”: 0101 1101
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