ASCII ASCII
（重定向自USASCII）
![ASCII chart from a 1972 printer manual (b1 is the least significant bit).](/Images/godic/202502/19/US-ASCII_code_chart2351.png")
![](/Images/godic/202502/19/ASCII_full.svg2351.png")
![Imagen de león creada con arte ascii.](/Images/godic/202502/19/León_ASCII2351.JPG")
![02: Version internationale de référence 06: Jeu de caractères graphiques ASCII](/Images/godic/202502/19/ASCII_Code_Chart-Quick_ref_card2351.jpg")
ASCII (/ˈæski/ ASS-kee), abbreviated from American Standard Code for Information Interchange, is a character-encoding scheme (the IANA prefers the name US-ASCII). ASCII codes represent text in computers, communications equipment, and other devices that use text. Most modern character-encoding schemes are based on ASCII, though they support many additional characters. ASCII was the most common character encoding on the World Wide Web until December 2007, when it was surpassed by UTF-8, which is fully backward compatible to ASCII.