Editing Punched tape (section)

== Encoding ==
[[file:Papertape-Wikipedia-example-dark1.svg|thumb|upright|The word "Wikipedia", and a [[Newline|CR/LF]] as 7-bit ASCII, without a parity bit, [[least significant bit]] on the right—e.g. "W" is 1010111]]
Text was encoded in several ways. The earliest standard [[character encoding]] was [[Baudot code|Baudot]], which dates back to the 19th century and had five holes. The Baudot code was superseded by modified five-hole codes such as the [[Baudot code#Murray code|Murray code]] (which added [[carriage return]] and [[line feed]]) which was developed into the [[Western Union code]] which was further developed into the [[International Telegraph Alphabet No. 2]] (ITA 2), and a variant called the [[American Teletypewriter code]] (USTTY).<ref name="Proesch_2009"/> Other standards, such as [[Teletypesetter]] (TTS), [[FIELDATA]] and [[Flexowriter]], had six holes. In the early 1960s, the [[American Standards Association]] led a project to develop a universal code for data processing, which became the [[American Standard Code for Information Interchange]] (ASCII). This seven-level code was adopted by some teleprinter users, including [[AT&T Corporation|AT&T]] ([[Teletype Corporation|Teletype]]). Others, such as [[teleprinter|Telex]], stayed with the earlier codes.