Search results
Results from the WOW.Com Content Network
ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic
higher resolution scan w/ less artifacts, US-ASCII-1967 Standard Code MIL-STD-188-100 1972-11-15 B-2 Fig 1: 14:07, 20 October 2017: 1,724 × 1,241 (35 KB) Jeff G. File:US-ASCII code chart.png cropped 8 % horizontally and 9 % vertically using CropTool with precise mode.
USASCII code chart.png This SVG image was uploaded in a graphics format such as GIF , PNG , JPEG , or SVG . However, it consists purely or largely of information which is better suited to representation in wikitext (possibly using MediaWiki's special syntax for tables , math , or music ).
The BBC Micro could utilize the Teletext 7-bit character set, which had 128 box-drawing characters, whose code points were shared with the regular alphanumeric and punctuation characters. Control characters were used to switch between regular text and box drawing.
A wide character refers to the size of the datatype in memory. It does not state how each value in a character set is defined. Those values are instead defined using character sets, with UCS and Unicode simply being two common character sets that encode more characters than an 8-bit wide numeric value (255 total) would allow.
Accordingly, character sets are very often indicated by their IBM code page number. In ASCII-compatible code pages, the lower 128 characters maintained their standard ASCII values, and different pages (or sets of characters) could be made available in the upper 128 characters.
The resulting value of B1 is in the range 0–250. The special value 254 is used to return to ASCII encoding mode. Character code interpretations are shown in the table below. The C40 and Text modes have four separate sets. Set 0 is the default, and contains codes that temporarily select a different set for the next character.
For convenience, some terminals accept Ctrl-Space as an alias for Ctrl-@. In either case, this produces one of the 32 ASCII control codes between 0 and 31. Neither approach works to produce the DEL character because of its special location in the table and its value (code 127 10), Ctrl-? is sometimes used for this character. [5]