Symbols for Legacy Computing: Difference between revisions

Revision as of 19:59, 10 September 2024

Revision as of 00:04, 11 September 2024

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'''Symbols for Legacy Computing''' is a [[Unicode block]] containing graphic characters that were used for various [[home computer]]s from the 1970s and 1980s and in [[Teletext]] broadcasting standards. It includes characters from the [[Amstrad CPC character set|Amstrad CPC]], [[MSX character set|MSX]], [[Mattel Aquarius]], [[RISC OS character set|RISC OS]], [[MouseText]], [[Atari ST character set|Atari ST]], [[TRS-80 Color Computer]], [[Oric computers|Oric]], [[TI-99/4A|Texas Instruments TI-99/4A]], [[TRS-80 character set|TRS-80]], [[Minitel]], [[Teletext character set|Teletext]], [[ATASCII]], [[PETSCII]], [[ZX80 character set|ZX80]], and [[ZX81 character set|ZX81]] character sets. [[Semigraphics]] characters are also included in the form of new block-shaped characters, line-drawing characters, and 60 "sextant" characters (semigraphic character made up of six smaller blocks).<ref>{{cite web |url=https://www.unicode.org/L2/L2018/18235-terminals-prop.pdf |title=Proposal to add characters from legacy computers and teletext to the UCS |access-date=2020-03-11}}</ref><ref>{{cite web |url=https://www.unicode.org/L2/L2018/18235-aux-LegacyComputingSources.pdf |title=Legacy Computing Sources |access-date=2020-03-11}}</ref>

A supplemental block ([[Symbols for Legacy Computing Supplement]]) was added with Unicode 16.0.

A supplement block was approved in 2022 for inclusion in Unicode 16.0, following proposal L2/21-235.<ref>{{Cite web|url=https://www.unicode.org/alloc/Pipeline.html|title=Proposed New Characters: The Pipeline|website=www.unicode.org}}</ref> The Supplement block includes characters from Amstrad, Apple 8-bit, Kaypro CP/M, Ohio Scientific, Robotron KC, Sharp MZ computers, HP terminals, and TRS-80. It includes a larger set of semigraphics in the form of 230 "octant" characters, large images split into four "characters", and the "large type" characters used for building large text characters.<ref>{{cite web |title=Proposal to add further characters from legacy computers and teletext to the UCS |url=https://www.unicode.org/L2/L2021/21235-terminals-supplement.pdf |date=2021-12-20}}</ref>

==Block==

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==See also==

* [[Box-drawing characters]]

* [[Dingbat]]

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** [[Halfwidth and Fullwidth Forms (Unicode block)|Halfwidth and Fullwidth Forms]]

** [[Supplemental Arrows-C]]

** [[Symbols for Legacy Computing Supplement]]

==References==