Symbols for Legacy Computing Supplement

From HandWiki
Short description: Unicode character block
Symbols for Legacy Computing Supplement
RangeU+1CC00..U+1CEBF
(704 code points)
PlaneSMP
ScriptsCommon
Unused704 reserved code points
Note: [1][2]

Symbols for Legacy Computing Supplement is a Unicode block containing additional graphic characters that were used for various home computers from the 1970s and 1980s, extending the set of characters provided by the Symbols for Legacy Computing block.

It includes characters from Amstrad CPC, Apple 8-bit, Kaypro CP/M, Mattel Aquarius, Ohio Scientific, Robotron KC, Sharp MZ computers, HP terminals, and TRS-80. It includes a 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.[3]

Block

Template:Unicode chart Symbols for Legacy Computing Supplement

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Symbols for Legacy Computing Supplement block:

Version Final code points[lower-alpha 1] Count L2 ID Document
L2/22-023 Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2022-01-22), Recommendations to UTC #170 January 2022 on Script Proposals 
L2/21-235R (full, no_attach) Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark et al. (2022-01-26), Proposal to add further characters from legacy computers and teletext to the UCS 
L2/22-016 Constable, Peter (2022-04-21), UTC #170 Minutes 
L2/23-012 Anderson, Deborah (2023-01-17), Recommendations to UTC #174 January 2023 on Script Proposals 
L2/23-005 Constable, Peter (2023-02-01), UTC #174 Minutes, "The UTC accepts the name change for U+1CE35 from LARGE TYPE PIECE RAISED UPPER RIGHT ARC to LARGE TYPE PIECE RAISED UPPER LEFT ARC" 
L2/23-164 Anderson, Deborah; Kučera, Jan; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2023-07-21), Recommendations to UTC #176 July 2023 on Script Proposals 
L2/23-157 Constable, Peter (2023-07-31), UTC #176 Minutes, "Change the name of U+1CE07 TOP RIGHT BLACK LEFT-POINTING SMALL TRIANGLE to TOP LEFT BLACK LEFT-POINTING SMALL TRIANGLE" 
U+1CEB0..1CEB3 4 L2/21-234 (full, no_attach, sources, mappings_zip) Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark et al. (2021-12-20), Proposal to add characters from Smalltalk to the UCS 
L2/22-023 Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2022-01-22), Recommendations to UTC #170 January 2022 on Script Proposals 
L2/22-016 Constable, Peter (2022-04-21), UTC #170 Minutes, "UTC accepts ... 5 Smalltalk symbols" 
17.0 U+1CCFA..1CCFC, 1CEBA..1CEBF 9 L2/23-142 Buff, Charlotte (2023-06-26), Proposal to Define Variation Sequences for Emoji Mapped to Legacy Computing Symbols 
L2/23-157 Constable, Peter (2023-07-31), UTC #176 Minutes 
L2/23-252 Bettencourt, Rebecca; Ewell, Doug (2023-10-14), Proposal to disunify Symbols for Legacy Computing from emoji 
L2/23-238R Anderson, Deborah; Kučera, Jan; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2023-11-01), Recommendations to UTC #177 November 2023 on Script Proposals 
L2/23-231 Constable, Peter (2023-12-08), UTC #177 Minutes 
  1. ↑ Proposed code points and characters names may differ from final code points and names

Implementation

The glyphs for the Symbols for Legacy Computing Supplement block have been added to the Cascadia Code (2404.03 release or later),[4] GNU Unifont (version 16.0.01 or higher),[5] BabelStone Pseudographica (version 16.0.0)[6] and Iosevka[when?][7] fonts.

See also

References

  1. ↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. 
  2. ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. 
  3. ↑ "Proposal to add further characters from legacy computers and teletext to the UCS". 2021-12-20. https://www.unicode.org/L2/L2021/21235-terminals-supplement.pdf. 
  4. ↑ Nguyen, Christopher (2024-04-30). "Cascadia Code 2404.23" (in en-US). https://devblogs.microsoft.com/commandline/cascadia-code-2404-23/. 
  5. ↑ "Release Notes - 10 September 2024 (Unifont 16.0.01) - GNU Unifont Glyphs". https://www.unifoundry.com/unifont/index.html. 
  6. ↑ "BabelStone Pseudographica". https://babelstone.co.uk/Fonts/Pseudographica.html. 
  7. ↑ "Symbols For Legacy Computing Supplement - Iosevka Specimen". https://typeof.net/Iosevka/specimen#specimen-block--Symbols--For--Legacy--Computing--Supplement. 



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