Symbols for Legacy Computing
| Symbols for Legacy Computing | |
|---|---|
| Range | U+1FB00..U+1FBFF (256 code points) |
| Plane | SMP |
| Scripts | Common |
| Assigned | 250 code points |
| Unused | 6 reserved code points |
| Unicode version history | |
| 13.0 (2020) | 212 (+212) |
| 16.0 (2024) | 249 (+37) |
| 17.0 (2025) | 250 (+1) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1] [2] | |
Symbols for Legacy Computing is a Unicode block containing graphic characters that were used for various home computers from the 1970s and 1980s and in teletext broadcasting standards. It includes characters from the Amstrad CPC, MSX, Mattel Aquarius, RISC OS, MouseText, Atari ST, TRS-80 Color Computer, Oric, Texas Instruments TI-99/4A, TRS-80, Minitel, Teletext, ATASCII, PETSCII, ZX80, and 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).[3] [4] Additional characters were added to this block in Unicode 16.0 as well.
A supplemental block (Symbols for Legacy Computing Supplement) was added with Unicode 16.0.
Block
[edit ]The image below is provided as quick reference for these symbols on systems that are unable to display them directly:
History
[edit ]The following Unicode-related documents record the purpose and process of defining specific characters in the Symbols for Legacy Computing block:
| Version | Final code points[a] | Count | L2 ID | WG2 ID | Document |
|---|---|---|---|---|---|
| 13.0 | U+1FB00..1FB92, 1FB94..1FBCA, 1FBF0..1FBF9 | 212 | L2/17-435R | Ewell, Doug; Bettencourt, Rebecca; Everson, Michael; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2018年04月23日), Proposal to add characters from legacy computers and teletext to the UCS | |
| L2/18-039 | Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Moore, Lisa; Liang, Hai; Cook, Richard (2018年01月19日), "26", Recommendations to UTC #154 January 2018 on Script Proposals | ||||
| L2/18-235 (full, no_attach, sources, mappings_zip) | Ewell, Doug; Bettencourt, Rebecca; Bánffy, Ricardo; Everson, Michael; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2018年07月20日), Proposal to add characters from legacy computers and teletext to the UCS | ||||
| L2/18-241 | Anderson, Deborah; et al. (2018年07月20日), "19", Recommendations to UTC # 156 July 2018 on Script Proposals | ||||
| L2/18-275R (full, no_attach, sources, mappings_zip) | Ewell, Doug; Bettencourt, Rebecca; Bánffy, Ricardo; Everson, Michael; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2018年09月06日), Proposal to add characters from legacy computers and teletext to the UCS | ||||
| L2/18-300 | Anderson, Deborah; et al. (2018年09月14日), "11", Recommendations to UTC #157 on Script Proposals | ||||
| L2/19-025 (full, no_attach, sources, mappings_zip) | N5028 | Ewell, Doug; Bettencourt, Rebecca; Bánffy, Ricardo; Everson, Michael; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2019年01月04日), Proposal to add characters from legacy computers and teletext to the UCS | |||
| L2/19-047 | Anderson, Deborah; et al. (2019年01月13日), "24", Recommendations to UTC #158 January 2019 on Script Proposals | ||||
| L2/19-008 | Moore, Lisa (2019年02月08日), "E.2", UTC #158 Minutes | ||||
| L2/20-015R | Moore, Lisa (2020年05月14日), "B.10.17.2", Draft Minutes of UTC Meeting 162 | ||||
| 16.0 | U+1FBCB..1FBEF | 37 | L2/21-235 (full, no_attach, sources, mappings_zip) | Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2021年12月20日), Proposal to add further characters from legacy computers and teletext to the UCS | |
| L2/22-023 | Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2022年01月22日), "17 Legacy Computing Symbols", 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; Steele, Shawn; Turner, Rebecca (2022年01月26日), Proposal to add further characters from legacy computers and teletext to the UCS | ||||
| L2/22-016 | Constable, Peter (2022年04月21日), "D.1 17 Legacy Computing Symbols", UTC #170 Minutes | ||||
| 17.0 | U+1FBFA | 1 | L2/23-142 | Buff, Charlotte (2023年06月26日), Proposal to Define Variation Sequences for Emoji Mapped to Legacy Computing Symbols | |
| L2/23-157 | Constable, Peter (2023年07月31日), "G.3", UTC #176 Minutes | ||||
| L2/23-252 | Bettencourt, Rebecca; Ewell, Doug (2023年10月14日), Proposal to disunify Symbols for Legacy Computing from emoji | ||||
| L2/23-238R | Anderson, Deborah; Kučera, Jan; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2023年11月01日), "14 Symbols", Recommendations to UTC #177 November 2023 on Script Proposals | ||||
| L2/23-231 | Constable, Peter (2023年12月08日), "Consensus 177-C35", UTC #177 Minutes | ||||
| |||||
See also
[edit ]- Box-drawing characters
- Dingbat
- other Unicode blocks
References
[edit ]- ^ "Unicode character database". The Unicode Standard. Retrieved 2023年07月26日.
- ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023年07月26日.
- ^ "Proposal to add characters from legacy computers and teletext to the UCS" (PDF). Retrieved 2020年03月11日.
- ^ "Legacy Computing Sources" (PDF). Retrieved 2020年03月11日.
External links
[edit ]- Cascadia Code 2404.23 – release notes for Cascadia Code, which shows the rendering of Symbols for Legacy Computing Supplement characters