Symbols for Legacy Computing: Difference between revisions
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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 |
'''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> |
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A supplement block was approved in 2022 for inclusion in Unicode 16.0.<ref>{{Cite web|url=https://www.unicode.org/alloc/Pipeline.html|title=Proposed New Characters: The Pipeline|website=www.unicode.org}}</ref> |
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> |
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==Block== |
==Block== |
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The following Unicode-related documents record the purpose and process of defining specific characters in the Symbols for Legacy Computing block: |
The following Unicode-related documents record the purpose and process of defining specific characters in the Symbols for Legacy Computing block: |
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! [[Unicode#Versions|Version]] !! {{nobr|Final code points<ref group=lower-alpha name=final/>}} !! Count !! [[International Committee for Information Technology Standards|L2]] ID !! [[ISO/IEC JTC 1/SC 2|WG2]] ID !! Document |
! [[Unicode#Versions|Version]] !! {{nobr|Final code points<ref group=lower-alpha name=final/>}} !! Count !! [[International Committee for Information Technology Standards|L2]] ID !! [[ISO/IEC JTC 1/SC 2|WG2]] ID !! Document |
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| rowspan="10" | 13.0 || rowspan="10" width="180" | U+1FB00..1FB92, 1FB94..1FBCA, 1FBF0..1FBF9 || rowspan="10" | 212 || {{nobr|[https://www.unicode.org/L2/L2017/17435r-terminals-prop.pdf L2/17-435R]}} || || {{Citation |
| rowspan="10" | 13.0 || rowspan="10" width="180" | U+1FB00..1FB92, 1FB94..1FBCA, 1FBF0..1FBF9 || rowspan="10" | 212 || {{nobr|[https://www.unicode.org/L2/L2017/17435r-terminals-prop.pdf L2/17-435R]}} || || {{Citation|title=Proposal to add characters from legacy computers and teletext to the UCS|date=2018-04-23|first1=Doug|last1=Ewell|first2=Rebecca|last2=Bettencourt|first3=Michael|last3=Everson|author-link3=Michael Everson|first4=Eduardo Marín|last4=Silva|first5=Elias|last5=Mårtenson|first6=Mark|last6=Shoulson|first7=Shawn|last7=Steele|first8=Rebecca|last8=Turner|ref=none}} |
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| {{nobr|[https://www.unicode.org/L2/L2018/18039-script-adhoc-rec.pdf L2/18-039]}} || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2018/18039-script-adhoc-rec.pdf L2/18-039]}} || || {{Citation|title=Recommendations to UTC #154 January 2018 on Script Proposals|date=2018-01-19|first1=Deborah|last1=Anderson|first2=Ken|last2=Whistler|first3=Roozbeh|last3=Pournader|first4=Lisa|last4=Moore|first5=Hai|last5=Liang|first6=Richard|last6=Cook|ref=none|section=26}} |
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| {{nobr|[https://www.unicode.org/L2/L2018/18235-terminals-prop.pdf L2/18-235 (full],}} [https://www.unicode.org/L2/L2018/18235-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2018/18235-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2018/18235-aux-mappings.zip mappings_zip]) || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2018/18235-terminals-prop.pdf L2/18-235 (full],}} [https://www.unicode.org/L2/L2018/18235-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2018/18235-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2018/18235-aux-mappings.zip mappings_zip]) || || {{Citation|title=Proposal to add characters from legacy computers and teletext to the UCS|date=2018-07-20|first1=Doug|last1=Ewell|first2=Rebecca|last2=Bettencourt|first3=Ricardo|last3=Bánffy|first4=Michael|last4=Everson|first5=Eduardo Marín|last5=Silva|first6=Elias|last6=Mårtenson|first7=Mark|last7=Shoulson|first8=Shawn|last8=Steele|first9=Rebecca|last9=Turner|ref=none}} |
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| {{nobr|[https://www.unicode.org/L2/L2018/18241-script-ad-hoc.pdf L2/18-241]}} || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2018/18241-script-ad-hoc.pdf L2/18-241]}} || || {{Citation|title=Recommendations to UTC # 156 July 2018 on Script Proposals|date=2018-07-20|first1=Deborah|last1=Anderson|display-authors=etal|ref=none|section=19}} |
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| {{nobr|[https://www.unicode.org/L2/L2018/18275r-terminals-prop.pdf L2/18-275R (full],}} [https://www.unicode.org/L2/L2018/18275r-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2018/18275r-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2018/18275r-aux-mappings.zip mappings_zip]) || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2018/18275r-terminals-prop.pdf L2/18-275R (full],}} [https://www.unicode.org/L2/L2018/18275r-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2018/18275r-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2018/18275r-aux-mappings.zip mappings_zip]) || || {{Citation|title=Proposal to add characters from legacy computers and teletext to the UCS|date=2018-09-06|first1=Doug|last1=Ewell|first2=Rebecca|last2=Bettencourt|first3=Ricardo|last3=Bánffy|first4=Michael|last4=Everson|first5=Eduardo Marín|last5=Silva|first6=Elias|last6=Mårtenson|first7=Mark|last7=Shoulson|first8=Shawn|last8=Steele|first9=Rebecca|last9=Turner|ref=none}} |
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| {{nobr|[https://www.unicode.org/L2/L2018/18300-script-ad-hoc-rec.pdf L2/18-300]}} || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2018/18300-script-ad-hoc-rec.pdf L2/18-300]}} || || {{Citation|title=Recommendations to UTC #157 on Script Proposals|date=2018-09-14|first1=Deborah|last1=Anderson|display-authors=etal|ref=none|section=11}} |
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| {{nobr|[https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf L2/19-025 (full],}} [https://www.unicode.org/L2/L2019/19025-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2019/19025-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2019/19025-aux-mappings.zip mappings_zip]) || [https://www.unicode.org/wg2/docs/n5028-19025-terminals-prop.pdf N5028] || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf L2/19-025 (full],}} [https://www.unicode.org/L2/L2019/19025-terminals-prop-no-attachments.pdf no_attach], [https://www.unicode.org/L2/L2019/19025-aux-LegacyComputingSources.pdf sources], [https://www.unicode.org/L2/L2019/19025-aux-mappings.zip mappings_zip]) || [https://www.unicode.org/wg2/docs/n5028-19025-terminals-prop.pdf N5028] || {{Citation|title=Proposal to add characters from legacy computers and teletext to the UCS|date=2019-01-04|first1=Doug|last1=Ewell|first2=Rebecca|last2=Bettencourt|first3=Ricardo|last3=Bánffy|first4=Michael|last4=Everson|first5=Eduardo Marín|last5=Silva|first6=Elias|last6=Mårtenson|first7=Mark|last7=Shoulson|first8=Shawn|last8=Steele|first9=Rebecca|last9=Turner|ref=none}} |
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| {{nobr|[https://www.unicode.org/L2/L2019/19047-script-adhoc-recs.pdf L2/19-047]}} || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2019/19047-script-adhoc-recs.pdf L2/19-047]}} || || {{Citation|title=Recommendations to UTC #158 January 2019 on Script Proposals|date=2019-01-13|first1=Deborah|last1=Anderson|display-authors=etal|ref=none|section=24}} |
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| {{nobr|[https://www.unicode.org/L2/L2019/19008.htm L2/19-008]}} || || {{Citation |
| {{nobr|[https://www.unicode.org/L2/L2019/19008.htm L2/19-008]}} || || {{Citation|title=UTC #158 Minutes|date=2019-02-08|first=Lisa|last=Moore|ref=none|section=E.2}} |
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| {{nobr|[https://www.unicode.org/L2/L2020/20015.htm L2/20- |
| {{nobr|[https://www.unicode.org/L2/L2020/20015.htm L2/20-015R]}} || || {{Citation|title=Draft Minutes of UTC Meeting 162|date=2020-05-14|first=Lisa|last=Moore|ref=none|section=B.10.17.2}} |
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| colspan="6" | {{reflist|group=lower-alpha|refs=<ref name= |
| colspan="6" | {{reflist|group=lower-alpha|refs=<ref name=final>Proposed code points and characters names may differ from final code points and names</ref>}} |
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==See also== |
==See also== |
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* [[Supplemental Arrows-C]] Unicode block characters {{unichar|1F8B0|ARROW POINTING UPWARDS THEN NORTH WEST}} and {{unichar|1F8B1|ARROW POINTING RIGHTWARDS THEN CURVING SOUTH WEST}} |
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* [[ |
* [[Box-drawing characters]] |
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* [[Dingbat]] |
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* other Unicode blocks |
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** [[Box Drawing]] |
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** [[Block Elements]] |
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** [[Geometric Shapes (Unicode block)|Geometric Shapes]] |
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** [[Halfwidth and Fullwidth Forms (Unicode block)|Halfwidth and Fullwidth Forms]] |
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** [[Supplemental Arrows-C]] |
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==References== |
==References== |
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{{reflist}} |
{{reflist}} |
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== External links == |
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* [https://devblogs.microsoft.com/commandline/cascadia-code-2404-23/ Cascadia Code 2404.23] – release notes for [[Cascadia Code]], which shows the rendering of Symbols for Legacy Computing Supplement characters |
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[[Category:Unicode blocks]] |
[[Category:Unicode blocks]] |
Latest revision as of 10:46, 4 August 2024
Symbols for Legacy Computing | |
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Range | U+1FB00..U+1FBFF (256 code points) |
Plane | SMP |
Scripts | Common |
Assigned | 212 code points |
Unused | 44 reserved code points |
Unicode version history | |
13.0 (2020) | 212 (+212) |
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]
A supplement block was approved in 2022 for inclusion in Unicode 16.0, following proposal L2/21-235.[5] 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.[6]
Block
[edit]Symbols for Legacy Computing[1][2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+1FB0x | 🬀 | 🬁 | 🬂 | 🬃 | 🬄 | 🬅 | 🬆 | 🬇 | 🬈 | 🬉 | 🬊 | 🬋 | 🬌 | 🬍 | 🬎 | 🬏 |
U+1FB1x | 🬐 | 🬑 | 🬒 | 🬓 | 🬔 | 🬕 | 🬖 | 🬗 | 🬘 | 🬙 | 🬚 | 🬛 | 🬜 | 🬝 | 🬞 | 🬟 |
U+1FB2x | 🬠 | 🬡 | 🬢 | 🬣 | 🬤 | 🬥 | 🬦 | 🬧 | 🬨 | 🬩 | 🬪 | 🬫 | 🬬 | 🬭 | 🬮 | 🬯 |
U+1FB3x | 🬰 | 🬱 | 🬲 | 🬳 | 🬴 | 🬵 | 🬶 | 🬷 | 🬸 | 🬹 | 🬺 | 🬻 | 🬼 | 🬽 | 🬾 | 🬿 |
U+1FB4x | 🭀 | 🭁 | 🭂 | 🭃 | 🭄 | 🭅 | 🭆 | 🭇 | 🭈 | 🭉 | 🭊 | 🭋 | 🭌 | 🭍 | 🭎 | 🭏 |
U+1FB5x | 🭐 | 🭑 | 🭒 | 🭓 | 🭔 | 🭕 | 🭖 | 🭗 | 🭘 | 🭙 | 🭚 | 🭛 | 🭜 | 🭝 | 🭞 | 🭟 |
U+1FB6x | 🭠 | 🭡 | 🭢 | 🭣 | 🭤 | 🭥 | 🭦 | 🭧 | 🭨 | 🭩 | 🭪 | 🭫 | 🭬 | 🭭 | 🭮 | 🭯 |
U+1FB7x | 🭰 | 🭱 | 🭲 | 🭳 | 🭴 | 🭵 | 🭶 | 🭷 | 🭸 | 🭹 | 🭺 | 🭻 | 🭼 | 🭽 | 🭾 | 🭿 |
U+1FB8x | 🮀 | 🮁 | 🮂 | 🮃 | 🮄 | 🮅 | 🮆 | 🮇 | 🮈 | 🮉 | 🮊 | 🮋 | 🮌 | 🮍 | 🮎 | 🮏 |
U+1FB9x | 🮐 | 🮑 | 🮒 | 🮔 | 🮕 | 🮖 | 🮗 | 🮘 | 🮙 | 🮚 | 🮛 | 🮜 | 🮝 | 🮞 | 🮟 | |
U+1FBAx | 🮠 | 🮡 | 🮢 | 🮣 | 🮤 | 🮥 | 🮦 | 🮧 | 🮨 | 🮩 | 🮪 | 🮫 | 🮬 | 🮭 | 🮮 | 🮯 |
U+1FBBx | 🮰 | 🮱 | 🮲 | 🮳 | 🮴 | 🮵 | 🮶 | 🮷 | 🮸 | 🮹 | 🮺 | 🮻 | 🮼 | 🮽 | 🮾 | 🮿 |
U+1FBCx | 🯀 | 🯁 | 🯂 | 🯃 | 🯄 | 🯅 | 🯆 | 🯇 | 🯈 | 🯉 | 🯊 | |||||
U+1FBDx | ||||||||||||||||
U+1FBEx | ||||||||||||||||
U+1FBFx | 🯰 | 🯱 | 🯲 | 🯳 | 🯴 | 🯵 | 🯶 | 🯷 | 🯸 | 🯹 | ||||||
Notes |
The image below is provided as quick reference for these symbols on systems that are unable to display them directly:
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Symbols_for_Legacy_Computing_Unicode_block.png/480px-Symbols_for_Legacy_Computing_Unicode_block.png)
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 (2018-04-23), 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 (2018-01-19), "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 (2018-07-20), Proposal to add characters from legacy computers and teletext to the UCS | ||||
L2/18-241 | Anderson, Deborah; et al. (2018-07-20), "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 (2018-09-06), Proposal to add characters from legacy computers and teletext to the UCS | ||||
L2/18-300 | Anderson, Deborah; et al. (2018-09-14), "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 (2019-01-04), Proposal to add characters from legacy computers and teletext to the UCS | |||
L2/19-047 | Anderson, Deborah; et al. (2019-01-13), "24", Recommendations to UTC #158 January 2019 on Script Proposals | ||||
L2/19-008 | Moore, Lisa (2019-02-08), "E.2", UTC #158 Minutes | ||||
L2/20-015R | Moore, Lisa (2020-05-14), "B.10.17.2", Draft Minutes of UTC Meeting 162 | ||||
|
See also
[edit]- Box-drawing characters
- Dingbat
- other Unicode blocks
References
[edit]- ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
- ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
- ^ "Proposal to add characters from legacy computers and teletext to the UCS" (PDF). Retrieved 2020-03-11.
- ^ "Legacy Computing Sources" (PDF). Retrieved 2020-03-11.
- ^ "Proposed New Characters: The Pipeline". www.unicode.org.
- ^ "Proposal to add further characters from legacy computers and teletext to the UCS" (PDF). 2021-12-20.
External links
[edit]- Cascadia Code 2404.23 – release notes for Cascadia Code, which shows the rendering of Symbols for Legacy Computing Supplement characters