Symbols for Legacy Computing Supplement

{{Multiple issues|

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{{Infobox Unicode block

|blockname = Symbols for Legacy Computing Supplement

|rangestart = 1CC00

|rangeend = 1CEBF

|script1 = Common

|16_0 = 686

|note = {{Cite web|url=https://www.unicode.org/ucd/|title=Unicode character database|work=The Unicode Standard|access-date=2024-09-10}}{{Cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|access-date=2024-09-10}}

}}

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.{{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}}

Block

{{Contains special characters|Uncommon Unicode|section=table|fix=Symbols for Legacy Computing Supplement#Implementation}}

History

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

Version	{{nobr\|Final code points}}	Count	L2 ID	Document
class="wikitable sticky-header"
rowspan="11" \| 16.0	rowspan="8" \| U+1CC00..1CCF9, 1CD00..1CEAF	rowspan="8" \| 682	{{nobr\|[https://www.unicode.org/L2/L2021/21235-terminals-supplement.pdf L2/21-235 (full],}} [https://www.unicode.org/L2/L2021/21235-terminals-supplement-noattach.pdf no_attach], [https://www.unicode.org/L2/L2021/21235-terminals-supplement-sources.pdf sources], [https://www.unicode.org/L2/L2021/21235-terminals-supplement-mappings.zip mappings_zip])	{{Citation\|title=Proposal to add further characters from legacy computers and teletext to the UCS\|date=2021-12-20\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|author-link4=Michael Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22023-script-adhoc-rept.pdf L2/22-023]}}	{{Citation\|title=Recommendations to UTC #170 January 2022 on Script Proposals\|date=2022-01-22\|first1=Deborah\|last1=Anderson\|first2=Ken\|last2=Whistler\|first3=Roozbeh\|last3=Pournader\|first4=Peter\|last4=Constable\|ref=none\|section=17 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2021/21235r-terminals-supplement.pdf L2/21-235R (full],}} [https://www.unicode.org/L2/L2021/21235r-terminals-supplement-noattach.pdf no_attach])	{{Citation\|title=Proposal to add further characters from legacy computers and teletext to the UCS\|date=2022-01-26\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22016.htm L2/22-016]}}	{{Citation\|title=UTC #170 Minutes\|date=2022-04-21\|first=Peter\|last=Constable\|ref=none\|section=D.1 17 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2023/23012-script-adhoc-rept.pdf L2/23-012]}}	{{Citation\|title=Recommendations to UTC #174 January 2023 on Script Proposals\|date=2023-01-17\|first1=Deborah\|last1=Anderson\|display-authors=etal\|ref=none\|section=10 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2023/23005.htm L2/23-005]}}	{{Citation\|title=UTC #174 Minutes\|date=2023-02-01\|first=Peter\|last=Constable\|ref=none\|section=Consensus 174-C24\|quote=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}}
{{nobr\|[https://www.unicode.org/L2/L2023/23164-script-adhoc-rept.pdf L2/23-164]}}	{{Citation\|title=Recommendations to UTC #176 July 2023 on Script Proposals\|date=2023-07-21\|first1=Deborah\|last1=Anderson\|first2=Jan\|last2=Kučera\|first3=Ken\|last3=Whistler\|first4=Roozbeh\|last4=Pournader\|first5=Peter\|last5=Constable\|ref=none\|section=13 Symbols for Legacy Computers Supplement}}
{{nobr\|[https://www.unicode.org/L2/L2023/23157.htm L2/23-157]}}	{{Citation\|title=UTC #176 Minutes\|date=2023-07-31\|first=Peter\|last=Constable\|ref=none\|section=Consensus 176-C37\|quote=Change the name of U+1CE07 TOP RIGHT BLACK LEFT-POINTING SMALL TRIANGLE to TOP LEFT BLACK LEFT-POINTING SMALL TRIANGLE}}
rowspan="3" \| U+1CEB0..1CEB3	rowspan="3" \| 4	{{nobr\|[https://www.unicode.org/L2/L2021/21234-terminals-smalltalk.pdf L2/21-234 (full],}} [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-noattach.pdf no_attach], [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-sources.pdf sources], [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-mappings.zip mappings_zip])	{{Citation\|title=Proposal to add characters from Smalltalk to the UCS\|date=2021-12-20\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22023-script-adhoc-rept.pdf L2/22-023]}}	{{Citation\|title=Recommendations to UTC #170 January 2022 on Script Proposals\|date=2022-01-22\|first1=Deborah\|last1=Anderson\|first2=Ken\|last2=Whistler\|first3=Roozbeh\|last3=Pournader\|first4=Peter\|last4=Constable\|ref=none\|section=20 Smalltalk}}
{{nobr\|[https://www.unicode.org/L2/L2022/22016.htm L2/22-016]}}	{{Citation\|title=UTC #170 Minutes\|date=2022-04-21\|first=Peter\|last=Constable\|ref=none\|section=Consensus 170-C17\|quote=UTC accepts ... 5 Smalltalk symbols}}
class="sortbottom" \| colspan="5" \| {{reflist\|group=lower-alpha\|refs=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),{{Cite web |last=Nguyen |first=Christopher |date=2024-04-30 |title=Cascadia Code 2404.23 |url=https://devblogs.microsoft.com/commandline/cascadia-code-2404-23/ |access-date=2024-10-17 |website=Windows Command Line |language=en-US}} GNU Unifont (version 16.0.01 or higher){{Cite web |title=Release Notes - 10 September 2024 (Unifont 16.0.01) - GNU Unifont Glyphs |url=https://www.unifoundry.com/unifont/index.html |access-date=2024-10-17 |website=www.unifoundry.com}} and Iosevka{{since when|date=March 2025|reason=apparently from version 28.1.0 through 33.0.1, per https://github.com/be5invis/Iosevka/releases -- so should we cite when the addition was complete, and is that as of version 33.0.1?}}{{Cite web |title=Symbols For Legacy Computing Supplement - Iosevka Specimen |url=https://typeof.net/Iosevka/specimen#specimen-block--Symbols--For--Legacy--Computing--Supplement |access-date=2024-10-17 |website=typeof.net}} fonts.

References

External links

[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

Category:Unicode blocks

Version	{{nobr\|Final code points}}	Count	L2 ID	Document
class="wikitable sticky-header"
rowspan="11" \| 16.0	rowspan="8" \| U+1CC00..1CCF9, 1CD00..1CEAF	rowspan="8" \| 682	{{nobr\|[https://www.unicode.org/L2/L2021/21235-terminals-supplement.pdf L2/21-235 (full],}} [https://www.unicode.org/L2/L2021/21235-terminals-supplement-noattach.pdf no_attach], [https://www.unicode.org/L2/L2021/21235-terminals-supplement-sources.pdf sources], [https://www.unicode.org/L2/L2021/21235-terminals-supplement-mappings.zip mappings_zip])	{{Citation\|title=Proposal to add further characters from legacy computers and teletext to the UCS\|date=2021-12-20\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|author-link4=Michael Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22023-script-adhoc-rept.pdf L2/22-023]}}	{{Citation\|title=Recommendations to UTC #170 January 2022 on Script Proposals\|date=2022-01-22\|first1=Deborah\|last1=Anderson\|first2=Ken\|last2=Whistler\|first3=Roozbeh\|last3=Pournader\|first4=Peter\|last4=Constable\|ref=none\|section=17 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2021/21235r-terminals-supplement.pdf L2/21-235R (full],}} [https://www.unicode.org/L2/L2021/21235r-terminals-supplement-noattach.pdf no_attach])	{{Citation\|title=Proposal to add further characters from legacy computers and teletext to the UCS\|date=2022-01-26\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22016.htm L2/22-016]}}	{{Citation\|title=UTC #170 Minutes\|date=2022-04-21\|first=Peter\|last=Constable\|ref=none\|section=D.1 17 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2023/23012-script-adhoc-rept.pdf L2/23-012]}}	{{Citation\|title=Recommendations to UTC #174 January 2023 on Script Proposals\|date=2023-01-17\|first1=Deborah\|last1=Anderson\|display-authors=etal\|ref=none\|section=10 Legacy Computing Symbols}}
{{nobr\|[https://www.unicode.org/L2/L2023/23005.htm L2/23-005]}}	{{Citation\|title=UTC #174 Minutes\|date=2023-02-01\|first=Peter\|last=Constable\|ref=none\|section=Consensus 174-C24\|quote=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}}
{{nobr\|[https://www.unicode.org/L2/L2023/23164-script-adhoc-rept.pdf L2/23-164]}}	{{Citation\|title=Recommendations to UTC #176 July 2023 on Script Proposals\|date=2023-07-21\|first1=Deborah\|last1=Anderson\|first2=Jan\|last2=Kučera\|first3=Ken\|last3=Whistler\|first4=Roozbeh\|last4=Pournader\|first5=Peter\|last5=Constable\|ref=none\|section=13 Symbols for Legacy Computers Supplement}}
{{nobr\|[https://www.unicode.org/L2/L2023/23157.htm L2/23-157]}}	{{Citation\|title=UTC #176 Minutes\|date=2023-07-31\|first=Peter\|last=Constable\|ref=none\|section=Consensus 176-C37\|quote=Change the name of U+1CE07 TOP RIGHT BLACK LEFT-POINTING SMALL TRIANGLE to TOP LEFT BLACK LEFT-POINTING SMALL TRIANGLE}}
rowspan="3" \| U+1CEB0..1CEB3	rowspan="3" \| 4	{{nobr\|[https://www.unicode.org/L2/L2021/21234-terminals-smalltalk.pdf L2/21-234 (full],}} [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-noattach.pdf no_attach], [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-sources.pdf sources], [https://www.unicode.org/L2/L2021/21234-terminals-smalltalk-mappings.zip mappings_zip])	{{Citation\|title=Proposal to add characters from Smalltalk to the UCS\|date=2021-12-20\|first1=Rebecca\|last1=Bettencourt\|first2=Doug\|last2=Ewell\|first3=Ricardo\|last3=Bánffy\|first4=Michael\|last4=Everson\|first5=Jarkko\|last5=Hietaniemi\|first6=Eduardo Marín\|last6=Silva\|first7=Elias\|last7=Mårtenson\|first8=Mark\|last8=Shoulson\|first9=Shawn\|last9=Steele\|first10=Rebecca\|last10=Turner\|ref=none}}
{{nobr\|[https://www.unicode.org/L2/L2022/22023-script-adhoc-rept.pdf L2/22-023]}}	{{Citation\|title=Recommendations to UTC #170 January 2022 on Script Proposals\|date=2022-01-22\|first1=Deborah\|last1=Anderson\|first2=Ken\|last2=Whistler\|first3=Roozbeh\|last3=Pournader\|first4=Peter\|last4=Constable\|ref=none\|section=20 Smalltalk}}
{{nobr\|[https://www.unicode.org/L2/L2022/22016.htm L2/22-016]}}	{{Citation\|title=UTC #170 Minutes\|date=2022-04-21\|first=Peter\|last=Constable\|ref=none\|section=Consensus 170-C17\|quote=UTC accepts ... 5 Smalltalk symbols}}
class="sortbottom" \| colspan="5" \| {{reflist\|group=lower-alpha\|refs=Proposed code points and characters names may differ from final code points and names}}