stringtranslate.com

Symbols for Legacy Computing

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

<?>
This table contains uncommon Unicode characters. Without proper rendering support, you may see question marks, boxes, or other symbols instead of the intended characters.

The image below is provided as quick reference for these symbols on systems that are unable to display them directly:

History

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

See also

References

  1. ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
  2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
  3. ^ "Proposal to add characters from legacy computers and teletext to the UCS" (PDF). Retrieved 2020-03-11.
  4. ^ "Legacy Computing Sources" (PDF). Retrieved 2020-03-11.
  5. ^ "Proposed New Characters: The Pipeline". www.unicode.org.
  6. ^ "Proposal to add further characters from legacy computers and teletext to the UCS" (PDF). 2021-12-20.

External links