Symbols for Legacy Computing Supplement is a

Unicode block A Unicode block is one of several contiguous ranges of numeric character codes (code points) of the Unicode character set that are defined by the Unicode Consortium for administrative and documentation purposes. Typically, proposals such as the ...

containing additional

graphic character In ISO/IEC 646 (commonly known as ASCII) and related standards including ISO 8859 and Unicode, a graphic character, also known as printing character (or printable character), is any character intended to be written, printed, or otherwise display ...

s that were used for various

home computer Home computers were a class of microcomputers that entered the market in 1977 and became common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a s ...

s from the 1970s and 1980s, extending the set of characters provided by the

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 Aqua ...

block. It includes characters from

Amstrad CPC The Amstrad CPC (short for "Colour Personal Computer") is a series of 8-bit home computers produced by Amstrad between 1984 and 1990. It was designed to compete in the mid-1980s home computer market dominated by the Commodore 64 and the ZX Spec ...

, Apple 8-bit,

Kaypro Kaypro Corporation was an American home and personal computer manufacturer based in Solana Beach, California, in the 1980s. The company was founded by Non-Linear Systems (NLS) to compete with the popular Osborne 1 portable microcomputer. Kaypro ...

CP/M,

Mattel Aquarius The Aquarius is a home computer designed by ''Radofin'' and released by ''Mattel Electronics'' in 1983. Based on the Zilog Z80 microprocessor, the system has a rubber chiclet keyboard, 4 kB of RAM, and a subset of Microsoft BASIC in ROM. It conn ...

, Ohio Scientific, Robotron KC,

Sharp MZ The Sharp MZ is a series of personal computers sold in Japan and Europe (particularly Germany and Great Britain) by Sharp Corporation, Sharp beginning in 1978. History Although commonly believed to stand for "Microcomputer Zilog Z80, Z80", t ...

computers, HP terminals, and

TRS-80 The TRS-80 Micro Computer System (TRS-80, later renamed the Model I to distinguish it from successors) is a desktop microcomputer developed by American company Tandy Corporation and sold through their Radio Shack stores. Launched in 1977, it is ...

. It includes a set of

semigraphics Text-based semigraphics, pseudographics, or character graphics is a primitive method used in early text mode video hardware to emulate raster graphics without having to implement the logic for such a display mode. There are two different ways ...

in the form of 230 "octant" characters, large images split into four "characters", and the "large type" characters used for building large text characters.

Block

History

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

Implementation

The glyphs for the ''Symbols for Legacy Computing Supplement'' block have been added to the

Cascadia Code Cascadia Code is a purpose-built monospaced TrueType font for Windows Terminal. It includes programming ligatures and was designed to enhance the look and feel of Windows Terminal, terminal applications and text editors such as Visual Studio and ...

(2404.03 release or later),

GNU Unifont GNU Unifont is a free Unicode bitmap font created by Roman Czyborra. The main Unifont covers all of the Basic Multilingual Plane (BMP). The "upper" companion covers significant parts of the Supplementary Multilingual Plane (SMP). The "Unifont J ...

(version 16.0.01 or higher) and

Iosevka This list of monospaced typefaces details standard monospaced fonts used in classical typesetting and printing Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involv ...

fonts.

References

{{reflist

External links

Cascadia Code 2404.23
– release notes for

, which shows the rendering of Symbols for Legacy Computing Supplement characters Unicode blocks

Block

History

Implementation

See also

References

External links