DEC Special Graphics
is a 7-bit
character set developed by
Digital Equipment Corporation
Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president unt ...
. This was used very often to draw
boxes
A box (plural: boxes) is a container used for the storage or transportation of its contents. Most boxes have flat, parallel, rectangular sides. Boxes can be very small (like a matchbox) or very large (like a shipping box for furniture), and can ...
on the
VT100 video terminal and the many emulators, and used by bulletin board software. The
designation escape sequence (
hexadecimal
In mathematics and computing, the hexadecimal (also base-16 or simply hex) numeral system is a positional numeral system that represents numbers using a radix (base) of 16. Unlike the decimal system representing numbers using 10 symbols, hexa ...
) switched the codes for lower-case ASCII letters to draw this set, and the sequence (hexadecimal ) switched back.
calls it Code page 1090.
Character set
See also
*
DEC Multinational Character Set
The Multinational Character Set (DMCS or MCS) is a character encoding created in 1983 by Digital Equipment Corporation (DEC) for use in the popular VT220 terminal. It was an 8-bit extension of ASCII that added accented characters, currency symbols ...
(MCS)
*
DEC National Replacement Character Set
The National Replacement Character Set (NRCS) was a feature supported by later models of Digital's (DEC) computer terminal systems, starting with the VT200 series in 1983. NRCS allowed individual characters from one character set to be replaced b ...
(NRCS)
*
DEC Technical Character Set
*
DEC VT100
The VT100 is a video terminal, introduced in August 1978 by Digital Equipment Corporation (DEC). It was one of the first terminals to support ANSI escape codes for cursor control and other tasks, and added a number of extended codes for special f ...
*
Box-drawing character
Footnotes
References
{{character encoding
Character sets
Digital Equipment Corporation