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VT52 codes remained proprietary to DEC, although a number of other companies provided emulations in their terminals. Later VT series terminals supported a subset of these commands. One interesting case is the GEMDOS system and its offshoot, the TOS operating system of the Atari ST .
The Gold Key is used to invoke single-key functions which may be located on either the main keyboard or the numeric keypad. For example, on the WPS-8 word processing system, the main keyboard key C is marked "CENTR", in gold lettering, on its front surface; the keystrokes GOLD C invoke that word processing function to center the current line of text.
In addition, the VT100 provided backwards compatibility for VT52-compatible software, by also supporting the older control sequences. [4] Other improvements beyond the VT52 included a 132-column mode, and a variety of "graphic renditions" including blinking, bolding, reverse video , underlining, and lines of double-sized or double-width characters.
The VT520 is an ANSI standard computer terminal introduced by Digital Equipment Corporation (DEC) in 1993 and 1994. [1] The VT520 is a multi-session monochrome text-only terminal with a built-in 14" monitor.
DEC Special Graphics [1] is a 7-bit character set developed by Digital Equipment Corporation.This was used very often to draw boxes on the VT100 video terminal and the many emulators, and used by bulletin board software.
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 by one from another set, allowing the construction of different character sets on the
The Xterm terminal emulator. In the early 1980s, large amounts of software directly used these sequences to update screen displays. This included everything on VMS (which assumed DEC terminals), most software designed to be portable on CP/M home computers, and even lots of Unix software as it was easier to use than the termcap libraries, such as the shell script examples below in this article.
DEC VT78 Video Data Processor: a PDP-8 built into a VT52 body. DECmate was the name of a series of PDP-8-compatible computers produced by the Digital Equipment Corporation in the late 1970s and early 1980s.