![]() ![]() Konsole too is often built with support for 16 colors. Rxvt is often built with support for 16 colors. You can try to set TERM to either xterm-16color, xterm-88color, or xterm-256color. It can also be built with support for 88 or 256 colors (but not both). Xterm is in most cases built with support for 16 colors. It can be worth setting the TERM variable to a different value in these cases: Often, however, the text window supports 16 or more colors, even though the TERM variable is set to a identifier denoting only 8 supported colors. #DIFFERENCES BETWEEN XTERM AND PTERM WINDOWS#Text windows today typically support at least 8 colors. When producing text with embedded color directives, msgcat looks at the TERM variable. You can get a detailed list of these cababilities by using the > ‘infocmp’ command, using ‘man 5 terminfo’ as a reference. The environment variable TERM contains a identifier for the text window’sĬapabilities. And can be piped, abstracted and moved about in the same way.The environment variable TERM does not mean the terminal you are using. ), after all, the human-computer interface acts just like any other file. x-forwarding, using the telnet protocol to act as a terminal. This abstraction can be nested even deeper (e.g. The difference between TTY1-7 and gnome-terminal is that the system provides the ttys, whereas gnome-terminal and konsole are themselves running on a tty (which is running the graphical subsystem). Now, it saves money and makes administration easy.Ī "thin client" – the modern equivalent of the VT100 In the past, the reason for terminals was that a computer at every desk was completely ridiculous - where computers filled a room and were immensely expensive. They are in fact getting ever more popular. There are still terminal based computer systems in use. When we say terminal emulator these days, we - in turn - usually mean a program that emulates the functionality of such a machine. Terminals, such as the one pictured above, are cheap and simple computers that emulate the functionality of a teletype. You can imagine that a Modem works in a very similar way. The Teletype workstations would have been called "Consoles" or "Terminals", a virtual terminal, as opposed to a real one, thus is any application or machinery that provides the same functionality as this workplace arrangement - which is accessing the computer by sending keystrokes to it and receiving output back from it, printing it to a piece of paper. This would have represented a physical device, a remote typewriter, in the same way as /dev/lp0 may represent your printer. A Typewriter that sends keystrokes to a computer, which in turn sends letters back to the Type Ball. That means, for example, your DVD Drive is a file (/dev/sdb1), your keyboard is a file (/dev/input/keyboard) and so on.Īnother set of those magical files are the TTYs, where TTY stands for Teletype. In a Unix–like system such as Linux there is the concept of "everything is a file". This is a basic input → processing → output system, and is at the heart of your operating system. Virtual Terminals are merely programs that send keystrokes and receive output (this is called Standard In, Standard Out) to a process in the background. My understanding is that virtual terminals basically serve the same purpose: ![]()
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