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Encyclopedia > Terminal emulator

A terminal emulator, terminal application, term, or tty for short, is a program that emulates a "dumb" video terminal within some other display architecture. Though typically synonymous with a command line shell or text terminal, the term terminal covers all remote terminals, including graphical interfaces. A terminal emulator inside a graphical user interface is often called a terminal window. Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (1280 × 800 pixel, file size: 623 KB, MIME type: image/jpeg) mutt and vlcs ncurses interface I, the creator of this work, hereby release it into the public domain. ... Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (1280 × 800 pixel, file size: 623 KB, MIME type: image/jpeg) mutt and vlcs ncurses interface I, the creator of this work, hereby release it into the public domain. ... Apple Inc. ... Terminal is an application included with Apples Mac OS X operating system. ... A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying data from, a computer or a computing system. ... In computing, a shell is a piece of software that provides an interface for users (command line interpreter). ... A typical text terminal produces input and displays output and errors A text terminal or often just terminal (sometimes text console) is a serial computer interface for text entry and display. ... A graphical user interface (or GUI, often pronounced gooey), is a particular case of user interface for interacting with a computer which employs graphical images and widgets in addition to text to represent the information and actions available to the user. ...


A terminal window allows the user access to text terminal and all its applications such as command-line interfaces (CLI) and text user interface applications. These may be running either on the same machine or on a different one via telnet, ssh, or dial-up. On Unix-like operating systems it is common to have one or more terminal windows connected to the local machine. A typical text terminal produces input and displays output and errors A text terminal or often just terminal (sometimes text console) is a serial computer interface for text entry and display. ... A command line interface or CLI is a method of interacting with a computer by giving it lines of textual commands (that is, a sequence of characters) either from keyboard input or from a script. ... TUI (Text User Interface) is a retronym that was coined sometime after the invention of graphical user interfaces, to distinguish them from text based user interfaces. ... TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network (LAN) connections. ... In computing, Secure shell, or SSH, is both a computer program and an associated network protocol designed for logging into and executing commands on a remote computer. ... In telecommunication, the term dial-up has the following meanings: Dial-up access, typically to the Internet A service feature in which a user initiates service on a previously arranged trunk or transfers, without human intervention, from an active trunk to a standby trunk. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ...


Terminals usually support a set of escape sequences for controlling color, cursor position, etc. Examples include the family of terminal control sequence standards known as ECMA-48, ANSI X3.64 or ISO/IEC 6429. An escape sequence is a series of characters used to trigger some sort of command state in computers and their attached peripherals. ... A typical arrow-like mouse cursor. ... The VT100 was a video terminal made by Digital Equipment Corporation (DEC) which became the de facto standard used by terminal emulators. ... The VT100 was a video terminal made by Digital Equipment Corporation (DEC) which became the de facto standard used by terminal emulators. ...


Example programs providing the remote-access form of terminal emulation under Microsoft Windows include the built-in programs HyperTerminal and Microsoft's telnet client, as well as 3rd party programs like PuTTY, AlphaCom, SSH, z/Scope Express VT, Tera Term, SwitchTermJ, SecureCRT and Access*One. For Windows CE and Windows Mobile there are products like MochaSoft, Access*One and NaurTech. A so-called "DOS box" or "Command prompt" is the Windows equivalent of a locally-connected terminal window (in fact, it is a Win32 console). MS-DOS examples include ProComm, Qmodem, Telemate and Telix. Microsoft Windows is the name of several families of proprietary software operating systems by Microsoft. ... HyperTerminal is a communications program bundled with multiple versions of the Microsoft Windows operating system. ... TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network (LAN) connections. ... PuTTY is a free SSH, Telnet, rlogin, and raw TCP client. ... AlphaCom is a robust multi-session terminal emulator for Microsoft Windows 9x/ME/NT/2000/2003/XP. It supports SSH, Telnet, direct RS-232, dial-up modem, file transfer, dynamic font sizing, auto-login, and much more. ... In computing, Secure shell, or SSH, is both a computer program and an associated network protocol designed for logging into and executing commands on a remote computer. ... Tera Term is open source free software terminal emulator (communication program) for MS-Windows. ... It has been suggested that this article or section be merged into cmd. ... Microsofts disk operating system, MS-DOS, was Microsofts implementation of DOS, which was the first popular operating system for the IBM PC, and until recently, was widely used on the PC compatible platform. ... Wikipedia does not have an article with this exact name. ...

xterm, a popular terminal emulator designed for X11.
xterm, a popular terminal emulator designed for X11.

The ubiquitous Unix terminal window is used for both local and remote access; where the connection goes is not the business of the terminal emulator itself, it just communicates through a pseudo terminal interface. Apple Computer ships Terminal with Mac OS X as its default terminal emulator. Many different terminal emulators are available for the X Window System, like aterm, dtterm, Eterm, GNOME Terminal, Konsole, rxvt, mrxvt, wterm, SwitchTerm, TeemTalk and xterm. Image File history File links Xterm. ... Image File history File links Xterm. ... xterm is the standard terminal emulator for the X Window System. ... In computing, the X Window System (commonly X11 or X) is a windowing system for bitmap displays. ... Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIX®) is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ... Overview In Unix, a pseudo terminal is a kernel device pair that simulates an ordinary terminal but without the associated terminal hardware. ... Apple Inc. ... Terminal is an application included with Apples Mac OS X operating system. ... Mac OS X (official IPA pronunciation: ) is a line of proprietary, graphical operating systems developed, marketed, and sold by Apple Inc. ... KDE 3. ... The title given to this article is incorrect due to technical limitations. ... Eterm is a color vt102 terminal emulator for the X Window System. ... GNOME terminal, also identified as gnome-terminal, is a terminal emulator written by Havoc Pennington and others. ... Konsole is a free terminal emulator for the KDE Desktop Environment. ... The title given to this article is incorrect due to technical limitations. ... The mrxvt program is a terminal emulator for X Window System. ... xterm is the standard terminal emulator for the X Window System. ...


Early adopters of computer technology, such as banks, insurance companies, and governments, still make frequent use of terminal emulators. They typically have decades old applications running on mainframe computers. The old “dumb” video terminals used to access the mainframe are long since obsolete; however, applications on the mainframe are still in use. Quite often, terminal emulators are the only way a user can access applications running on these older machines. A BlueGene supercomputer cabinet. ... This article or section does not adequately cite its references or sources. ...


Raw and cooked input/output

On Unix-like systems, at the level of the terminal or terminal emulator an individual keypress sends an individual code from the character set in use. Also, carriage return and line feed are distinct operations. In raw mode, text passes directly from the terminal or PTY (a device node that a program wishing to emulate a terminal binds to) to the TTY device. In cooked mode a number of changes are made as the data pass between the terminal or PTY and the TTY: The application gets complete lines of input at once neatly terminated with a line feed and can send just a linefeed when it wants a new line. Also, text typed is echoed back to the user. When a program is started, terminal is generally in cooked mode which allows easy input and output of text, but applications that want more control will often put the terminal into raw mode, or a slightly more processed rare mode. The individual characteristics of cooked mode can also be turned on and off individually which may be desirable to some applications. Originally, carriage return was the term for the key, lever, or mechanism on a typewriter that would cause the cylinder on which the paper was held (the carriage) to return to the left side of the paper after a line of text had been typed, and would often move it... In computing, line feed (LF) is a control character indicating that one line should be fed out. ... Overview In Unix, a pseudo terminal is a kernel device pair that simulates an ordinary terminal but without the associated terminal hardware. ... Node may mean: Node (botany), the place on a plant stem where a leaf is attached Node (physics), a spatial locus along a standing wave where the wave has minimal amplitude Node (networking), a device connected to a network, such as a computer or router Node (computer science), a basic... In Unix-based operating systems, cooked mode is the normal character-input mode, with interrupts enabled and with erase, kill and other special-character interpretations performed directly by the tty driver. ... In Unix-based operating systems, cooked mode is the normal character-input mode, with interrupts enabled and with erase, kill and other special-character interpretations performed directly by the tty driver. ... Rare mode, or formally, cbreak mode is a line discipline in Unix, between raw mode and cooked mode. ...


See also

An online service provider can include internet service providers and web sites, such as Wikipedias or Usenet (commonly accessed through Google Groups). ... The VT100 was a video terminal made by Digital Equipment Corporation (DEC) which became the de facto standard used by terminal emulators. ...

External links

  • The Simtel MS-DOS collection of Terminal Programs

  Results from FactBites:
 
Terminal Emulator (ZOC) - What are Terminal Emulators and How Can They Help You? (934 words)
The dumb terminals were fairly simple devices which consisted of a screen, a keyboard, and the technology that allowed them to transmit keystrokes to and receive output from the server.
The ZOC Terminal Emulator is a remarkably powerful terminal emulator because it supports the standards of several manufacturers (vt100, vt220, 3270, Ansi, Linux/Xterm, Wyse, to name just a few), and allows users to access virtually any server that requires the use of a terminal or terminal emulator.
This terminal emulator takes advantage of the computing power of a PC to allow you to automate tasks (such as logging on or retrieving data automatically), log sessions on screen or file (for documentation or later review), copy data between a text processor and the remote server, and much more.
Terminal emulator - Wikipedia, the free encyclopedia (552 words)
A terminal emulator, terminal application, term, or tty for short, is a program that emulates a "dumb" video terminal within some other display architecture.
A terminal emulator inside a graphical user interface is often called a terminal window.
The ubiquitous Unix terminal window is used for both local and remote access; where the connection goes is not the business of the terminal emulator itself, it just communicates through a pseudo terminal interface.
  More results at FactBites »

 
 

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