#Synchronous serial terminal program serial
Typically terminals communicate with the computer via a serial port via a null modem cable, often using an EIA RS-232 or RS-422 or RS-423 or a current loop serial interface. IBM 2250 Model 4, including light pen and programmed function keyboardMost terminals were connected to minicomputers or mainframe computers and often had a green or amber screen. Examples include the family of terminal control sequence standards known as ECMA-48, ANSI X3.64 or ISO/IEC 6429.
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Terminals usually support a set of escape sequences for controlling color, cursor position, etc. On Unix-like operating systems, it is common to have one or more terminal windows connected to the local machine. These may be running either on the same machine or on a different one via telnet, ssh, dial-up, or over a direct serial connection. A terminal emulator inside a graphical user interface is often called a terminal window.Ī terminal window allows the user access to a text terminal and all its applications such as command-line interfaces (CLI) and text user interface (TUI) applications.
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Though typically synonymous with a shell or text terminal, the term terminal covers all remote terminals, including graphical interfaces. Windows Terminal, an open-source terminal emulator for Windows 10 and Windows 11Ī terminal emulator, terminal application, or term, is a computer program that emulates a video terminal within some other display architecture.