Terminal capabilities

<p>In computing and telecommunications, the capabilities of a <a href="/facts/Terminal_(telecommunication)/GTHNGWI5">terminal</a> are various terminal features, above and beyond what is available from a pure <a href="/facts/Teletypewriter/pn5SQKTf">teletypewriter</a>, that host systems (and the programs that run on them) can make use of.  They are (mainly) of <a href="/facts/Control_code/jkWgHvfC">control codes</a> and <a href="/facts/Escape_code/r7lISrrw">escape codes</a> that can be sent to or received from the terminal.  The escape codes sent to the terminal perform various functions that a <a href="/facts/Cathode_ray_tube/8NVGx5C7">CRT</a> terminal (and software <a href="/facts/Terminal_emulator/yNfevBJd">terminal emulators</a>) is capable of, but that a teletypewriter is not; such as moving the terminal's cursor to positions on the screen, clearing and scrolling all or parts of the screen, turning on and off attached printer devices, programming programmable function keys, changing display colours and attributes (such as <a href="/facts/Reverse_video/KrML9x2r">reverse video</a>), and setting display title strings.  The escape codes received from the terminal signify things such as <a href="/facts/Function_key/30YcfK7U">function key</a>, <a href="/facts/Arrow_key/N3I7nswn">arrow key</a>, and other special key (<a href="/facts/Home_key/9DerMuxf">home key</a>, <a href="/facts/End_key/4TadlDDJ">end key</a>, <a href="/facts/Help_key/QqNGy5ya">help key</a>, <a href="/facts/PgUp_key/h45Ly1JI">PgUp key</a>, <a href="/facts/PgDn_key/h45Ly1JI">PgDn key</a>, <a href="/facts/Insert_key/ekEayhyG">insert key</a>, <a href="/facts/Delete_key/4UzvEgvN">delete key</a>, and so forth) <a href="/facts/Typing/HyjnNen9">keystrokes</a>.
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Terminal capabilities open-in-new

Terminal capabilities