{"id":972,"date":"2017-03-20T10:53:10","date_gmt":"2017-03-20T05:23:10","guid":{"rendered":"https:\/\/www.wikitechy.com\/technology\/?p=972"},"modified":"2017-03-29T12:44:11","modified_gmt":"2017-03-29T07:14:11","slug":"exact-difference-terminal-shell-tty-console","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/technology\/exact-difference-terminal-shell-tty-console\/","title":{"rendered":"What is the exact difference between a ‘terminal’, a ‘shell’, a ‘tty’ and a ‘console\u2018"},"content":{"rendered":"

Terminal:<\/strong><\/span><\/h4>\n
    \n
  • A physical device that was connected to a computer to give access to a shell. you would have a large mainframe computer with many “dumb terminals” connected to it – they had no computing abilities themselves, they just sent keystrokes to the mainframe and displayed the text that was returned.<\/li>\n<\/ul>\n
      \n
    • “<\/b>terminal<\/b>” usually refers to a\u00a0terminal emulator\u00a0program, which provides the window that displays the shell and allows you to interact with it.<\/li>\n<\/ul>\n
        \n
      • The word terminal can also have a more traditional meaning of a device through which one interacts with a computer, typically with a keyboard and display.<\/li>\n<\/ul>\n
          \n
        • A\u00a0terminal<\/b>\u00a0or a\u00a0console<\/b>\u00a0is a piece of hardware, using which a user can interact with a host.<\/li>\n<\/ul>\n

          Shell:<\/strong><\/span><\/h4>\n
            \n
          • The shell is a program which is used for controlling and running programs. It is often used interactively, via a terminal.<\/li>\n<\/ul>\n
              \n
            • The shell<\/b> and the terminal emulator <\/b>are two separate programs; the terminal emulator displays text from the shell (and any programs you run from the shell), and sends your typing to the shell.<\/li>\n<\/ul>\n
                \n
              • shell<\/b>\u00a0is a special program that interacts with a user through a\u00a0controlling tty<\/b>\u00a0and offers, to the user, the way of launching other programs (e.g. bash, csh, tcsh).<\/li>\n<\/ul>\n
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                TTY: \u00a0<\/strong><\/span><\/h4>\n
                  \n
                • TTY short for \u00a0<\/b>TeleTYpewriter<\/b>..<\/li>\n<\/ul>\n
                    \n
                  • On the computer, this terminal was presented as a “TTY device”.\u00a0 Linux still uses TTY (or PTY, pseudo-tty) devices through which a shell can interact with a terminal emulator or console.<\/li>\n<\/ul>\n
                      \n
                    • A\u00a0terminal<\/b>\u00a0or a\u00a0console<\/b>\u00a0is a piece of hardware, using which a user can interact with a host.<\/li>\n<\/ul>\n

                      Console:<\/strong><\/span><\/h4>\n
                        \n
                      • A\u00a0console<\/b>\u00a0must be a piece of hardware physically connected to (or part of) the host. It has a special role in the system: it is the main point to access a system for maintenance and some special operation can be done only from a console (e.g. see\u00a0single user mode).<\/li>\n<\/ul>\n
                          \n
                        • Console,sometimes used equivalent to “terminal\u201d<\/li>\n<\/ul>\n
                            \n
                          • The Linux system has several text-mode “virtual consoles”, essentially built in terminal emulators that can be switched between using a key combination.<\/li>\n<\/ul>\n
                              \n
                            • Consoles 1 to 6 usually present a text login prompt; logging in will give you a shell. The familiar Linux graphical desktop runs on console 7 or 8 (depending on your Linux distribution)<\/li>\n<\/ul>\n
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                              Terminal: A physical device that was connected to a computer to give access to a shell. you would have a large mainframe computer with many “dumb terminals” connected to it – they had no computing abilities themselves, they just sent keystrokes to the mainframe and displayed the text that was returned. “terminal” usually refers to […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1331],"tags":[1844,1845,1835,1850,1851,1846,1839,1847,1834,1841,1837,1840,1836,1848,1838,1842,1843,1849,1833],"class_list":["post-972","post","type-post","status-publish","format-standard","hentry","category-unix","tag-a-shell","tag-a-tty","tag-difference-between-console-and-terminal-in-linux","tag-how-is-sudo-interrupted-in-xterm-on-ctrl-c","tag-is-the-shell-a-frontend-to-the-terminal","tag-pseudoterminal-concept-in-linux","tag-terminal-console-for-windows","tag-terminal-vs-terminal-emulator","tag-tty-linux","tag-tty-linux-command","tag-tty-linux-tutorial","tag-tty-stands-for","tag-tty-terminal","tag-what-exactly-is-terminal-what-is-shell","tag-what-is-a-terminal-computer","tag-what-is-the-console-actually-used-for","tag-what-is-the-exact-difference-between-a-terminal","tag-what-really-is-bash-or-any-linux-shell","tag-whats-the-difference-between-the-tty-and-the-gnome-terminal"],"_links":{"self":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts\/972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/comments?post=972"}],"version-history":[{"count":0,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts\/972\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/media?parent=972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/categories?post=972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/tags?post=972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}