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Touchmaster Five with carriage return lever at left. Originally, the term "carriage return" referred to a mechanism or lever on a typewriter.For machines where the type element was fixed and the paper held in a moving carriage, this lever was on the left attached to the moving carriage, and operated after typing a line of text to cause the carriage to return to the far right so the type ...
Another is Mathematica, where the Return key creates a new line, while the Enter key (or Shift-Return) submits the current command for execution. Historically, many computer models did not have a separate keypad, and only had one button to function as Enter or Return. For example, the Commodore 64 (manufactured from 1982) had only the "Return ...
Carriage return was done by a non-stretch very durable textile tape attached to the platen advance mechanism at the left of the carriage. For a return, the tape wound up on a small reel operated from the drive system through a clutch. A cam engaged the clutch; it was disengaged by the left margin stop, perhaps directly, perhaps via another cam.
Often, it will also cause a carriage return. The form feed character code is defined as 12 (0xC in hexadecimal ), and may be represented as Ctrl + L or ^L . In a related use, Ctrl + L can be used to clear the screen in Unix shells such as bash , or redraw screen in TUI programs like vi/emacs.
The purpose of the enter key is to confirm what has been typed. The return key is based on the original line feed/carriage return function of typewriters: in many word processors, for example, the return key ends a paragraph; in a spreadsheet, it completes the current cell and move to the next cell.
ASA control characters are simple printing command characters used to control the movement of paper through line printers.These commands are presented as special characters in the first column of each text line to be printed, and affect how the paper is advanced before the line is printed.
An early typewriter with a backspacer[sic] key.(Blickensderfer Model 7)Although the term "backspace" is the traditional name of the key which steps the carriage back and/or [note 3] deletes the previous character, typically to the left of the cursor, the actual key may be labeled in a variety of ways, for example delete, [1] erase, [note 4] or with a left pointing arrow. [3]
A Control key (marked "Ctrl") on a Windows keyboard next to one style of a Windows key, followed in turn by an Alt key The rarely used ISO keyboard symbol for "Control". In computing, a Control keyCtrl is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, Ctrl+C).