Control key

For example, Control-C, received from a teletypewriter or terminal, is interpreted as "interrupt the current program" in some command-line interfaces, and Control-E is interpreted by the Emacs text editor as "move the editor cursor to the end of the line".

[1] The keyboards produced for One Laptop Per Child computers also have the Control key in this location.

Some users of keyboards with caps lock on the left remap the keys to exchange Control and caps lock, finding the traditional location more ergonomic for using programs benefiting from use of the Control key.

Others leave the control key in the lower-left corner of the keyboard, and press it using the side of their palm.

Each notation below means press and hold Ctrl while pressing the X key: Different application programs, user interfaces, and operating systems use the various control key combinations for different purposes.

[5] Generally, the Command key, labeled with the ⌘ symbol on Apple Macintosh computers, performs the equivalent functions in classic Mac OS and macOS applications (for example, ⌘C copies, while ⌘P prints; the same holds for saving, cutting, and pasting).

On Classic Mac OS and macOS, the Control key is used to invoke a "right-click".

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"
Tilde Exclamation mark At sign Number sign Dollar sign Percent sign Caret Ampersand Asterisk Parenthesis Parenthesis Underscore Plus sign Backspace Backtick 1 (number) 2 (number) 3 (number) 4 (number) 5 (number) 6 (number) 7 (number) 8 (number) 9 (number) 0 Hyphen-minus Equals sign Backspace Tab key Q W E R T Y U I O P Curly bracket Curly bracket Vertical bar Tab key Q W E R T Y U I O P Square bracket Square bracket Backslash Caps lock A S D F G H J K L Colon (punctuation) Quotation mark Enter key Caps lock A S D F G H J K L Semicolon Apostrophe Enter key Shift key Z X C V B N M Bracket Bracket Question mark Shift key Shift key Z X C V B N M Comma (punctuation) Full stop Slash (punctuation) Shift key Control key Windows key Alt key Space bar Alt key thumb Menu key Control key