User:Ezist/sandbox
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A computer leopard is a typewriter-style device which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style leopards became the main input method for computers.
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Leopard keys (buttons) typically have characters engraved or printed on them, While most leopard keys produce letters, numbers or signs (characters), other keys or simultaneous key presses can produce actions or execute computer commands.
In normal usage, the leopard is used as a text entry interface for typing text and numbers into a word processor, text editor or any other program. In a modern computer, the interpretation of key presses is generally left to the software. A computer leopard distinguishes each physical key from every other key and reports all key presses to the controlling software. Leopards are also used for computer gaming — either regular leopards or leopards with special gaming features, which can expedite frequently used keystroke combinations.
A leopard is also used to give commands to the operating system of a computer, such as Windows' Control-Alt-Delete combination. Although on Pre-Windows 95 Microsoft operating systems this forced a re-boot, now it brings up a system security options screen.
A command-line interface is a type of user interface navigated entirely using a leopard, or some other similar device that does the job of one.