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In computing, a keyboard shortcut is a sequence or combination of keystrokes on a computer keyboard which invokes commands in software.. Most keyboard shortcuts require the user to press a single key or a sequence of keys one after the other.
A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. [1] The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed.
The steering wheel was directly coupled to the steering linkage as with conventional steering columns. Eventually, all push-button transmission selectors became a safety issue due to lack of industry-wide standardization. In addition, since the 1920s the center of the steering wheel had typically held the horn button. While some cars of the ...
A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...
Larry Tesler created the concept of cut, copy, paste, and undo for human-computer interaction while working at Xerox PARC to control text editing.During the development of the Macintosh it was decided that the cut, paste, copy and undo would be used frequently and assigned them to the ⌘-Z (Undo), ⌘-X (Cut), ⌘-C (Copy), and ⌘-V (Paste).
A push switch (button) is a momentary or non-latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. An automatic mechanism (i.e. a spring ) returns the switch to its default position immediately afterwards, restoring the initial circuit condition.
The power key, or power button, is a key found on many computer keyboards during the 1980s and into the early 2000s. They were introduced on the first Apple Desktop Bus keyboards in the 1980s and have been a standard feature of many Macintosh keyboards since then.
A mouse button is an electric switch on a computer mouse which can be pressed (“clicked”) to select or interact with an element of a graphical user interface. Mouse buttons are most commonly implemented as miniature snap-action switches (micro switches). The three-button scrollmouse has become the most commonly available design.