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Playback controls on a CD player. Control symbols on a Sony Betamax Portable.. In digital electronics, analogue electronics and entertainment, the user interface may include media controls, transport controls or player controls, to enact and change or adjust the process of video playback, audio playback, and alike.
The earliest editors (designed for teleprinter terminals) provided keyboard commands to delineate a contiguous region of text, then delete or move it. Since moving a region of text requires first removing it from its initial location and then inserting it into its new location, various schemes had to be invented to allow for this multi-step process to be specified by the user.
Such passive adapters may be specific to the devices they came with; however, the most common configuration involves sharing the GND and Vcc (+5 V) pins of both protocols, connecting the USB D+ pin to the PS/2 +CLK pin, and connecting the USB D- pin to the PS/2 +DATA pin. Using such adapters requires a dual-mode controller on the keyboard or ...
Typing on a laptop keyboard. A computer keyboard is a built-in or peripheral input device modeled after the typewriter keyboard [1] [2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches.