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Keyboards A key board is simply a way that the user may interface a fixed number of commands (equal to the number of keys that the manufacturer places on the board). The standard keyboard for home PCs is a QWERTY key board, but they are not restricted to this for ....

Middle of Essay
.... the current has increased and reacts accordingly and the same when the current is depressed and the current decreases. Over the years many new types of keyboard have been thought up these are mostly more ergonomically designed than there older counter parts this is done in order to reduce R.S.I a problem that effects a lot of typists One of the most interesting keyboard is a device called a data hand this will take a combination of hand movement and clicks and convert them in to working commands. Another type of keyboard is the virtual keyboard this removes the physical keyboard and replaces it will a digital interpretation ....