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Parts Of A Computer And What They Do - Papers

Parts Of A Computer And What They Do



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 format as in industry they can
be used to send different common commands to a computer for example a farm
may have a key board controlling the environmental setting in the sheds
with a button to dim the lights or turn them up or a button to turn on the
water supplies.
The keys on a QWERTY keyboard will work in two different way.

Captive key: When this key is pushed a plunger is pressed down
allowing a current to flow ...

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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 that the
user can interact with this is most popular with machines too small to use
a standard keyboard such as palmtop computers.

Mice

A mouse is a way of removing the clumsy use of a keyboard a mouse's
primary function is to convert movement of the mouse ball to movement of
the on screen pointer making computer use quicker and simpler.
Mice have opened up mass of programs moving us away from user
unfriendly operating systems such as MS DOS to systems such as windows
where users ...

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or other foreign bodies this is
because there is not much room in between the platters and the heads
2. Underneath the drive is the logic board where all of the
information sent from the controller and operating system is translated
into fluctuations of the current, these force the head actuator to move
over the platters. The board is also responsible for making sure the
spindle is spinning at a constant speed.
3. The spindle that drives unto eight magnetically coated platters
at many thousand rotations a minute, the number of platters on the spindle
dictate how large the drive will be.
4. This head actuator plate moves the read write heads across the
platter in ...

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PAPER DETAILS
Added: 12/22/2008 10:42:57 AM
Category: Computers
Type: Premium Paper
Words: 2549
Pages: 10

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