Looking at any personal
computer system we usually see three things – the Computer inside a cabinet, a
Video Monitor, a Key Board, a mouse, and sometimes a Printer. Technical Data used in the field explained in computer
courses in Rawalpindi. Many other accessories may be fitted to the
computer - Joysticks, Light pen, Modem, and even Sound Recorder, Camera,
Speaker, Projector, etc. in Multi -media systems. We shall make a brief description
of these components. But before that we must note the basic physical configuration
of a personal computer system, which consists of three stages of operations – input of information, processing of information, and output of the results or processed information.
A computer is truly
speaking the CPU-base memory chip as the essential function of a computer, that
is, processing information is done by it. But it cannot perform alone without input
and output devices. In the present architecture of personal computer, the three
essential parts of the physical configuration, namely input devices, processor,
and output devices, are fitted to a board called the Motherboard. Besides the
CPU, the motherboard also has many other
slots for fitting extended memory chips, the storage device, control cards,
input and output device control cards
and their input output ports (plug in points). Some more details of computer courses in rawalpindi are
as under.
All these are assembled
and fitted to the motherboard. There is also another part called the SMPS,
which transforms the voltage of electrical power supply as per requirement of
various control cards. It should be remembered that there is also a small
battery fitted to the motherboard which keeps the basic charge necessary for
keeping some system information within the CPU –base memory, even when we
switch off the power supply. In desktop computer all these are kept inside the
Computer Cabinet – now available in the form of Tower Casing for the desktop.
TSK Training for Skills and Knowledge is
the best institute in Rawalpindi Islamabad for Pakistani Students who wants to
join computer courses in Islamabad.
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