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The Motherboard. This is the backbone of your computer
system. All of the data connections (busses) between all of the
components are embedded into the Motherboard and it is where you insert
or plug all of the peripherals, cards, the processor and the memory. The
motherboard hold the BIOS - the Basic In/Out System which is the onboard
software which allows the hardware to be managed and to identify itself
to the Operating System. |
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The RAM
- Random Access Memory. This is the middle-man
between the Hard Disk Where everything is stored, and the CPU, where all
the work is done. It is much faster to read and write to than a Hard
Disk because it has no moving parts and so can move as fast as the micro
transistors can. It is where all of the tasks that your computer is
currently dealing with are being stored and these tasks will be
reporting back to the Hard Disk to file the results or to seek further
information from archived files. |
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The Hard Disk Drive
or HDD is the filing cabinet
for all of the information on your computer. Here is kept your Operating
System, Your Applications and all of your Data. Everything that makes
your computer different from the day it was installed is remembered and
altered in the Hard Disks' file system. The Hard Disk is a magnetic
storage device that is changed by electro-magnetic forces, but retains
its information when left without power even for long periods - just
like a magnet. |
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The Operating System is the software base that is
loaded onto your computer which allows all of your applications to
understand how to use the peripherals like the processor, memory,
keyboard and monitor, and so makes it possible for you, as the user, to
manipulate and interact with the system. The Operating System or OS is
the fundamental building block of software that understands all of your
actions and without it, your computer cannot understand anything you
tell it. |
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The Output Devices make up all of the equipment
which allow us to experience the incredible power computers have come to
hold over us all. Monitors (Pictured) Soundcards, Network Cards,
Projectors are all examples, and there are many more. Any means of us
interpreting or communicating the results of a computation are reliant
upon being told what the result is and this can only be done by the
computer controlling an output device in a way suitable for us to
understand. |
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The
Processor or CPU (Central Processing Unit)
does lots of the real
work that your computer is asked to do. It is the core of the computer
being on the fastest part of the Bus and processing every job loaded
from the memory or hard disk. The memory will be on a part of the system
bus that will be a fraction of the speed of the processor bus but that
may be faster than the rest of the bus, this core part of the bus is
often called a Front Side Bus or FSB and
can be upwards in speed of 800MHz. Increasingly many components of the
computer incorporate their own CPU such as Video Display and Sound Cards
so that the PC is slowly creeping toward being given a processor for
each task. The latest CPUs from AMD and Intel are twin-core which means
that they are really two processors sharing a single bus connection or a
single cache which is the memory where the data is stored on which the
actual processing is being carried out. The one pictured has a
water-cooling system. |
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The Power Supply is from where the whole system draws its power.
The Hard Disk, The DVD/CD reader/writers, sound and video display cards
and the motherboard itself all draw current in order to function from
the power supply. Usually the power supply is hard fixed to the back of
the computer casing and is where you connect the 'Kettle Plug' before
switching on. The power supply is then connected to all of the disks and
other other 'off-board' components (the Hard disk and DVD/CD readers etc
do not connect to the Motherboard for power, they are directly connected
to the Power Supply) and the Motherboard. The Motherboard also connects
the Power Supply to the on/off switch so that the system all begins
taking power at the same time - the switch is connected from the case to
the Motherboard to the Power Supply-. |
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