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WMSU
PARTS OF A
COMPUTER
SYSTEM UNIT
1
• The computer system unit, often refers to
the physical enclosure that houses the
essential internal components of a
computer. It acts as the central hub for all
the hardware that enables the computer to
function. This unit is distinct from the
peripheral devices such as the monitor,
keyboard, and mouse, which are external
components that interact with the system
unit.
2
3
Central Processing Unit (CPU)
• The CPU is the primary
control centre of the
computer, and it
facilitates communication
and collaboration between
different hardware and
software computer
components. It is also
usually the most complex
and valuable part of the
entire system because of
its complicated design
and utility.
4
• The motherboard acts
as the central electrical
circuit by connecting
different parts, and
distributing power as
per energy requirement
and delivering
information and
instructions across the
computer system.
5
Motherboard
Random Access Memory (RAM)
RAM is the memory space that houses
temporary data, processes, information
and commands. When you launch a
program or use an application, it uses the
RAM to stay active and work optimally. 6
• A video graphics array (VGA)
port is a connector usually
present in desktops and
other display devices. It is
typically present on the side
or back of a monitor or
display screen and helps
share the screen or visuals
with another machine.
Special VGA cables may be
required to facilitate this
sharing. You may also
require the VGA port to
connect a computer or
laptop to a projector. The
quality of visuals often
depends on the number of
connectors in the port.
7
Video Graphics Array (VGA)
Power Supply
• The power supply port provides electricity
that activates the entire computer system.
Usually, the power chord is present at the
back of the CPU or the PC tower and goes
directly into the electricity socket. Places
with variable power supplies may use a
UPS or uninterrupted power supply unit to
ensure that fluctuations do not impact the
computer's performance.
8
9
Cooling Fan
• A computer system or laptop
uses electricity to operate
and produces heat in the
process. All CPUs and
laptops have a cooling fan to
circulate air in the internal
system and prevent
overheating. High-end
computers may also have
more than one cooling fan to
ensure that the user can use
heavy-duty applications that
require high performance
from the system.
10
•
•
Hard drives are the
storage devices that save
the file, information and
programs. They are
usually magnetically
coated discs that store
all this data digitally.
Hard drives with high
storage can naturally
save more data. You can
also purchase external
removable storage
devices to manage data
more efficiently.
• Alternatively, you can
also move your data
to cloud-based
storage services and
save storage memory
on your system. Hard
drives are susceptible
to failure, and backing
up your drives
regularly is a good
practice.
11
Hard Drive
12
• The sound card
processes and
outputs audio signals,
allowing the
computer to produce
sound for music,
videos, and system
alerts.
13
Sound Card
• The video card
converts digital data
into visual images
that are displayed on
the monitor. It plays a
crucial role in
graphics processing,
especially for gaming
and multimedia
applications.
14
Video Card
Network Card • The network card
enables the computer to
connect to a network,
allowing it to
communicate with other
devices and access the
internet.
15
THANK YOU!!
16

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Computer System Unit.pdf Introduction to Computing

  • 2. • The computer system unit, often refers to the physical enclosure that houses the essential internal components of a computer. It acts as the central hub for all the hardware that enables the computer to function. This unit is distinct from the peripheral devices such as the monitor, keyboard, and mouse, which are external components that interact with the system unit. 2
  • 3. 3
  • 4. Central Processing Unit (CPU) • The CPU is the primary control centre of the computer, and it facilitates communication and collaboration between different hardware and software computer components. It is also usually the most complex and valuable part of the entire system because of its complicated design and utility. 4
  • 5. • The motherboard acts as the central electrical circuit by connecting different parts, and distributing power as per energy requirement and delivering information and instructions across the computer system. 5 Motherboard
  • 6. Random Access Memory (RAM) RAM is the memory space that houses temporary data, processes, information and commands. When you launch a program or use an application, it uses the RAM to stay active and work optimally. 6
  • 7. • A video graphics array (VGA) port is a connector usually present in desktops and other display devices. It is typically present on the side or back of a monitor or display screen and helps share the screen or visuals with another machine. Special VGA cables may be required to facilitate this sharing. You may also require the VGA port to connect a computer or laptop to a projector. The quality of visuals often depends on the number of connectors in the port. 7 Video Graphics Array (VGA)
  • 8. Power Supply • The power supply port provides electricity that activates the entire computer system. Usually, the power chord is present at the back of the CPU or the PC tower and goes directly into the electricity socket. Places with variable power supplies may use a UPS or uninterrupted power supply unit to ensure that fluctuations do not impact the computer's performance. 8
  • 9. 9
  • 10. Cooling Fan • A computer system or laptop uses electricity to operate and produces heat in the process. All CPUs and laptops have a cooling fan to circulate air in the internal system and prevent overheating. High-end computers may also have more than one cooling fan to ensure that the user can use heavy-duty applications that require high performance from the system. 10
  • 11. • • Hard drives are the storage devices that save the file, information and programs. They are usually magnetically coated discs that store all this data digitally. Hard drives with high storage can naturally save more data. You can also purchase external removable storage devices to manage data more efficiently. • Alternatively, you can also move your data to cloud-based storage services and save storage memory on your system. Hard drives are susceptible to failure, and backing up your drives regularly is a good practice. 11 Hard Drive
  • 12. 12
  • 13. • The sound card processes and outputs audio signals, allowing the computer to produce sound for music, videos, and system alerts. 13 Sound Card
  • 14. • The video card converts digital data into visual images that are displayed on the monitor. It plays a crucial role in graphics processing, especially for gaming and multimedia applications. 14 Video Card
  • 15. Network Card • The network card enables the computer to connect to a network, allowing it to communicate with other devices and access the internet. 15