ASSEMBLE AND DISASSEMBLE

A COMPUTER HARDWARE
OCCUPATIONAL HEATH AND SAFETY STANDARD, COMPONENTS OF SYSTEM UNIT
AND ASSEMBLING AND DISASSEMBLING OF COMPUTER
 CONTENTS

• OCCUPATIONAL HEATH AND SAFETY (OHS)

• COMPONENTS OF THE SYSTEM UNIT
• DISASSEMBLING A COMPUTER’S SYSTEM UNIT
• ASSEMBLING A COMPUTER’S SYSTEM UNIT
RECAP
PARTS OF THE SYSTEM UNIT (AT
THE BACK)
PARTS OF THE SYSTEM UNIT (AT
THE BACK)
OCCUPATIONAL
HEATH AND SAFETY
(OHS)
OCCUPATIONAL HEATH AND
SAFETY (OHS)
• In
assembling and disassembling a system unit it is very
important to understand and apply the OHS standard in the
workplace to avoid future problem.
• OccupationalHeath and Safety (OHS) is a multidisciplinary field
concerned with the safety, health, and welfare of people at
work.
• It
is important to know the following OHS so that we can apply it
upon assembling and disassembling a computer, to avoid future
problem.
OCCUPATIONAL HEATH AND
SAFETY (OHS)
Here are some of the OHS we should observe upon assembling
and disassembling a computer.
• Alwayspower off the computer and unplug the computer
before working on it.
• Always ground or discharge yourself before touching any part
of the computer or use anti-static wrist strap band.
• Do not work alone so that there’s someone who can take care
of you in case od ad accident or emergency.
• Use instructional manual.
OCCUPATIONAL HEATH AND
SAFETY (OHS)
• Take away any liquid near your working area to avoid getting electrocuted or
accidentally damaging computer parts.
• Be careful with tools that may cause a short circuit.
• Do not use excessive force if things don’t quite slip into place.
• Hold the components on the edges and do not ouch the Integrated Circuit
(IC) parts.
• Make sure that the pins are properly aligned when connecting a cable
connector.
• Use a brush, compressed air or blower in cleaning the computer system.
OCCUPATIONAL HEATH AND
SAFETY (OHS)
• Wear rubber shoes when standing on the ground or in a concrete
floor.
• Cleanthe area before and after using it to maintain sanitation
and prevent accidents.
• Alwayswear personal protective equipment (PPE) following the
organization’s OSH procedures and practices.
• Contingency
measures during workplace accidents, fire and other
emergencies are recognize.
COMPONENTS OF THE
SYSTEM UNIT
SYSTEM UNIT

System Unit – is a box that contains the

central electronic components of a
computer. It is sometimes called “ Tower”
or “Chassis”. It provides protection and
support for internal components. The size
and layout of the case are called a form
factor power supply.
The following are components found in
a System Unit :
Motherboard – is a system core, it is
actually the “heart of the computer”. Other
system elements are connected to
motherboards, and the whole system is
manage and controlled by it. Motherboard
contains special chips on which some IC
are etched. It contains the buses or
electrical pathways found in a computer.
Central Processing Unit/ Processor
(CPU) – a computer engine , referred to
as the “brain of the computer”. It
manages most of the computer
operations. Processors can be with pins
or pin-less. It contains a control unit a
logic unit.
Random Access Memory (RAM) – is a
computer’s short-term memory, volatile
storage. It storages all data processed by
programs and apps on the computer. A
random-access memory device allows
data items to be read or written in almost
the same amount of time irrespective of
the physical location of data inside the
memory.
Read Only Memory (ROM) – is a non-
volatile memory type. This means it
receives data and permanently writes it
on a chip, and it lasts even after you turn
off your computer.
Hard Disk Drive (HDD) – Also known as
Hard Drive or Hard Disk is an
electromechanical data storage device
that uses magnetic storage to store and
retrieve digital data using one or more
rigid rapidly rotating platters coated with
magnetic material. The platters are paired
with magnetic heads , usually arranged
on a moving actuator arm, which read
and write data to the platter surface.
Floppy Disk Drive (FDD) – also known
as floppy, diskette or simply disk. Is a
type of disk drive storage composed of a
disk of thin and flexible magnetic storage
medium , sealed in a rectangular plastic
enclosure line with fabric that removes
dust particles.
Optical Disk Drive (ODD) – is a disk
drive that uses laser light or
electromagnetic waves within or near the
visible light spectrum as part of the
process of reading or writing data from
optical disk.
Power Supply Unit (PSU) – converts
mains AC to low-voltage regulated DC
power for the internal components of a
computer.
Serial Advance Technology
Attachment (SATA) Data Cables – are
use to connect hard disk, SSDs and
optical drives to a PC’s motherboard. The
range includes standard cables, versions
with right-angled connectors to fit into
tight spaces, SATA power adapters and
SATA to MOLEX power connectors.
Integrated Drive Electronics (IDE) Data
Cables – is a standard type of connection
for storage devices in a computer.
Generally , IDE refers to the types of
cables and ports used to connect some
hard drives and optical drives to the
motherboard.
CPU Fan with Heatsink – these two
components works together in keeping
the CPU from overheating. The metal is
called the heatsink as it conducts heat
from the CPU while the CPU Fan blows
the air to the heatsink.
Expansion Cards – are cards inserted
into an expansion slot on the computer’s
motherboard and create an electronic link
between the two with edge connectors so
data can be communicated across.
TYPES OF EXPANSION CARDS:

Video Card – also called graphics

card, integrated circuit that generates
the video signal sent to a computer
display. The card is usually located
on the computer motherboard or is a
separate circuit board but is
sometimes built into the computer
display unit. It contains a graphics
processing unit (GPU), which is a
processor dedicated to creating
images; a digital-to-analog converter
and memory chips that store display
data.
TYPES OF EXPANSION CARDS

Local Area Network (LAN) Card –

also referred to as network adapter
or Network Interface Controller
(NIC). A card that is installed in the
motherboard to allow access to a
network like an internet or a home
network. It is both an input and
output device.
TYPES OF EXPANSION CARDS

MODEM Card – is an internal type of

MODEM that is plugged into the PCI slot
of a PC motherboard. A MODEM is a
communications device that allows a
computer to send and receive data
through telephone or cable lines.
TYPES OF EXPANSION CARDS

Sound Card – also known as audio card

is an internal expansion card that
provides input and output of audio signals
from a computer under control of
computer programs. The term sound card
is also applied to external audio
interfaces used for professional audio
application.
TYPES OF EXPANSION CARDS

Firewire or USB Expansion Card – add

this card if you need more USB ports in
your computer.
DISASSEMBLING A
COMPUTER’S SYSTEM
UNIT
STEP 1: Remove the locks and screws.
STEP 2: Remove the cover casing.
STEP 3: Disconnect the front panel connectors.
STEP 4: Disconnect the power cable.
STEP 5: Disconnect the bus or data cable.
STEP 6: Remove the cooling fan.
STEP 7: Remove the expansion cards.
STEP 8: Remove the CD/DVD or Optical Disk Drive (ODD)
and Floppy Disk Drive (FDD).
STEP 9: Remove the Hard Disk Drive (HDD).
STEP 10: Remove the Power Supply Unit (PSU).
STEP 11: Remove the Random Access Memory (RAM).
STEP 12: Remove the CPU fan with heatsink.
STEP 13: Remove CPU or Processor.
STEP 14: Remove the motherboard.
ASSEMBLING A
COMPUTER’S SYSTEM
UNIT
STEP 1: Prepare the system Unit.
STEP 2: Install the motherboard.
STEP 3: Install the CPU/Processor.
STEP 4: Install the CPU fan with heatsink.
STEP 5: Install the Random Acess Memory (RAM).
STEP 6: Install the Power Supply Unit (PSU)
STEP 7: Install the Hard Disk Drive (HDD)
STEP 8: Install the CD/DVD or Optical Disk Drive (ODD) and
Floppy Disk Drive (FDD).
STEP 9: Install the Expansion Cards.
STEP 10: Install the Cooling Fan.
STEP 11: Connect the bus or Data Cable.
STEP 12: Connect the Power Cables.
STEP 13: Connect the front panel connector.
STEP 14: Remove the motherboard.
STEP 15: Close the Cover Casing.
QUIZ
INSTRUCTION : Fill in the following steps in assembling and disassembling a
computer hardware.
ASSEMBLING:
STEP 1: Prepare the system Unit.
STEP 2:
STEP 3: Install the CPU/Processor.
STEP 4:
STEP 5:
STEP 6: Install the Power Supply Unit (PSU)
STEP 7:
QUIZ
INSTRUCTION : Fill in the following steps in assembling and disassembling a
computer hardware.
ASSEMBLING:
STEP 8: Install the CD/DVD or Optical Disk Drive (ODD) and Floppy Disk Drive (FDD).
STEP 9:
STEP 10:
STEP 11: Connect the bus or Data Cable.
STEP 12:
STEP 13:
QUIZ
INSTRUCTION : Fill in the following steps in assembling and disassembling a
computer hardware.
DISASSEMBLING:
STEP 1:
STEP 2:
STEP 3: Disconnect the front panel connectors.
STEP 4:
STEP 5: Disconnect the bus or data cable.
STEP 6:
STEP 7:
QUIZ
INSTRUCTION : Fill in the following steps in assembling and disassembling a
computer hardware.
DISASSEMBLING:
STEP 8:
STEP 9: Remove the Hard Disk Drive (HDD).
STEP 10:
STEP 11: Remove the Random Access Memory (RAM).
STEP 12:
STEP 13:
STEP 14:
REFERENCES
• Https://www.youtube.com/watch?v=hzfzK5vmbN0&feature=youtube.
• https://www.slideshare.net/rayrenz/computer-hardware-parts-functions.
• https://www.youtube.com/watch?v=mBSAs3zgIDU
• https://www.britannica.com/technology/video-card
• https://www.youtube.com/watch?=mozlEPyeVAY.