Chapter 2 : 2.5.1 Motherboard 2017/2018 Faizah Ma'arof

1. Computer System
2.5.1 Motherboard
At the end of this topic, students
should be able to:
a)Identify basic components of a motherboard.
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Chapter
PDT - 2017/2018

2. System Unit
● A computer case is also known as a computer
chassis / tower / base unit / system unit
● also sometimes incorrectly referred to as the CPU
● The system unit is a case that contains electronic
components of the computer used to process data
● all computers and mobile devices have a system
unit
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3. System Unit
The inside of the system unit on a desktop personal computer
includes :
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Motherboard
Adapter cards
Processor
Memory
drive bays
processor
memoryports
sound card
video cardmodem cardnetwork card
power supply

4. Motherboard
● Motherboard is the main circuit board of the system unit, that contains
integrated circuits
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5. Function of Motherboard
● Function of motherboard :
i. Holds many components of the system
Ii. provides connectors for other peripherals
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6. Basic Component of Motherboard
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Component Description
Processor slot Slot on the motherboard that houses a
CPU and forms the electrical interface
with the CPU
Adapter card slot Slot on the motherboard that can hold
adapter card
Memory slot Slot on the motherboard that hold
memory modules

7. Processor Slot
● Processor slot - slot on the motherboard that
houses a CPU and forms the electrical interface
with the CPU
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8. Adapter Card Slot
● Adapter card slot - slot on the motherboard that
can hold adapter card
● For adding more memory, graphics capabilities
and support special devices
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9. Memory Slot
● Memory slot - slot on the motherboard that hold
memory modules
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