The motherboard is the most important part of a personal computer. It holds the central processing unit (CPU) or processor, memory chips including random access memory (RAM) and read-only memory (ROM), and expansion slots for connecting peripherals like sound cards and network cards. RAM is used to run programs and process data temporarily, while ROM permanently stores the basic input/output instructions a computer needs to boot. Common processor chips placed on the motherboard include the Pentium and PowerPC.

1. The Motherboard
Mohamed
Sefer Al-Rashidi

2. 1. Inside a PC
CD-ROM
drive
Power
supply
Hard disk
drive
Mother
board
Floppy
disk drive
Sound/network
cards
Wires and
ribbon cables
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3. 2. The Motherboard


Definition: The most important part of a PC is
the motherboard.
It holds:
 the
processor chip
 memory
 chips
 the
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chips
that handle input/output (I/O)
expansion slots for connecting peripherals
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4. Motherboard Picture
Read-only
Memory
(ROM)
chips
Random Access
Memory (RAM)
chips.
Processor chip
(the CPU)
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Expansion slots
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5. 3. RAM



Random Access Memory (RAM).
RAM is used to hold programs while they are
being executed, and data while it is being proc
essed.
RAM is volatile, meaning that information
written to RAM will disappear when the comp
uter is turned off.
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continued
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6. 4. ROM




Read-Only Memory can
be read but not changed.
It remembers its contents even when the power is
turned off.
ROM chips are used to store the instructions a
computer needs during start-up, called firmware.
Some kinds of ROM are PROM, EPROM,
EEPROM, and CD-ROM.
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7. Some Processors (CPUs)
Pentium Chip
PowerPC Chip
Chip Fan
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8. Some questions:
1) Put the name of these component
In motherboard
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10. 2) Point to the motherboard in CPU
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11. 3) What does the two kinds of memory ?
4) What does the holds of mother board?
5) Give one kind of processors ?
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12. With my best wishes
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