The document discusses the main components of a computer motherboard. It describes how the motherboard contains all the circuits and components that run the PC, including the chipsets, CPU, BIOS, and RTC. It explains the three types of chipsets - sockets, expansion slots, and ports. Sockets provide power and connections for hard drives, floppy disks, and other components. Expansion slots include ISA, PCI, AGP, SIMM, and DIMM slots. Ports on the outside of the computer include serial ports, parallel ports, and USB ports for connecting various input and output devices.

1. COMPUTER
MOTHERBOARD
Presented
Engr.Kashif Saleem
Lecturer
Department Of Telecommunication
DCET, Karachi.

4. COMPUTER MOTHERBOARD

5. INTRODUCTION
• Motherboard is the main
circuit board in a PC.
• It contain all the Circuits &
Components that run the PC.

6. MAJOR COMPONENTS
1. CHIPSETS.
2. CPU ( Central Process Unit )
3. BIOS ( Basic Input Output system )
4. RTC ( Real Time Clock )

7. CHIPSETS
.These are the Large Chips that integrate
many functions.
.Chipsets often broken into Two Devices
with on providing an Interface from the
CPU to the Memory & the other
providing Controllers.

8. CLASSIFICATION OF CHIPSETS
There are Three types of Chipsets:
1. SOCKETS.
2. EXPANSION SLOTS.
3. PORTS.

10. SOCKETS
1. Power Supply: - Dc power to all Circuit
- ( 20 Pins Connector )
2. IDE : - Integrated Drive Electronics
- ( HDD & CD/DVD )
- ( 40 Pins connector )
3. FDD : - Floppy Disk Drive
- ( 34 Pins Connector )

11. EXPENSION SLOTS
. ISA SLOTS : ( Industry Standard Architecture )
. PCI SLOTS : ( Peripheral Component Interconnect )
. AGP SLOTS : ( Accelerated Graphic Ports )
. SIMM SLOTS : ( Single Inline Memory Modules )
. DIMM SLOTS : ( Dual Inline Memory Modules )
EXPENSION SLOTS
. ISA SLOTS : ( Industry Standard Architecture )
. PCI SLOTS : ( Peripheral Component Interconnect )
. AGP SLOTS : ( Accelerated Graphic Ports )
. SIMM SLOTS : ( Single Inline Memory Modules )
. DIMM SLOTS : ( Dual Inline Memory Modules )

12. PORTS
There are Three types of ports on the
outside of the computer:
Serial Ports
. For transmitting slow data over long
distances, 9 pins or 25 Pins connector.
. A line connected to Serial port will send bit
One at a time.
. It is usually used to connect devices that don't
require fast Transmission, e.g. Mouse,
Keyboard, Monitors & Speakers.
PORTS
There are Three types of ports on the
outside of the computer:
Serial Ports
. For transmitting slow data over long
distances, 9 pins or 25 Pins connector.
. A line connected to Serial port will send bit
One at a time.
. It is usually used to connect devices that don't
require fast Transmission, e.g. Mouse,
Keyboard, Monitors & Speakers.

13. PARALLEL Ports
. Transmitting Fast data over short distances,
can Transmit Information efficiently only up to
15 feet, e.g. Printers.
. A line connected to a Parallel port allows 8
Bits ( 1 Byte ) to be Transmitted ,e.g. Cars on
an 8- lane Highway.

14. USB Ports
. For Transmitting data to up to 127 devices
in a Daisy Chain to one general purpose Port.
. Hot Pluggable, USB devices to be connected or
disconnected even while the Pc is running.

15. ACTIVITYACTIVITY

16. ANSWERS
1.CPU = Central Process Unit.
2. USB = Universal Serial Bus.
3. ISA = Industry Standard Architecture.
4. AGP = Accelerated Graphic Port.
5. IDE = Integrated Drive Electronics.

17. Thank you