1. Motherboards
The Main Printed Circuit Board Inside The PC That Contains and Controls The Components That Are Responsible For Processing Data.

2. Motherboard is Multi-layered printed circuit board
Most are made of fiberglass and copper.
Copper circuit paths called traces carry signals and voltages across the motherboard
Some layers carry data for input/output while other layers carry voltage and ground returns

3. Think of a Motherboard as:
Futuristic City with many modular plug-in buildings, using power from a common electrical system
Multiple-lane highways of various widths transporting data between buildings
Data and power infrastructure for the entire computer

4. Connects Directly or Indirectly to Every Part of The PC
Motherboard
Important Parts\Functions of the Motherboard
Holds The Processor
Memory
Expansion Slots
Connects Directly or Indirectly to Every Part of The PC

5. Basic Motherboard

6. Motherboard Made Up Of:
A Chipset (known as the “glue logic”)
Some Code in ROM
Various Interconnections or Buses

7. Basic Input/Output System
All motherboards include a small block of Read Only Memory (ROM) which is separate from the main system memory used for loading and running software. The ROM contains the PC’s BIOS.

8. CMOS RAM
Motherboards include a separate block of memory made for low power consumption CMOS RAM chips, which is kept alive by a battery even when the PC’s power is off.
When the computer boots up, certain amounts of information are needed to ensure that the computer boots properly. This includes hard disk types, keyboard and display type, chip set and the time and data. For example, the hard drive booting properly means that the operating system boots properly. This is important to understand because it explains why CMOS RAM is so important

9. Motherboard Determines:
CPU type and speed
Chipset
Secondary cache type
Types of slots
Number of slots
Type of memory
Number of memory sockets and maximum memory
Type of case
ROM
Plug & Play compatibility
Type of keyboard

10. Form Factors
Form factor means the size and shape of the actual motherboard
3 most common Form Factor classifications:
Baby AT
ATX
Slimline NLX

11. Motherboard Dimensions

12. Advice on Buying Motherboards
Deal with reputable manufacturer
Ensure that it has same form factor as current case
Check the power supply requirements and AMD processors
Verify the form factor of your computer case matches the form factor of any motherboard you plan to buy
Avoid tweaking voltages and timings