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In the early days of micro computers, a motherboard provided links to numerous circuit boards and carried power, data and control lines from one board to another. The circuit boards that were plugged into the mother board were known as daughter boards and typically, each daughter board would have a specific task. One would carry the CPU, others would be used for inputs and outputs and several would be used for memory. A computer that had 10, 20 or more daughter boards was common. As integrated circuits have become smaller, with more functionality, the need for numerous boards was reduced with more and more being attached to the motherboard. A modern PC mother board will now contain almost all of the functionality of the computer. The expansion slots, once used for the many daughter boards are now used only for specialised applications rather than for the core operation of the computer. A typical motherboard will have the following parts: Central processor (CPU) Memory - on the mother board or on modules Inputs such as keyboard, mouse and tablet connectors Outputs such as a screen port (VGA or DVI port) Communications - Network, USB ports, serial ports etc Controller - a group of chips that monitor operation Local power supplies and power control Audio inputs and outputs Hard disk controllers Optical disk controllers Every motherboard varies slightly but all PC motherboards will have all or most of the parts listed. In the future, we can expect motherboards to be reduced in size and have more functionality.

1. PCI slots

2. Processor slot

3. RAM slot

4. HDD,FDD connector

5. CMOS battery

6. Power Supply

7. Optional AGP slots

8. Other Expansion slots

9. No. of Capcitors

10 Pins for special CPU functions such as TURN OFF, RESTART, HDD light etc

By:

SLIET,

email: ishanpreet.singh@gmail.com

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12y ago

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