Computer Motherboard Block Diagram, Components, Architecture


Computer motherboard is a very important part of any computer or laptop. Not only computers even mobile phones, printers, or any programming or computing electronic device contains a motherboard. Anyway in this article, we are going to learn about the computer motherboard. The motherboard is a large Printed Circuit Board(PCB) where all the important electronic components are placed. All the internal and external part of the computer is connected to the motherboard. Motherboard consists of so many components, slots, ports, devices, etc. As the motherboard of a computer has so many components, it is divided or named with some words to easily identify and understand the different parts of the motherboard.


Computer Motherboard Block Diagram


Here, you can see the block diagram of Motherboard.

Computer Motherboard Block Diagram, block diagram of motherboard



Motherboard Components and Their Function


The main important parts of components of the motherboard are,

1. CPU


CPU stands for Central Processing Unit. It is the heart of the motherboard or the whole computer. It performs the arithmetic operations such as addition, subtraction, division, multiplication, and logical operations such as rotate, moves, and many others. The CPU does not communicate directly with the real world. There are so many peripheral and supporting devices connected to the input and output of the CPU.


2. Clock Generator


It is basically a pulse signal generation circuit. It generates a pulse signal and provides to all the important devices of the motherboard such as processor, RAM, and other devices. It makes synchronization between all the devices for communication, data transferring, etc. The speed of the clock generation is measured by Herth(Hz), Megahertz(MHz), or GigaHertz(GHz).


3. Bus


Bus or Busbar is a pathway for data or signal transmission between different components of the motherboard. It is built with so many electrical conductors or conducting paths.


4. Chipset


It is built with different ICs, devices that manage the data transmission between the processor and different components of the motherboard. Generally, the northbridge and southbridge chipset together is called the chipset.


5. Northbridge and SouthBridge


The northbridge and southbridge are the main two components of the chipset. The northbridge controls the memory units such as RAM, Processor, and the Accelerated Graphics Port(AGP). It is the controlling hub for the memory unit.

On the other hand, the southbridge controls all the Input/Output control such as USB, IDE, SATA, Ethernet, Audio Codec, and other ports.


6. Slots


Slots are the arrangement for placing or interfacing different devices such as audio cards, RAM, graphics cards, network cards, modems, etc. Here, in the computer motherboard, you will see different types of slots such as PCI(Peripheral Component Interconnect) Slots, Graphic Card Slot, Memory Card Slots, etc. These slots help to connect and disconnect devices very easily.


7. RAM and ROM


RAM stands for Random Access Memory and ROM Stands for Read-Only Memory. RAM is a memory that is used during the program execution by the CPU. It is a temporary memory. CPU stores data temporarily in this RAM. On the other hand, ROM is a permanent memory. Once the data is stored in the ROM, it cannot be deleted. ROM is used to store the main program instructions, BIOS software, etc.



Computer Motherboard Block Diagram, Components, Architecture Computer Motherboard Block Diagram, Components, Architecture Reviewed by Author on 3/04/2022 Rating: 5

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