Different Components of a Computer System

Different Components of a Computer System

This small article aims to introduce the components of a computer and their role to beginners. There are parts needed to operate a PC and other optional but each has its place. There are some differences between laptops and laptops.

The necessary parts
The motherboard: It is she who takes care of connecting the peripherals and components between them, like the memory modules, the hard disks, the microprocessor. It is composed of several elements like the BIOS, the socket, the ports (USB for example as one can see on the image), the chipset.

The chipset regulates the connections and the socket ensures perfect communication between the elements. These are important roles that should not be overlooked when choosing a motherboard.

The graphics card: It is she who sends to the screen the images stored in its memory. It is dedicated to HD videos, games and 3D because the graphics chip of a processor can handle simple tasks. His main roles are held by his Graphic Processing Unit (GPU) which deals with calculations of 2D or 3D graphics and the memory which exchanges the data with the GPU and obviously stores the images to be sent.

Memory modules: Also known as random access memory or Random access memory (RAM), this is where the computer stores the data being processed, it is essential to supply the data processor with quick access. It’s only temporary storage, a volatile memory the data is no longer present once the computer turns off, unlike a hard drive.

It is the frequency of the bars that must be looked at to choose them, the higher it is, the faster the access to the data. One can also learn about the number of clock cycles needed to fetch a piece of stored data.

The power supply: It is it that feeds the PC into electricity, it converts the voltage that arrives to make it compatible with the circuits of the computer. It has several connectors for graphics cards, hard drives… You have to pay attention to their number and the power of the power supply compared to what the computer can ask for.

The microprocessor: The processor executes the instructions and processes the data of the programs. It goes with the motherboard. The microprocessor is smaller and in one box. Frequency is one of the elements that reflect its power as well as the number of cores or cache memory.

The fan: It is he who cools your PC, it is chosen according to its ability to circulate the air and its silence of operation. You can see the number of revolutions per minute, the more it is, the more noisy, a larger diameter fan will have less need to turn.

Optional parts
The network card: It sends and controls the data on the network, it is identified by a MAC address, it translates the digital signals into electrical or optical.

The hard disk: It is he who stores the data permanently, it has a cache that keeps the data that is accessed more often which offers a faster reading. Its rotational speed in revolutions per minute determines the access time to the data.

The sound card: It allows to manage the input-output sound of the computer, as soon as you plug a microphone, a headset. It, therefore, converts the audio data from the computer to a signal and vice versa and has external input-output connectors such as the jack. We speak of resolution for the sound reproduction.

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