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Internal and external components of a computer system
Transcript of Internal and external components of a computer system
PSU stands for power supply unit, the job of this component is to take the power coming into the system and covert it into a measurable size that the unit can handle.
Ram stands for Random access memory, this is the memory that stores open applications until they are no longer being used. The more Ram you have the more applications your computer can run at once
CPU stands for central processing unit, this is the brain of the computer and is where all the calculations being made take place.
The hard drive is where the computer stores nearly everything installed/downloaded on it. This includes the operating system, software programs and computer files.
This could also be known as a graphics card, the responsibility of a graphics card is to render the images you see on the monitor so that we are able to see and interact with whatever the computer is showing us.
The job of the fan is to take any hot air that is being produced from inside the unit out to protect the internal components from over heating. The fan is usually placed close to the cpu because it is constantly being used and needs to stay cool to function properly.
Bios stands for basic input output system, the responsibility of the bios is to interface all of the hardware components of the unit to the operating system to get the computer working.
The motherboard is an essential part of the unit, it holds many components of the computer such as the CPU and Graphics card etc and allows them to all communicate with each other.
A sata cable is used to connect hardware such as the hard drive and dvd drive to the base unit.
A DVD/CD Drive can be used to either read or write on a disk placed into it. A disk can be read for many reasons, some common reasons are to install a type of software on to the computer, play a movie and listen to music. these items can also also be burned onto an empty disk for later use.
The monitor is a device which allows you to see everything the base unit is displaying
This is object which holds many important parts of the PC such as the hard drive, Graphics card and PSU.
This is a device which allow you to type and sometimes navigate a through a screen.
This device allows you to move the pointer around on the screen and select shown objects
The ports of the base unit is where you can connect any external memory devices such as a Usb drive. Here you can also connect an input audio device such as a microphone and an output device such as a speaker