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Components of a computer
By George Lee
C.P.U• The CPU (Central Processing Unit), is the brain of
the computer.• The computer CPU is responsible for handling all
instructions and calculation it receives from other hardware components in the computer and software programs running on the computer.
• The CPU is attached to the motherboard using a locking system.
Hard Drive• A hard drive is something that holds files, music,
documents and downloads etc.• There are different types of hard drive, external
hard drives, they are hard drives that are plugged into the , internal hard drives.
Internal Hard Drive
External hard drive that connects via USB
Fans• The fans are used to cool the inside components like the CPU• The fans is connected to the Motherboard by a 3/4 pin Molex connector•The fan draws in cold air and expels hot air for better circulation•They prevent components on the motherboard from overheating
Optical Drive
• An optical drive is a disc drive that uses electromagnetic waves or light beams to read a disc
• They are connected through a IDE cable
Ram• Random access memory (RAM) is a form of computer data storage
•that allow stored data to be accessed in any order
•SRAM (static ram) does not need to be periodically refreshed
•DRAM (dynamic ram) does need to be periodically refreshed
Sound card• The sound card is an internal computer expansion
card
• Some sound cards are integrated into the motherboard, if you wish to upgrade your integrated sound card then you must disable the old sound card
USB connector• USB (Universal Serial Bus)• Developed in 1990s• Used for communication• Supply's power between electronic devices
Adapter cards• A printed circuit card • Required to allow a computer to support a new
device• Needed to enable a computer to communicate
with a peripheral
Input devices• Any peripheral used to provided data and control
signals• Keyboard• Mouse • Controller • joystick
Output devices• An output device is any piece of computer
hardware equipment used to communicate the results of data processing carried out by an information processing system
Speakers Monitor Printer/ Fax
NIC card• A network interface controller is a computer
hardware component that connects a computer to a computer network.
It is also known as a Lan card, network interface card, network adapter
Inside of a computer
Power supply
Fan
RAM
RAM slots
Motherboard