2. • 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.
3. • 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 External hard drive that connects via
Drive USB
4. • 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
5. • 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
6. • 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
7. • 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
8. • USB (Universal Serial Bus)
• Developed in 1990s
• Used for communication
• Supply's power between electronic devices
9. • A printed circuit card
• Required to allow a computer to support a new device
• Needed to enable a computer to communicate with a
peripheral
10. • Any peripheral used to provided data and control signals
• Keyboard
• Mouse
• Controller
• joystick
11. • 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
12. • 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
