The document describes the main internal components of a computer and their functions, including the CPU that controls processing, the screen that allows viewing of processing, and the power supply that provides electricity to components. It also mentions the motherboard that connects components, RAM for main memory, expansion cards for enhancing functions, and storage devices like hard drives and optical drives for reading data from disks.

1. Internal parts of a computer
and their functions.
by Emily Scamell

2. CPU
A CPU is known as the brain or the core of the
computer, it controls the processing of the
computer.
Processing= computers language

3. Screen
The screen is something you know, you are
looking into it now. The screen allows us to see
inside the computers processing.

4. Power supply
The power supply supplies all the computer
components with electricity.

5. Fans
The fans are added to prevent the computer
from over heating.

6. Mother board
The mother board connects all the components
in the computer.

7. Ram (Random accessing memory)
The Ram is the main memory of the computer
and is fond in the mother board.

8. PCB (printed circuit board)
PCBs or adapter cards come in twos, the sound
card and the video and graphics card. They
enhance the sound and video quality on the
computer.

9. NIC (network interface card)
Allows the computer to connect to the internet.

10. FDD (floppy disk drive)
A drive that can read or write on a removable
magnetically coated floppy disk. It is a type of
storage medium and back up device.

11. HDD (hard disk drive)
A drive that can run on a magnetically coated
platter, that spins at high speed. There can be
more than one in a platter in the hard drive.
While the platter is rotating the magnetic head
reads the data stored on it.

12. Optical drives
There are two types of optical drives, the DVD
drive is a built in DVD player. DVD players allow
the computer to read DVD’s and show their
data. The other optical drive is a CD-ROM drive,
it allows the computer to run CD-ROM’s.

13. END