Components
Uses
Ports
Read or write
Expansion Cards
100


Hard drive

100

What is a hard drive used for?

To store programs and files on the computer.

100


Ethernet port. Used to connect to a network.

100

CD-ROM

Reading only.

100


USB card. Used to extend USB connections on the computer.

200


Ports

200

What are used ports for?

To communicate the microprocessor with the peripherals devices.

200


USB type A port. Allows connection to a wide variety of devices such as printers, mice, cameras, USB divers, etc.

200

DVD-R

One-time writing.

200


Network card. Used to connect the computer to a network.

300


Microprocessor

300

What is RAM memory used for?

To temporarily store information and data with which the microprocessor works.

300


Audio ports. Used to connect microphones, headphones and recording devices.

300

ROM Memory

Reading only.

300


Sound card. It transforms the analog sound signal into digital and vice versa.

400


RAM Memory

400

What is ROM memory used for?

To keep programs required for booting and to detect essential devices.

400


PS/2 port. Used to connect the mouse and keyboard.

400

RAM Memory

Multiple writing.

400


Video card. It is used to improve the graphic and video signal that arrives to the monitor.

500


ROM Memory

500

What two functions does the microprocessor have?

Perform logical and mathematical calculations, and provide instructions to the rest of the components through signals and data.

500


VGA port. Used to connect the screen.

500

BD-RE

Multiple writing.

500


Wifi card. It is used to connect the computer to a network wirelessly.