Internet [2.6]

A router can form a LAN by connecting devices within a building.

Provides services to client computers (print servers, mail servers)

Cat 5 - Slowest Cat 6 - Faster Cat 7 - Faster Cat 8 - Faster Cat 9 - Fastest

A switch stores the MAC addresses of devices on a network and filters data packets to see which devices have asked for them.

An active device that receives data packets and looks at who they are before sending to the intended user. Very quick and secure.

A hub broadcasts data to all devices on a network.

A passive device that sends data packets to every device that is connected to it.

Bridges are used to connect two separate LAN networks.

A modem enables a computer to connect to the internet over a telephone line. It converts digital signals from a computer to analog signals that are sent down the line.

A computer that sits between different networks or applications.

Converts info, data or other communications from one protocol or format to another.

Wireless access points

required to connect to a network wirelessly, usually built in to the broadband router. Connects devices using WiFi to the network.

Network interface card -small circuit boards that connect to the motherboard.

Enable desktop and laptop computers to connect to a network.

Electronic device that receives a signal and retransmits it.

Extend transmissions so the signal can cover longer distances or be received on the other side of a obstruction.

Collection of inter-connected networks.

Information system of interlinked web pages and other resources accessed from a web browser (e.g safari, chrome)

Makes use of HTTP to send and receive data.