What are routers used for?

• This is used to locate the network

• Routers store IP addresses in something

• Routers enable data to be sent (routed) between different types of networks

What exactly do routers do?

• plugged into a computers wired network interface card and

  connects it to the network.

• can transfer data faster than wireless

• routers can connect different types of networks together

  and send data between them.

The router performs the following

functions: ( choose 3)

• They can read data and decide where to send it

• All computers and devices connected to the internet are assigned a unique number

• They can decide on the fastest route in which to send the data

• They can make the format of the data suitable for the network where it is being sent.

What are network interface cards used for?

• Some wires are used to send data to the computer

• Network Interface Cards are used to connect individual computers/devices to a network.

• me wires are used to receive data from the computer

There are two types of network interface card which one is on the photo

• Wired network interface card (Where cables are used to connect computers)

• Wireless network interface card (Where computers are connected using Wi-Fi)

What are hubs used for?

• Hubs allow computers and devices to plug into their ports to connect to each other and share files, data and resources.

• Each network device has a Media Access Control (MAC) address which uniquely identifies it.

• connect different types of networks so that they act as one single LAN and thus can communicate with each other

Hubs are 'non-intelligent' devices and they don't manage any of the data that flows through them.

• True

• False

The hub simply sends the data onto every computer/device on the network

• True

• False

This lack of data management makes networks that are connected by hubs very slow because there is a lot of unnecessary data flowing around.

• True

• False

What are switches used for?

• can also reverse this process and convert the analogue signals from the

  telephone line into digital data (demodulate) so the computer can use it.

• Switches are similar to hubs in that they connect computers/devices to form a LAN.

• old technology and have been replaced by switches which manage data more effectively and operate much faster