3.2.1 Devices

3.2.1.1 Identify the devices needed in computer network communication :

• Network Interface Card (NIC)

• Wireless Network Interface Card

• Modem (internal and external)

• Hub / Switch

• Router

• Wireless Access Point

3.2.1.2 State the functions of the following:

• Network Interface Card (NIC)

A Network Interface Card (NIC) is an adapter card or PC card that enables the computer to access the network

• Wireless Network Interface Card

Wireless Network Interface Card (WNIC) is a network card that provides wireless data transmission

• Modem (internal and external)

There are two types of modem, internal modem and external modem. An internal modem only works in stand-alone computers. It is built into the computer. An external modem is separated from the computer and is also mobile.

• Hub / Switch

Hub or switch is a common connection point for devices in a network. Hubs are commonly used to connect segments of a LAN.

• Router

A router is a communications device that connects multiple computers or other routers together and transmits data to the correct destination

• Wireless Access Point

A wireless access point is a central communications device that allow computers to transfer data. This device can help information to be transferred wirelessly to other wireless devices or to a wired network. Wireless access point has high quality antennas for optimal signals