Communications Devices

• A communication device is any type of hardware capable of transmitting data, instructions and information between a sending device and a receiving device.

• A dial-up modem converts signals between analog and digital.
• A digital modem sends and receives data and information to and from a digital line.
• A wireless modem uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device.

• A network card enables a computer or device to access a network.
• A wireless access point is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network.

• A router connects multiple computers or other routers together and transmits data to its correct destination on a network. 

• A hub or switch connects several devices in a network together.