A modem is a device that connects to either a cable or DSL line in order to provide users with Internet access. A modem acts as both a receiver and a transmitter as data travels in either direction. Modems are easy to setup and generally only require the user to connect the device to a cable line or DSL outlet and a power source in order to connect to the Internet (a computer and router are also required).

Router/Access Point

A router is a device that converts the signals from the modem into a wireless signal. Routers usually have two, four, or six Ethernet ports so that users can branch the modem’s signals across a large network of both desktop and laptop computers. An access point is similar to a router but it is usually a router and a modem in one compact device. Access points may also include other features such as a firewall, encryption, or VoIP device.

Wireless Network Adapter

A wireless network adapter is a device that can receive wireless signals from a router or access point. Laptop computers have wireless network adapters built in.  If you have a desktop computer, you can install an external wireless network adapter that usually connects to a USB port. Wireless network adapters range in size, price, signal reception, etc., but they are generally user-friendly and quite powerful. Users should keep in mind that even though a wireless network adapter can receive signals from a certain distance, it is only able to do this if the router or access point is also able to broadcast signals up to the same distance or further.

Range Extender

A range extender is a device that picks up signals from a wireless router or access point and “bounces” them to another location, usually much further than the router or access point would be able to reach. A range extender is usually installed directly between a wireless router and a network adapter, with an equal amount of distance in either direction. This is ideal for large facilities such as factories and corporate offices. Range extenders are very popular because they are easy to use.

Satellite Internet

Satellite Internet is a form of wireless networking that allows users to access the Internet virtually anywhere in the world via satellite connection. Satellite Internet eliminates the user’s dependence on equipment and local Internet Service Providers (ISPs). Satellite Internet usually costs nearly the same as cable or DSL and provides nearly the same speed. Satellite Internet is not without its disadvantages, however, as it is easily affected by the weather and can stop working if a storm blocks the satellite signals.

Mobile Devices

Mobile devices can now easily connect to the Internet in a number of ways. For example, users have the ability to configure their cell phones, PDAs, pagers, and other mobile devices to work with the user’s router or access point. Mobile devices can also be connected to their own wireless Internet plan through providers such as AT&T, T-Mobile, or Verizon. Users can also connect to public wireless networks provided by restaurants, airports, hotels and cafes.