If you have a computer, chances are you already have a modem. To upgrade your modem speed, you can do a number of things. You may simply replace your old modem with a new one or look into getting a DSL or cable connection. A modem is a device that allows your computer to communicate with another computer over a phone line. Most notebooks and desktops come with an internal modem.
Modems are easy to upgrade.
If you'd like to upgrade a modem, you may replace the modem card you have currently installed or buy an external modem, which usually connects to a serial or USB port on your computer. To connect and download information off the Internet, 56K is one of the more common and practical speeds. 56K is the rate of transfer, and means that your connection allows up to 56-kilobytes of information to be transferred per second. Most notebook computers sold today will include a built-in 56K V.90 modem. If you don't have an internal modem of your notebook computer for whatever reason or would like to upgrade your notebook modem, this is possible through card slots.