/ A modem is a hardware device that handles communication between a computer and its ISP. /
/ The quality of a modem is measured by the rate at which it can send and receive information. A faster modem means better performance when working on the Internet. For this reason, it's a good idea to buy the fastest modem you can afford. Keep in mind, however, that the speed of information transmission is also determined by your ISP. /
/ Some modems are located inside a computer (internal modems), while others are located outside (external modems).While internal modems are less expensive, their installation and maintenance are more difficult. /
