A computer has to be equipped with a device called a modem before it can be connected to a telephone or cable TV line. Following are the most common connection types and each requires a different modem type.
· Regular low-speed (voice) telephone line (dial-up connection)
· High-speed DSL (Digital Subscriber Line) telephone line connection
· Cable TV line
How The Internet Works (Modems)
Cable Modem Shown
Dial-up Modem is Usually an Internal PC Card