The manufacturer of the large hard drive usually provides this software. Information about the hard drive in your current system will be helpful. A modem performs two important jobs. It accepts information coming from your computer in digital form and transforms it to an analog form that can be carried on a standard telphone line. Using the communications software on your computer, a modem also dials the number of another modem and establishes a communications link so information can be passed from computer to computer over a standard telephone line.
Modems come with the capacity to transfer information at various speeds.
But, they are no longer adequate for the growing amounts information that is passed from computer to computer. The 9600 baud and 14.4kbps modems are adequate for passing simple text, like e-mail, but are too slow for the large amount of information accessed by an Internet browser. The 33.6 baud modems are really the only modem of choice for your access to Internet. Internal modems save space on the desktop but are more difficult to support via telephone. It is usually easier to figure out what is happening on an external modem.