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ISP(1) See in-system programmable.
(2) (Internet Service Provider) An organization that provides access to the Internet. Connection to the user is typically via DSL, cable or FiOS; however, ISPs can deliver service via satellite, dial-up, ISDN, private lines and wireless. Customers are generally billed a fixed rate per month, but other charges may apply. See DSL, cable Internet, FiOS, T1, T3, WISP and SISP.
Your Own Web Site
ISPs often host a small Web site for their customers, allowing them to have a presence on the Web. However, the Web site may be limited to a maximum number of pages, and the domain name of the ISP becomes part of the customer's URL address. For a fee, an ISP may host a Web site that uses its customer's proprietary domain name (see Web hosting). See IXP and backbone.
|How They're Connected|
|Small ISPs hook into regional ISPs or directly into major backbone providers. This diagram shows a local ISP confined to a single county, and a regional ISP confined to a state. In practice, ISP networks often have irregular boundaries that span jurisdictions.|
|This diagram shows how a typical, small ISP might be connected to the Internet.|