Franklin Delarosa | Fundamentals of Information Systems Security | Project Part 1 | 4/3/2014 |

ISP - Internet service provider
Short for Internet Service Provider, it refers to a company that provides Internet services, including personal and business access to the Internet. For a monthly fee, the service provider usually provides a software package, username, password and access phone number. Equipped with a modem, you can then log on to the Internet and browse the World Wide Web and USENET, and send and receive e-mail. For broadband access you typically receive the broadband modem hardware or pay a monthly fee for this equipment that is added to your ISP account billing.
In addition to serving individuals, ISPs also serve large companies, providing a direct connection from the company's networks to the Internet. ISPs themselves are connected to one another through Network Access Points (NAPs). ISPs may also be called IAPs (Internet Access Providers).
WAN - wide area network
A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).
Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. The largest WAN in existence is the Internet.

Reference
Internet service provider. (2014, March 4). Wikipedia. Retrieved April 3, 2014, from http://en.wikipedia.org/wiki/Internet_service
WAN - wide area network. (n.d.). What is Wide-Area Network (WAN)? Webopedia. Retrieved April 3, 2014, from