Web Host:
The computer which has your active website on it. To host a website, a host computer must have proper server software, connection capacity for the traffic that comes to the website and a unique and static internet protocol (IP) address. An IP address looks like 4 sets of numbers separated by periods, i.e. "201.11.123.1" A uniform resource locator, or URL, is a unique name that has been assigned to a static IP of a specific host computer making it easier to find a website.

Web Server:
A computer dedicated to storing the various files that make up Web pages and the protocols needed for communicating with other computers via the Internet.

World Wide Web (or simply Web):
The entire collection of files written in HTML and similar mark-up languages available on the Internet. Clients on the Internet use their browsers to request these files from Web servers and then display them as Web pages. The Web is only a portion of the Internet; other parts include e-mail communication and FTP.

Wireless:
Describing radio-based systems that allow transmission of telephone and/or data signals through the air without a physical connection.