Definitions: X-Z

What is XML?
XML (Extensible Markup Language) is a programming language which provides more efficient data delivery over the web. XML is similar to HTML and both are used to describe the contents of a Web page or file.
What is Yahoo!?
Yahoo! is a popular web portal which provides content including the latest news, entertainment, and sports information. The portal also gives users access to other Yahoo! services like Yahoo! Mail, Yahoo! Maps, Yahoo! Finance, Yahoo! Groups and Yahoo! Messenger. The majority of the product offerings are available globally in more than 20 languages.
What is a Zip File?
A ZIP file is a compressed file that needs a file unzipping program, such as CuteFTP or WinZip to decompress.