Here are the ABC of Wiki and Computer terms:

Browser

A program used to browse files. A Web browser browses Internet files. Both Netscape Navigator and Internet Explorer are Web browsers.

COM (COMmunication port)

Refers to the serial communications ports. A computer normally has only two physical serial ports, but each has 2 serial communication ports: COM1, COM2, COM3, and COM4. Usually COM1 and COM3 relate to one serial port and COM2 and COM4 the other. In order to use two devices on the same serial port they both must be set to different COM's. COM's on the same serial port can never be used at the same time or an error will most likely occur.

Data

Simply another name for information. While data is correctly known as bits of electronic information stored for computer use, it can also be information written on paper, information stored in our heads, or any other type of information.

E-mail (Electronic Mail)

The electronic transmission of messages over communication networks like the Internet.
HTML
(Hypertext Markup Language)

The standard language used for creating WebPages or other HTML files.

HTTP (Hypertext Transfer Protocol)

The standard used to transfer WebPages on the Internet.

URL (Uniform Resource Locator)

The address of documents and resources on the Internet. Every item on the Internet has an address. A

Web browser uses the URL to retrieve its intended target.

WWW (World Wide Web)

A group of Internet server computers linked to each other all around world. These computers serve documents and files that have links allowing you to jump from one location on the Web to another. Some Internet servers are not part of the World Wide Web.