Glossary of web jargon

General Terms

Domain Name:
The actual name of your web site (e.g. 'mywebsite.co.uk')
Domain Registration:
Domain names are not owned outright. Instead they are 'licenced' for (usually) one or two years at a time, although it can be longer. You have a right to renew the registration when it becomes due, but if it lapses someone else may register it (usually after an additional period of grace)
Hosting:
Placing and storing the files that make up your web site on computers (web servers) so they can be read by visitors using their own computers.
URL:
Your complete web address, (e.g. 'http://www.mywebsite.co.uk') which forms a clickable link.
Browser:
The program on your computer that you use for browsing the Internet. Most PCs come with Microsoft's 'Internet Explorer' already installed, but there are others available, such as Firefox, Safari, Chrome and Opera. If you have Internet Explorer, you should try to upgrade to the latest version (currently IE11, and it's free) for better performance and more accurate rendering of pages.
The default browser for Macintosh computers is Safari.

Coding Terms

HTML:
HyperText Markup Language, a code used to 'mark up' text so it is displayed appropriately in the browser, for example with 'headings' distinguished from 'paragraphs'. If used on its own each browser will lay out and style the content according to its default settings.
PHP:
A widely used web scripting language for developing dynamic web sites (i.e. sites which change according to user interaction). Simplifies the inclusion of data from databases.
CSS:
A code used with HTML to define the layout and styling of a web page. Can control positioning of text and images, font size and weight, etc.
JavaScript
A scripting language used to control dynamic behaviour of a page (on or after loading). Can be used to verify form entry, check passwords, show warnings etc., but has many other more 'advanced' uses. Entirely unrelated to JAVA.
MySQL
A database program designed specifically for use on the Internet. The database holds information (such as names and addresses) that can be extracted and inserted into web pages as required.
Web Standards
Ideally all browsers would render pages identically, according to Web Standards but this is rarely the case. Some browsers are more 'Standards compliant' than others. Unforunately Internet Explorer is one of the least compliant, although it has improved since IE6, and is now on a par with the others. (see 'Browser')