What is Web Usability?

There's more to Web Design than just making a site look nice.

The Travel and Computer sections of the jsinsurance.co.uk website that I designed and coded the HTML for scored very highly in an independant usability test.

This involved submitting the site to vigorous testing to see how easy users found the site to use and navigate around.

What does Browser Compatibility mean? What is a CMS? What does CSS mean? What is a domain name? What are HTML emails? What does HTML mean? What does web hosting name? What is JAVA? What is JavaScript? What is PHP? What are Rewrite Rules? What does web serving and hosting mean? What is a web server? What it a standards compliant web site? What is Web Usability? What is a web browser? What is a database?