HTML = language of web pages
tag = instruction in HTML <in brackets>
source code = the HTML code underlying a page.
head = informational part of web page, not visible in the browser window
body = actual visible part of page
browser = program to view web pages and make hyperlinks work.
web server = host.computer storing web pages
URL = address of a page on the internet

• server name (with or without subserver)
• path
• filename
• extension