Basic terms you need to know (part 1)

Disk space / Web space: Indicates how much space does it provide for you to put contents in it. Usually hundreds of MBs or several GBs.

Bandwidth: Indicates how much traffic is allowed. It may be in Daily or Monthly basis.

PHP: A server-side scripting language which makes the pages dynamic. You won't need this is you only have static, plain HTML pages. Official website: http://www.php.net/

..to be continued..