Shared Web Hosting
Shared web hosting services is provided when you have a website that is on the same server as other sites. Shared hosting is very popular in the market. It is cost effective and has a powerful server that is shared by hundreds of other users. On a shared host it is common that each web site have their own domain name.
Nearly all businesses from small to intermediate to large web sites typically require only a fraction of the resources of a complete web server. It would be expensive for these sites to all reside on their own server, which makes shared hosting the perfect solution. That is when a shared web hosting comes into play.
A shared web host will have nearly all the features of a web server including PHP or ASP, MySQL, multiple email address and a much greater amount of storage and bandwidth than with a free host. Most people who share servers have common server resources such as a CPU or RAM.
The downside to having a shared host is lessened security due to multiple clients on your server, and usually total email addresses, databases and domains are not unlimited.