The term web server can mean two things :
- a computer box responsible for serving web pages, mostly HTML documents, via HTTP protocol to web clients, mostly web browsers
- a software program that is working as a daemon serving (mostly) HTML documents
The most important HTTP Web Servers are :
- Apache server from Apache Software Foundation
- Internet Information Server (IIS) from Microsoft
- Roxen from Roxen Internet Software (RIS)
- AOLserver from AOL
The most popular web server (about 62% of the market) is available from the Apache Software Foundation.
You can find the current web servers statistics from http://www.netcraft.com/survey .