Answers
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Web Servers
It stands for HTTP daemon. A daemon is a Unix background
process that implements the server side of a protocol. For example,
FTPd is the File Transfer Protocol daemon.
HTTPd is the program you would run on a Unix platform to estalish a
web server. Daemons are unique to Unix (which some would call
a demonic OS ;-). On other platforms, such as Microsoft Windows NT,
the web server is a background process implemented as a system service.