httpd is the web server (doesn't matter what program you are using)
do not remove httpd by any means
since you are using slackware 10.1, then your httpd is apache 2.0
this is the best you can get in a web server, it will blow the pants off of anything else out there.
you need to read a whole lot before you start messing w/ such things as servers/daemons on your linux system
check out The Linux Documentation Project
and start with reading the Linux Users Guide, then read a whole bunch of Howtos and the Linux Network Admins Guide. (save this for last!!)