Network Domain Name etc

Hi All
I am a real newbie at this and I have downloaded Apache Server Version
2.2 under windows, but what Network Domain and Server Name do I input
when setting up Apache. Are they my ISP's details or are they only
pertaining to my computer or do I make them up.
Any help would be really great.
Many thanks
Nick

ServerName domain.tld:port

eg:

ServerName microsoft.com:80 # for a registered domain name.

ServerName 127.0.0.1:80 # for local access only ( only your computer )

ServerName 78.3.174.261 # for Internet access ( your Static IP address
)

ServerName 192.168.1.10 # routed access ( your LAN address, also
update HOSTS file)

HOSTS eg:

#loopback

127.0.0.1 localhost

#router

192.168.1.1 gateway

#server

192.168.1.10 www.digitalwolf.org
192.168.1.10 lair.digitalwolf.org
192.168.1.10 masta.digitalwolf.org.org