when trying out our machine for apache or SVN, i discovered that people can really use

http://pc_name

when our computer is known as "pc_title" along with other PC on a single network can access that PC with that URL at port 80.

along with a mac can connect with my PC shared assets by Finder -> Connect with Server -> smb://pc_title

they are great. exist similar stuff that are wonderful however i just haven't discovered?

http://pc_name works only, if your DNS server within the network is active which has designated the title towards the pc named "pc_title" or maybe the "hosts" file is modificated.

Maybe you will find a great deal stuff you haven't discovered. Your question is not specific enough for any good answer.

SSH?

As Martin states: You are question is not specific enough.