Small Office Network

[Theresa]

Ok, I'll try to make this make sense..

we have a small office network using our internet access to connect our computers. My computer has our main programs that we share and I have several shared folders for documents etc. We share printers and all those basic features.

My question is this...

While connecting a new computer to our "network" - I noticed the option to create a connection from say, home, to our small office network using an IP address? Did I? Is there such a function? how does that work? I just leave my computer at work ON and connected to the internet and with the correct settings, I can connect from home?

can someone enlighten me to see first of all if this functionality is really available, and if so, how do I do it?

Thanks
theresa