Somehow the way you all are explaining is not i wanted...
I want something like...
EXAMPLE:
I put a music into a drive/parition using laptop1. And when i access laptop 2 i can also see the drive/parition and see the files inside. Is this called a network drive or something?
Indeed, DeaconFrost is right, this is a different question now. Let me try to summarize what can be done, this way you can choose out of several possibilities. There are three possible tasks that you might want to achieve:
1.
Transfer files between two computers (this is what I originally understood you wanted to do). What I mean by that is that you have certain files on computer A and you want to copy or move them to computer B (for backup or any other purpose, but basically as a one-time operation). This can be done by (a) using an external drive, such as a USB flash drive or external HDD; (b) creating a direct connection between the computers by using a crossover cable; (c) connecting both computers to a network. In the latter case once may distinguish between a Microsoft network and simply a LAN connection, but both do require a router as far as I know.
2.
Set up file sharing between your computers. This is a feature of Microsoft networking. When both computers are connected to a router at the same time, and you've set up the Microsoft network (or Home network) you can "share" the folders in question. In this case your files remain physically on one of your computers but are visible and accessible from both (or more, if you had more than two).
3.
Network drive (or its more advanced version - storage server). In this case you have at least three devices connected by the router - two computers and a separate networked drive (or another dedicated computer that plays the role of storage or file server). In this case the files are physically residing on the network drive, but can be accessible from both computers (the two computers now need not be on simultaneously). This is similar to using a regular external drive, only now the drive is connected to the router by the ethernet cable rather than to a computer by a USB cable (if that were the case you would have to unplug the drive from one computer and plug it into another to access the files from the other machine).
I think this basically sums up all the suggestions in this thread. Notice that most of this actually requires you to set up a network using a router of some sort. You still haven't told us how exactly do you connect to the internet, so we don't know if your modem can also play the role of a router. In the absence of the router I am afraid that you're limited to options 1a and 1b.
Hope this makes things clearer.