I need to tranfer files from my pc to laptop. How do you do that?

Few methods actually:

1) If both your systems has network cards, network both with a cross cable. Of course you need to configure your system to use Netbuei protocol. And a cross cable look exactly like a network cable, only exception is the wiring inside.

2) There is also a special USB to USB cable which is used to network two systems. You can look it up in any computer shops. This is a fairly easy way to network and transfer files.

3) Of course you can connect via IR (not really recommended because its very slow) or bluetooth also.