Use Telnet. You need the IP of the other computer to telnet it.
it is not activated by default . So go to uninstall programs-----tun windows features on and off --------find Telnet client than check it to turn it on and click Ok. To use it go to run ------write cmd and type telnet to connect. Syntax for telnet is telnet [host [port]] host=IP port=comp port. Telnet is not secure connection.
Use Putty free download UI interface for secure SSH connection to the host computer.
In any case you need the user name and the password to connect to the host computer, and if the host computer is farewalled dont even bother.
You need to learn Linux to do this so forget it.