puTTY is client software for SSH,Telnet, raw TCP and rlogin
Putty is a terminal emulator application so that it can work as a client for Telnet, raw TCP, SSH and rlogin. This is free software, so you can use it for your any purpose. You can down load PuTTY from here Download .
Simply run the application and then enter the ip address and port, then select what computing Protocol type that you need when using puTTY as a client.
Click on Open button then it will open a black color window as shown in following figures.