Keywords: Serial port communication in Windows 7 using Hyper-terminal and Putty, Putty, Hyper terminal in Windows 7 Some times you need to access serial port of your PC/LAPTOP to perform some actions like if you want to connect a GSM modem or if you are an Embedded systems programmer then to access program or interface your micro-controllers to your system. Free Software here. If you are performing these tasks on either Windows or Linux then you will requires some program that can communicate with your hardware and system. In the old days, Windows used to be provided Hyper terminal but now from Windows Vista they don’t provide such a tool, could not understand the reason though. 🙂 How ever you can still use Hyper terminal in Windows 7 as well as you can use other freely available serial communication utilities like Putty.