What is the average cost of operating systems?

With reference to the operating system the word "good" can change from person to person. One operating system which is good for one person can cause headache for the other person. So as per the requirement and system the operating systems can vary. In terms of popularity and ease of access the operating system from the Microsoft Corporation which is windows 7 ( latest from the Microsoft corporation ). In this operating system we can do multitask more easily. We can browse the web easily and more safely. It is very easy to use such that you can open programs and files you use most in a click or two.You can connect to any available wireless network in just three clicks.You can navigate lots of open windows more quickly. You can easily share files, photos, and music on your home network.It is designed for faster sleep and resume. The time taken to install the operating system is also very low. So windows 7 is a good easy to use operating system. There are many editions for windows 7 which are windows 7 home premium,professional and ultimate. The average cost for the home premium is $119.99,for the professional is $199.99 and for the ultimate is $219.99 (as per the microsoft website ).