Credible quality characteristic info on Windows and Mac OS

Hi,
Can some one give me few credible links on which are related to quality characteristics on Microsoft Windows and Mac OS.
These things may include, performance, reliability, security, integrity, efficiency, usability etc.

I have to write a essay on this, therefore I need some credible link to add on to citation.

Thanks,
Amila E J

And you expect us to do your work for you? And what happened to Google? Did its search engine break?

Last time I checked its working fine. Thanks for asking

And actually I found some links. Feels like not enough. All I wanted just few more links to refer.
Most of the results are from blog posts which are not credible.
And if you know some places please do share.

Thanks
Amila E J

Then you should have said that to begin with. Your original post implies that you did do any work up to this point and that you were expecting us to do it for you. We are here to help you, but not to do your work for you. See: DoYourOwnHomework

And I do apologize for sounding harsh in my first answer. I could have handled that better.

For the sake of completing the thread, these are the links I found out. Hope this would be helpful to someone

Link 1

Link 2

Link 3

Link 4

Link 5

They are interesting links. Thank you. They will probably need to be updated in a few months, however.