How many OS are there at present and what are they?

please clarify my problem how can i know how many os's that i installed on my harddisk from 1st day upto this day and also how many times can i install os on harddisk maximum times

what is an os on a phone? what it is what it can do and how do you up date on one

In trying to build out a more robust QA environment, which leans heavily upon virtualizing all Windows platforms in an ESXi server for testing, and I'm looking to virtualize OS X as well. Due to Apple's licensing terms, only OS X server is available...

AncientImac filter: I searched and didn't find it, I swear. I inheritted an Imac today. 64 meg ram and blue, running OS 9 something. How do I find out how old it is, how much RAM I can stuff in it, and what's the best OS version to run? On further consideration...

other releases apart from OS X, iOS, Linux, Android and Chrome OS. If possible, name some of them.

Someone said I could reinstall windows vista from an OEM key. How do I do that? I want to wipe my hard drive an install a new OS, a free one. My computer has viruses and stuff on it and I want to just wipe everything off of it so I was looking for a...

Looking for recent/current stats on how many apps are for sale for Windows, and the same info for Mac OS X

This message appears when my kids try to play cdrom Monopoly Junior. It wont work,l think l have installed it correctly but it just aint happening OS PROBLEM You cannot play Monopoly Junior on your OS Microsoft Windows NT workstationversion 5.1 Service...

hi i have a blackberry curve 8520 and thats got the os 4 when i go options and go about and it would be there when i go on my blackberry curve 3G and i click on options the about icon is not there i think i got the new os but i want to find out which...