Is it possible to run two operating systems at a time?

I don't think it is possible : there is only one keyboard controller and one keyboard interrupt on a computer OS, and even a second OS running in a virtual machine on the same computer has to use them. If you connect 2 keyboards on the same computer you will in theory never be able to type the same key at the same moment on both keyboards, though you will be able to use them alternatively.

I think it is possible. You can try use virtual machine software. So, for example, you use windows as your main operating system. And then, you can run linux operating system by virtual machine while windows operating system still running. Try that one, but it is not a free software.

On Linux you can have up to eight users on the one system, totally unaware of each other, and not sharing any visible resources. Possible but not necessarily practical! It requires USB keyboards and mice, so you have to somehow get at least 16 USB ports (Yes, it's possible). Eight video cards is where most people will run out of slots! OK, you don't want 8, but two or three users is feasible. There is a Linux-Howto describing this setup somewhere. You'll have to search for it.

Yes it is very easy, you can run more then one operating system on your computer at the same time. You will need to install "Virtual Box" : http://www.virtualbox.org OR "VM Ware" : http://vmware.com I personally like "Virtual box" from Sun Microsystems, because it is very easy to use and very user friendly.

to run multiple OS at the same you can use virtualization such as virtualbox, but i got the impression that what you really want to do is using your computer for multiple users. Some of the responder have already answer if you're using linux you can do that easily.. if you want to run windows as OS you can try to look at this site: http://www.userful.com/products/userful-multiplier

it is not possible to work 2 operating systems in one computer at a time because a motherboard can support one os at a time

The big question is why? Several people sitting on top of each other (monitors limited by cable length) sounds cramped. One crashes and brings the others down, maybe? Your high spec computer just emphasises how little power we really need for most ordinary jobs. An old 1GHz pc on WinXP will still type letters/emails and surf the Net.

The easiest way to split your computer would be into work stations here is a basic how to http://www.labnol.org/software/tutorials/two-users-share-one-computer-work-different/1966/ or http://www.tomshardware.co.uk/forum/237498-34-users-computer-tutorial-simplified and as others have mentioned in posts above Linux allows for multiple stations within the same cpu it is possible to link several monitors and peripherals it is time consuming and it requires some patients but it is possible.

Yes! It is possible. Simultaneously open or working harmoniously if you want or like that. Mac users knows that. Consumer level software applications like Parallel, VMWares, VirtualBox (also available in other Operating Systems like MS Windows and LInux (by Sun Microsystems maker of Java). These software applications mainly called as Virtual Machines. With this kind of applications doesn't need a separate peripherals like keyboards or monitor. Though of course you can have another monitor optionally. You can use KVM boxes or other devices to have additional peripherals or monitors, if you like to share with one CPU with another computer user or more users.

You can run multiple operating systems at the same time on your PC.You need to get VMware Player for that.

On reading the responses we get different views. I have not come across a computer having more than one os. there may be more users but os to be used at a time will be one.

I think it is not possible. There is no two connecting points(except of SMPS)to a hard drive. I do not know the latest news.

for your question on 2 operating systems in one computer yes.I have tried that one by simply partitioning the drives and you can shift from OS to another from time tp time. On having 2 computers in one unit , I tried, adding memory modules that were from another computer which means that all the files in my other computer were placed in my new unit. So I ended up having 4 partitions. Its functioning very well so far. From that time I combined it, I have not encountered any problem. There were only some modifications I made in the set up so as not to entangled the mesh of network :-D. It's fun to tinker the details of the computer. I'm not an expert yet , but I plan to take another course on it early next year. I still have to pass the competency assessment for the one I have just finished.

That was surprising. The only thing I know is that you can have 2 operating system on your pc but you can only run 1 at a time, if you want to load the other OS you need to reboot the pc then choose that operating system to run in your computer. anyways your computer's specification is amazing I just wished I could afford those specification so that I can update my netbook or buy a new one of higher specs.