A group of my classmates and I are doing our final project this term and will be creating a software during the time.
I want to be able to track the changes each person submits and allow them to see what changes others have done. Is there any simple version control system you guys can recommend?

Git is pretty good and opensource http://git-scm.com/

I like TFS: http://tfs.visualstudio.com. Of course, it's more natural a choice if you use Visual Studio.

Originally posted by ruirib
I like TFS: http://tfs.visualstudio.com. Of course, it's more natural a choice if you use Visual Studio.

yep, that is what I use mostly due to work

I use C# 2010 Express. Will that work with TFS? Or will I need C# 2012 Express?
Checking out git as well. This is the 2nd time someone recommending it.

several source control options mentioned here http://stackoverflow.com/questions/3314539/source-control-options-for-personal-projects

Originally posted by Davio
I use C# 2010 Express. Will that work with TFS? Or will I need C# 2012 Express?
Checking out git as well. This is the 2nd time someone recommending it.

You can use it with any of the free Visual Studio 2012 Editions: http://tfs.visualstudio.com/en-us/pricing/information/

One good aspect of it is that you can define tasks and assign them to users and monitor progress, etc, other than just keeping versions under control. Use for a team of up to 5 people is free.
If you use Visual Studio, I think you will enjoy the integration. Everything works pretty much naturally. Like Huw, I use it at work, but am using it for personal projects as well.

I've been using Mercurial (Great intro/tutorial) for the last few years and have been very happy with it. Now that Veracity is out and looking pretty good I've considered switching.
No matter what, here's a great book I've started recommending to anyone who will listen: Version Control by Example

I use Subversion at work and its ok. Use GIT outside work and its fab.

I use svn with a plugin in eclipse