It could be either PowerPoint 2007 or 2010.
.pps and ppsx (for Powerpoint 2010)
Yes. PowerPoint 2007 (and 2010) support loading presentations that were made in older PowerPoint version.
Upgrade to powerpoint 2010
2010 i think
cameltoe
Yes, it is true that PowerPoint is Turing complete. This means that it has the ability to simulate any algorithm or computation that a Turing machine can perform.
Yes, but you will need to download a program from Microsoft's website to allow you to do this.
You can easily run the file of 2013 on 2010. This is because not much changes have been made in the two versions.
No. They do not.
True
You can access Notes Master in PowerPoint 2010 by selecting View tab on the Ribbon and within the Master Views group click the Notes Masterbutton.You can learn more about Views in PowerPoint 2010: At indezine site