Operating system that's needed for running any software on the computer. One crucial part would be the Graphical Interface.
Windows 7 is commonly used on client computers.
Yes, Windows 10 will be free to people with windows 8.1
Almost all computers, with maybe a few exceptions, have Windows 7 pre-installed on them. That is, only if it is a Windows computer, as Apple computers don't have Windows OS.
No, it is for computers too
2010 I believe
No, Windows 7 is an Operating System released by Microsoft, for use on desktop and laptop computers, though sometimes found on tablet computers as well
Did you mean, "What are the NEW computers", or what are the NEWEST computers? If you did, Windows 7 & Windows Vista are the to newest versions of windows computers, unfortunately I don't know the newest versions of Mac and Linux. I hope I answered your question!
Yes. Windows 10 was released in 2015 by Microsoft. It is successful and modern computers use it.
Windows 7 cannot be used on multiple computers. The license is only good for one computer unless you buy a corporate license which allows you to install it on multiple computers.
To make a Powerpoint presentation on Windows 7, you need to buy a pack like Office '07 Home and Student or Office '10 Home and Student. However, Powerpoint viewer comes standard with Windows computers.
The faster windows Operating System depends upon what you are planing to install it on. But in the majority of cases, windows Xp is faster on older computers. And Windows 7 is faster on newer computers.
No, Windows 7 CANNOT be used on any computer. Windows 7 can only be used on computers that have 3 gigabytes (gigs) of RAM.