Most personal computers come equipped with a version of the Windows operating system, whereas Apple personal computers have a different operating system. Other choices are also available, such as UNIX and Linux.

Why do you think Windows is so prevalent? What do the other systems have to offer that
Windows does not? Who uses the other systems?

2 answers

No one can answer these questions except you. Notice all the instances of "you" in there??

Repost when you have written all this up, and someone here will be happy to critique your writing.
Apple personal computers have a different operating system. Other choices are also available, such as UNIX and Linux. Why do you think Windows is so prevalent? What do the other systems have to offer that Windows does not? Who uses the other systems?