Since you asked…
A couple of links
http://www.apple.com/macosx/
http://www.apple.com/switch/
http://www.apple.com/macosx/newfeatures/
Instead of a task bar we have a dock. Instead of there being something in the dock for each window there is an icon for each application and right mouse clicking on its icon gives you all open windows for that application.
You can have tons of applications and windows open without getting your screen all cluttered
up by hiding open applications.
Expose is another way of moving between open windows and applications.
http://www.apple.com/macosx/features/expose/
The Finder (this is what Windows calls Explorer) has Labels. This way you can label something without moving it or renaming it. Great for keeping track of what has been submitted, what needs to be archived, what pics have been used, anything you like, just like labels at that you use in the real world
Oh yeah, I don't run any kind of antivirus software and anything for disk maintenance. I've never crashed, never had a virus and never shut down or restart other then to install something.
Closing the lid on my laptop puts it to sleep and opening the lid wakes it up and it is ready to start using in under 2 seconds.
Macs ship with a one button mouse, but you can use a two button mouse, I do, and then you don't have to go reaching for the keyboard for a right mouse click.