What is an alias for a file? What is it used for?
Is there a built in camera on the iMac? If so, how do you set it up so ou can grab an image? On Windows the camera is all ready to go when you plug in your computer for the first time.
Why doesn't this "Swiith Basics" menu tell you about opening multiple desktops on your iMac? I had mine for 3 months before tech supoort told me abouut using multiple windowns
You can get a two (real) button mouse with scroll wheel at any office or computer store.
I recommend the Logitech wireless laser one that has a tiny USB plug you leave in the machine all the time, the battery in the mouse itself (included) lasts 18 months.
A alias of a file allows you to place it in the Dock or elsewhere without moving the file from the original location.
It's useful of your burning files from many locations and then don't want to put them all back, you can just delete the aliases.
There should be a video camera embeded at the top of the screen, you can use PhotoBooth in the Applications /Utiities folder to take a video or a picture.
If you want to take a screen shot, then hold Apple/command shift 3 or 4 depending, there are other commands for windows and such too.
I have no idea about your last question