Yes, they have wifi and also are fully Bluetooth ready.
It comes with all new iMacs, and costs $70 for current iMacs.
Anything a Windows PC can do and more.
1
Aluminum and glass.
iMacs start in under 8 seconds. After the loading sequence, you do not need to wait for the programs to work. Everything is ready.
Yes. Any computer can get a virus.
The first iMac was produced in 1998.
A whole lot
iMacs are designed, created, manufactured, and sold by Apple, Incorporated. Apple is located in Cupertino, California and has been around since 1976.
Variously iBooks, iMacs, MacBooks.
Yes, you can get it at the Apple Store online.
iMacs usually don't overheat. If for some reason the fan fails, there is usually a thermal cutoff point where the computer will turn itself off to prevent damage (e.g fire).