Many original iMac computers work just fine, although if they are running the original OS (Mac OS 8 or 9), then they are most likely out of date from a technical standpoint. While they can still perform as a standalone computer, they may find some difficulty navigating today's internet, since there are few, if any, Web Browsers still developed for the older Mac OSes.
The iMac is a fantastic computer.
No, but you will still have to use it...
No, the PC version will not work on an iMac. You need to get the Mac version.
Generally speaking cloned desktops will function just as well as the original.
Click the link.
Yes
he made Microsoft computers and currently still is
Yes, it will work on Mac.
Apple iMac computers will not play Blu-Ray discs correctly even if you can get them to play with an external drive and some software. The quality will not be as good as a dedicated Blu-Ray player.
Routers do not require presence of other computers to work. You can have even a single router in your network with no computers connected and will still work.
Mine works fine.
Yes, it works fine.