Need to know if it is an iMac or Mac Pro?
If you are talking about an iMac you will have to take it apart. How you accomplish this depends on the year it was made. YouTube has plenty of videos showing how to take an iMac, Mac Mini, or Mac Pro apart.
The Mac Pro Desktop has a Mac Pro Desktop motherboard designed by Apple and incorporating many innovative features such as a removable tray mounting for the CPUs (Two Quad-Core Intel Xeon processors) and RAM to enable easy upgrades.
Online or at an Apple Store. Yes, there really are large stores that are not online that are called the Apple Store.
No. The processor in any computer is engineered for the particular motherboard. It is unlikely that the desktop and laptop processors will be compatible.
Yes, as long as you are not into overclocking.
Mac software can only run on an Apple Mac computer either a laptop (such as the MacBook) or desktop (such as the iMac).
Most desktop microphones with a USB connection will be recognised by a Mac.
remote desktop for mac
yes
No lol
Install the motherboard first. The drives will have wiring harness to connect to the motherboard.
Only a MAC motherboard will be compatibile with your Mac operating system.
When you remove an icon from the desktop on a Mac, you do not put the application in the trash only the desktop icon.