PS/2 Ports on a PowerMac?

so does that mean the the Intel MacBooks use Socket P CPUs and the PowerMacs use Intel Socket 775?
You are talking about Intel motherboards that were designed for Windows PCs. Macs are not Windows PCs. Power Macs use Power PC processors from either Motorola (now Freescale) or IBM. The G4 was manufactured by the former. The G5 was manufactured by the latter. Neither had anything to do with Intel. In the case of Intel-based Macs, those are also not Windows PCs. Windows PCs still use ancient BIOS firmware. Macs use EFI. EFI can emulate BIOS, but it is not BIOS. Intel-based Macs do not use Windows PC motherboards.

MacOS X can be installed on Windows PC hardware. Such a computer is known as a Hackintosh. Hackintoshes violate the Apple EULA for MacOS X. It is a violation of the rules of this forum to discuss Hackintoshes here.

I will close this post by stating the obvious. The processor socket must be physically compatible both geometrically and electronically with the pins of the processor inserted into the socket. However, the processor is just one IC out of many components on a motherboard. Even if specific model Macs share the same processor with specific model Windows PCs, virtually nothing else between the CPSs is interchangeable.
 
so does that mean the the Intel MacBooks use Socket P CPUs and the PowerMacs use Intel Socket 775?

And the short answer is:
MacBook processors are soldered permanently to the logic board - no socket.
PowerMacs may have the processor on some type of card, and may be replaceable, but in no case is that a processor that will change how it works, or the architecture that it will use natively. If your question is, can the PowerMac be upgraded to an Intel processor? that will be a No, not possible.
There have been upgrade processors for G3 and G4 towers, but not too many now - the sales interest has kind of dried up (for obvious reasons)
 
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