If the computer has an x86 (Intel, AMD or VIA) processor and a traditional BIOS, yes.
A PC is a Personal Computer. A Mac is a personal computer. A Mac is a PC. A Mac with an Intel processor can run the Windows operating system (or Linux or many others) if needed.
The OS that change all the time is Linux, and most of what MS Windows supplies was first made on a Linux variant. Ubuntu is working on a new concept - Unify, is worth looking at.
All pcs can run Linux. Specifically, you can download and run Ubuntu, which is Linux based. Any PC can run Ubuntu and/or dual-boot Windows and Ubuntu.
Generally yes. Most Linux versions will work on a standard home PC, and many will work on one too old and slow to run Windows.
If you mean OS systems then that would be Microsoft's windows ( the PC my favorite) apple's Mac and Linux
A PC is a Personal Computer, doesn't matter what the operating system is necessarily. Could be Linux, Windows, etc. The only distinguishing factor is the Mac.
You can, absolutely. Linux's bootloader is, in fact, designed for multi-boot.
The best mini PC really depends on what you plan to use it for. For everyday work, browsing, and streaming, a basic model is usually enough. If you want something compact that can also handle gaming, look for a stronger processor, enough RAM, fast SSD storage, and dedicated graphics. For example, the AMD Ryzen 7 7640HS Mini Gaming PC from Magic Micro is worth considering if you want a small system with gaming in mind without taking up much desk space.
The OS that change all the time is Linux, and most of what MS Windows supplies was first made on a Linux variant. Ubuntu is working on a new concept - Unify, is worth looking at.
look in your users manual
There are two types of interface.. 1. User Interface 2. Application Interface
Currently, yes, it is just for Windows based PC's. However, you might be able to get it to run on Linux and/or MAC with a windows emulation software, although, that is not officially supported.