The IBM PC and XT systems are very simple and the birth of the x86 platform we still use today. But so many things about them are easy to have issues with, especially when you get your first one. This computer is one a family member of mine got recently and I offered to help them with it when it didn't work because without experience and other parts it can be impossible to even begin debugging issues with these.
Little did I know, they bought basically the worst possible "first" system you could have that was somehow still complete.