types of pc motherboard name

Motherboard connects every component of a computer and so its AKA "backbone of PC"

If you MAC is old then it uses a different motherboard than a PC. These days MAC also uses intel processors so in theory you can use the same motherboard as PC but there may be problems in adding the peripherals like MAC's keyboard and mouse to the PC motherboard and vice-versa. It all depends upon what you have got.

Buy a new motherboard and replace the old by the PC engineer that fixed the same PC unit.

Your PC has a motherboard that you can connect your memory card to. If it is a desktop, open the side of the box and the motherboard is where everything is connected to.