Desktops computers were so called because computers of this class are small enough to sit on a common desktop. The main components: the case which encloses the inner parts such as hard disk, processor and ram, sits on a desktop. The monitor then sits on top of the desktop computer case, and an external mouse and keyboard is attached to it.

A typical PC desktop computer videókártya main parts are motherboard, hard disc drive (HDD), processor, ram, graphics card, sound card, heats-ink and cooler fan. These parts can be easily replaced or upgraded.

Desktops computers have improved vastly in recent years, they continually get cheaper, faster, and better. When it come to performance and capacity, Desktops computers are more powerful, reliable, and they hold more data than laptops computers. They are much easier to fix and upgrade and it also doesn't need a computer guru to repair.