Desk Toppers are computer accessories that are placed on top of a desk to provide extra space for items such as keyboards, mice, and other peripherals. The term can refer to both MACS (4 letters) and PCs (3 letters). MACS are computers made by Apple, while PCs are computers made by Microsoft and other companies. Desk Toppers are designed to make it easier to access the items on the desk and to keep them organized.