The physical size of a device as measured by outside dimensions. With regard to a disk drive, the form factor is the diameter of the platters, such as 2.5", 3.5" and 5.25", not size in terms of ...

When we refer to the size of a computer or component, we might be talking about its capacity, speed or connectors. Or we could be talking about its dimensions—how much physical space it occupies on ...

Equipment that is smaller than other products in the same category. For example, a mini PC is a small-form factor (SFF) device. See form factor and mini PC. THIS DEFINITION IS FOR PERSONAL USE ONLY.