(1) See computer on a stick.
(2) A desktop computer in a small case that takes up very little desk space. There are numerous Windows mini PCs, and the Mac comes in a mini model as well. Configurable with the same CPUs and capacities as full-size desktop computers, a mini PC has no internal expansion, much like an all-in-one computer where all components are housed inside the monitor case. See Mac mini, NUC and all-in-one.