Mac mini is a mini-sized personal computer that was introduced by Apple Inc. on January 10, 2005. The Mac mini has dimensions of 7.7 x 7.7 x 1.4 inches and weighs 2.5 pounds. It is Apple's smallest and least expensive personal computer. The Mac mini uses an Intel Core processor, and comes with 2GB-8GB of RAM and 32GB-256GB of solid-state storage. The Mac mini can run the Mac OS X operating system, or it can run Windows operating system.