Describe the four basic types of microcomputer system units.

§          Desktop (or Tower) system units: typical computer configuration meant to stay on or near a desk; tends to cost less than other systems with similar power.  Easiest to expand, but lack portability

§          Notebook (or laptop) systems: about the size of a small pizza box, is portable and often as powerful as desktop configurations

§          Tablet PCs: a laptop with a digitized writing surface that will recognize handwriting

§          Handheld computer systems: small, less powerful systems, but they fit in the palm of your hand.  Also know as PDA – Personal Digital Assistants