Computer Hardware
Learn components of personal computer hardware including input devices, output devices, storage devices, hardware connections and network.
http://www.computerhardware.net/

PC ComputerNotes
Computer hardware tutorials and review questions designed to help the beginning tech prepare for the Aplus (A+) Certification Exams.
http://www.pccomputernotes.com/

Sealed Server
Germane Systems works with military and industrial clients, manufacturing top of the class rugged computer systems, fanless computers, rugged and sealed servers.
http://www.germane.com/