AstroChip is a language for modelling chips. You can use it for learning the first basics of chipdesign. An intelligent compiler helps finding errors and chips can be tested.
Visio Electronics Chips Stencils
Dr. Hardware 2006 7.5.0e
Powerful hardware detection program
Hardware Catalog 5.1
Hardware Catalog for Windows.
Organize and manage your hardware.
Hardware Icon Set 2013.1
117 icons representing computer hardware