Comparing the depth of field of two types of flatbed scanner, a CIS and a CCD model.
Tools For Collecting. Input Devices Wikipedia.com Numeric keypads- A numeric keypad, numpad or tenkey for short, is the small, palm-sized, seventeen key. - ppt download
File:Scanner.view.750pix.jpg - Wikimedia Commons
Requirements – image capture. | Scase77's Blog
TOOLS: Flatbed scanner for PCBs, sketches, bookkeeping – Dangerous Prototypes