The “Annapoorna Scheme” was rolled out by Bengaluru incharge and Deputy Chief Minister D.K. Shivakumar in Bengaluru on Monday and the scheme combines technology (issuing smart cards) with compassion.

Most of these devices rely on printed circuit boards (PCBs) made of copper, fiberglass, and epoxy resin. These are the flat, usually green board inside your gadgets that holds all the tiny electronic ...