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Obsolescence is the curse of electronics: no sooner have you bought a gadget than its hardware is outdated. A new, low cost type of microchip that can rearrange its design on the fly could change that. The logic gates on the chip can be reconfigured to implement an improved design as soon as it becomes available—the hardware equivalent of the software upgrades often pushed out to gadgets like phones.The new chips—made by a startup called Tabula—are a cheaper, more powerful competitor to an existing type of reprogrammable chip known as a field programmable gate array (FPGA). FPGAs are sometimes shipped in finished devices when that is cheaper than building a new chip from scratch—usually things that are expensive and sell in low volumes such as CT scanners. More commonly, FPGAs simply provide a way to prototype a design before making a conventional fixed microchip.
