At QSi we develop the world’s first practical implementation of field controlled computing. QSi devices compute without transistors by rearranging a fixed collection of electrons. This is practical, very fast, and very energy-efficient. Our atomic-scale, ultra-low-power field controlled computing is based on unique single-atom Silicon Quantum Dots. Our devices are orders of magnitude faster than the best CMOS devices, but fully compatible with them on the same chip. Our atomic-scale, ultra-low-power field controlled computing is based on unique single-atom Silicon Quantum Dots. Our devices are orders of magnitude faster than the best CMOS devices, but fully compatible with them on the same chip.