Quantum

As computer chips get smaller they can get more done and use less energy so progress is gauged by how small they can get. The number of transistors on a chip have been increasing since chips were invented. The number of transistors on a chip is doubling every two years, something called Moore's Law. The size of a chip is measured in nanometers. A human hair is 100,000 nanometers wide and the smallest chips are 3 with 2 coming in next year. After that things change because the space runs into the limits of physics. At this point the chips will go three dimensional and the whole process of getting smaller starts over again. IMEC, the world's most advanced chip maker is working on this. After that comes something called quantum computing.