Computers Made Out of DNA, Slime and Other Strange Stuff

Everybody knows a computer is a machine made of metal and plastic, with microchip cores turning streams of electrons into digital reality. A century from now, though, computers could look quite different. They might be made from neurons and chemical baths, from bacterial colonies and pure light, unrecognizable to our old-fashioned 21st century eyes.
Image may contain Plant and Algae