What's beyond silicon? There have been a number of proposals: protein computers, DNA computers, optical computers, quantum computers, molecular computers.
Manu Prakash, an assistant professor of bioengineering at Stanford, and his students have developed a synchronous computer that operates using the unique physics of moving water droplets.
A quantum computer works in a totally different way from a classical computer. Quantum bits or 'qubits' can exist in a superposition state of both zero and one simultaneously.
Researchers at the MIT Media Lab are developing a new, wearable device that turns the user's thumbnail into a miniature, wireless track pad.
Computer scientists at Saarland University and Carnegie Mellon University are studying the potential use of the human body as a touch sensitive surface for controlling mobile devices.