Spring-cleaning season is almost done, and it is time to finally get rid of that old computer. But be very careful before you sell, give away or recycle it. You could be handing over sensitive ...

A Canadian startup called Xanadu has built a photon-based quantum computer it says should easily scale up. A Canadian startup called Xanadu has built a new quantum computer it says can be easily ...

An experimental computer chip called Ice River can reuse the energy put into it, researchers say. A regular computer chip cannot reuse energy. All the electrical energy it draws to perform ...

Quantum computers are still in their infancy. Presently limited to 100 or so error-prone qubits, the quantum equivalents to classical bits, they are far from supreme calculating machines that are ...