Battery-less computers can now be reprogrammed wirelessly

Computers are getting better with each day. They are becoming so energy-efficient that we can now think about cutting the final cord that connects them with the outside world: a power supply cable. A great example of such machine is Computation RFID: a small device converting ambient energy (from nearby radio transmissions) to communicate and obtain power for computing. Their size and perpetual lifetime allows them to be embedded in anything, living organisms included, once for the entire lifetime. However the main benefit of Computational RFIDs was nullified by the need for a cable every time a battery-less computer required maintenance or update.

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