And there are many other smartwatches, pendants, clip-ons, bracelets and patches embedded with sensors being developed by start-ups.

CNN: The wave of wearable computers

It has also developed a "smart carpet", which is embedded with microchips and sensors that collect information about what is happening on the carpet's surface.

CNN: Something clever up your sleeve

Engineers working in the field of pervasive computing are aiming to create smart fabrics, embedded with computer chips and sensors that will enhance and possibly even save our lives.

CNN: Future dress code: Very smart

In their book Messrs Bell and Gemmell predict that people with chronic ailments will one day have sensors embedded directly in their bodies that can transmit data about their vital signs wirelessly to other devices such as their phones.

ECONOMIST: Technology will become even more personal

Designers talk of digital walls, which have sensors embedded so you can interact with them.

BBC: Edible edifice: Building the offices of tomorrow

Apple has embedded a fiber-optic lighting system to illuminate the keyboard and bolstered it with sensors that can tell when the ambient light in the room begins to dim.

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