These are domino tags. They can be placed on top of the Surface computer, which then recognises commands from the pattern of eight dots.
These tags can be placed on a variety of objects and different commands can be programmed into the Surface system. Microsoft is developing domino tags with 90 dots to increase the number of options.
Google Chrome OS demonstration
Vice President of Product Marketing Sundar Pichai gives a virtual tour of Google's new operating system, Chrom… Watch it now
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