How computer looks like by the next few years?

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I have been thinking of how the computers would be much likely or how it looks like by the next few years? I have read and saw an article featuring the Future PC, which looks like a simple pen mounted in an iron stand and projected light signals, one at the wall (for monitor) and the other in your desk (keyboard). This future computer used bluetooth technology to transmit signal. Have you seen another picture of future pc similar to this one? Or do you have any futuristic idea on how the personal computer will be capable of or how will it looks like?