Close your eyes. Think of a computer. What do you see#x2026;#x003F; For many industrial and academic professionals today the image of a PC is conjured in their minds. Perhaps it will be the one sitting on their desk at work or on a colleague's. Perhaps it is the one in the glossy brochure which arrived in their mail promising all sorts of bells and whistles. But what really is a PC, and what can it do#x003F;
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