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computer.md

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 The word *computer* can be defined in many ways and can also take many different meanings; a somewhat common definition may be this: computer is a machine that automatically performs mathematical computations. We can also see it as a machine for processing [information](information.md), manipulating symbols or, very generally, as any tool that helps computation, in which case one's fingers or even a [mathematical](math.md) formula itself can be considered a computer. Here we are of course mostly concerned with electronic [digital](digital.md) computers.
 
+Electronic digital computer turned out to be one of the greatest [technological](tech.md) inventions in [history](history.md) for many reasons -- firstly computers allowed creation of many other things which previously required too complex calculations, such as highly complex planes, space rockets and undreamed of factories (and, of course, yet more powerful computers which is why we've seen the exponential growth in computer power), secondly they offered extremely advanced work tools like [robots](robotics.md), virtual 3D visualizations, [artificial intelligence](ai.md) and physics simulators, and they also gave us high quality, cheap [multimedia](multimedia.md) and entertainment like [games](game.md) -- with computers anyone can shoot video, record music, carry around hundreds of movies in his pocket or fly a virtual plane. Most important however is probably the fact that computers enabled the [Internet](internet.md) -- by this they forever changed the world.
+
 We can divide computers based on many attributes, e.g.:
 
 - by continuous or discrete **representation of data**: [digital](digital.md) vs [analog](analog.md)