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  2700–2300 BCE
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  The Pasaline
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  Counting with cards that had holes in them while weaving
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  first computer like machine by IBM
Was 52 feet long weighed 50 tons and had 750000 parts - 
  
  Contained 18,000 vacuum tubes
Weighed 30 tons - 
  
  
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  The microprocessor, on a single chip
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  Stephen Wozniak and Steven Jobs in their garage
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  More affordable
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  First PC introduced by IBM
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  19th century census punch card to store data