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Vacum tubes
very large and expensive
the firts computer in the world
the model is enicac -
vacum tubes
smaler than the firts
IBM 305 is de model
it is a personal computers -
faster than the others generation computers
cheaper and smaller
integret a new circuit -
have a new microprocessor
it the first portable computer
it si smaller and it have a small keyboard -
computer os the future
called artificial inteligent
it have more than one screen