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IBM
Herman Hollerith, an American inventor, built a machine to count a census. It used punched cards and gears like the previous ones, but it worked with electricity. His company grew to become the first computer manufacturer in the world -
ENIAC
The first computer called ENIAC is introduced to the public. It was built at the University of Pennsylvania (USA) and operated with more than 17,000 vacuum tubes. It could make 5,000 additions and 300 multiplications per second. -
TRANSISTORS
The second generation of computers starts, which used transistors to process information instead of vacuum tubes. New programming languages such as COBOL and FORTRAN were developed. -
Integrated circuits
Integrated circuits begin to be used in the computers, which increased the processing capacity and reduced the size of the machines. -
microprocessor
The microprocessor appears: a single integrated circuit in which the basic elements of the computer meet. The first personal computers begin to develop. -
APPLE I AND APPLE II
Steve Jobs and Steve Wozniak make Apple I. This computer allowed users to see what they were doing on a screen, unlike other models. Then an improved version called Apple II came, which sold millions of units.
