Written by Annie Kwon

Did you know that computer was used since 1600s? Computer means a person who computes the mathematical calculations. Before calculators were invented, a team of people had to calculate hard and long numbers. When the Renaissance Era came around, there was a huge interest in astronomy. The scientists need to calculate the distance between the stars or the size. When mathematics evolved to what we know today, calculations have become so complex, human computer was a real profession until the calculator was able to do complex computing in 1980s.