Part 1 of Essay
This project explains the , starting from Howard Aiken’s Harvard Mark I to present day time. Although I have not gone over all of the models in my report, I have chosen those which I feel have had the greatest effect on the computer world. I will show how in just forty years, computers have come from complex, slow, room-si ....

Part 2 of Essay
.... which was made up of 78 adding machines and calculators. Although Howard’s model was automatic, it was controlled by instructions punched into a roll of paper tape. There was a need for an all-electronic machine. This project was taken up by Dr. J. Presper Eckert Jr., and Dr. John W. Mauchly, with help from a few of their colleagues, in the spring of 1946. For two and a half years, they work diligently to construct a machine called the Electronic Numerical Integrator and Calculator, or ENIAC. This machine ....