Which technological innovations along history allowed the appearance of the computer

According to the history of computer, vacuum tubes had kick started the invention of computer.

1st generation used “Vacuum tubes” and then the next generation used “Transistor”. Third generation used “Integrated circuits” and the fourth generation used “microprocessor” and the fifth generation used “Super computer”. Now it’s the development of Robots.

Industrial revolution gave birth to the innovation in the technologies. In each and every period people developed started using abacus, slide rule, punched cards for calculations. These gave rise to the latest technology innovations.

add the following answer

it would be a. excessive network collisions or d. slow connectivity between devices those would be my answer.