2 answer(s) found.
Before computers, there were several important inventions in human history. Among them, the telephone is the one invented by Alexander Graham Bell. It has revolutionized communication with real-time conversations regardless of distance. It is mainly a base unit that is connected to a wire and a handheld receiver. When people speak, their sound is converted [...]
Out of many inventions before the age of computers, as far as I know, two significant devices were invented at that time. One is the telephone, and the second is the calculator, which played a significant role during that period. The telephone line was crucial because whenever people wanted to connect with each other, they [...]