The evolution of computers has made a drastic change since the 1940s.The size of computers from the 1940s were the size of a room. Every computer has a chip with transistors inside of it. The average computer from today has billions of transistors in its chip. Which is about the same amount of stars in our galaxy. A single transistor from the 1940s was roughly a centimeter long.
Transistors have shrunk tremendously since back in the day. Transistors now are 20-70 atoms wide. That is smaller than bacteria. That is beyond microscopic. Billions can fit on a chip smaller than a fingernail.
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