Thinking Machines – How Computers Became Humanity’s Second Brain

Blueprints of Progress: The Inventions That Built Our World by Robert Stevenson

Episode notes

This episode explores the evolution of the computer, from early human “computers” who solved equations by hand to the creation of machines that could calculate faster than any person. Visionaries like Charles Babbage and Ada Lovelace imagined programmable machines in the 19th century, but it was during World War II—with devices like Colossus and ENIAC—that electronic computing became reality.

Transistors and microchips miniaturized computers, leading to the personal computer revolution of the 1970s and 80s. With the rise of the Internet, computers became interconnected, transforming communication, work, education, and entertainment. Today, computers are embedded in everything—from phones and cars to medical devices and satellites—while

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