Uploaded August 2025 | Updated September 2026, 1 week ago

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TechBits: In 1947, John Bardeen, Walter Brattain, and William Shockley at Bell Labs invented the transistor, a tiny device that could amplify and switch electronic signals. This breakthrough replaced bulky vacuum tubes, made electronics smaller and more reliable, and laid the foundation for modern computers, smartphones, and nearly every electronic device we use today.

Watch the full Tech Evolution Timeline video for groundbreaking inventions in history:
youtube.com/watch?v=RcwP8lT8f48