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  Transcript Hello world, I’m Carrie Anne, and welcome to CrashCourse Computer Science! Throughout this series, we’re going to go from bits, bytes, transistors and logic gates, all the way to Operating Systems, Virtual Reality and Robots! We’re going to cover a lot, but just to clear things up - we ARE NOT going to teach you how to program. Instead, we’re going to explore a range of computing topics as a discipline and a technology. Computers are the lifeblood of today’s world. If they were to suddenly turn off, all at once, the power grid would shut down, and cars would crash, planes would fall, water treatment plants would stop, stock markets would freeze, trucks with food wouldn’t know where to deliver it, and employees wouldn’t get paid. Even many non-computer objects - like DFTBA shirts and the chair I’m sitting on – are made in factories run by computers. Computing has transformed nearly every aspect of our lives. And this isn’t the first time we’ve seen this sort of technolo...
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Early computing

 Hello world, I’m Carrie Anne, and welcome to CrashCourse Computer Science! Throughout this series, we’re going to go from bits, bytes, transistors and logic gates, all the way to Operating Systems, Virtual Reality and Robots! We’re going to cover a lot, but just to clear things up - we ARE NOT going to teach you how to program. Instead, we’re going to explore a range of computing topics as a discipline and a technology. Computers are the lifeblood of today’s world. If they were to suddenly turn off, all at once, the power grid would shut down, and cars would crash, planes would fall, water treatment plants would stop, stock markets would freeze, trucks with food wouldn’t know where to deliver it, and employees wouldn’t get paid. Even many non-computer objects - like DFTBA shirts and the chair I’m sitting on – are made in factories run by computers. Computing has transformed nearly every aspect of our lives. And this isn’t the first time we’ve seen this sort of technology-driven gl...
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Electronic computing #2

  Transcript Our last episode brought us to the start of the 20th century, where early, special purpose computing devices, like tabulating machines, were a huge boon to governments and business - aiding, and sometimes replacing, rote manual tasks. But the scale of human systems continued to increase at an unprecedented rate. The first half of the 20th century saw the world’s population almost double. World War 1 mobilized 70 million people, and World War 2 involved more than 100 million. Global trade and transit networks became interconnected like never before, and the sophistication of our engineering and scientific endeavors reached new heights – we even started to seriously consider visiting other planets. And it was this explosion of complexity, bureaucracy, and ultimately data, that drove an increasing need for automation and computation. Soon those cabinet-sized electro-mechanical computers grew into room-sized behemoths that were expensive to maintain and prone to errors. ...
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