Computer Hardware: History from Analog to Digital

Computer hardware, transistors, logic gates, and CPUs—understand how software runs on real machines

What you’ll learn
✓ How computing and technology evolved from Stonehenge to the 1950’s
✓ The difference between analog and digital computing
✓ The difference between mechanical and electronic computing
✓ How the world got to the point where the invention of the transistor changed everything in computing

Requirements
● No previous experience – just an interest in learning hardware

Description
Computers can feel like magic. You write code, press run, and something amazing happens. But beneath that magic is a long and fascinating story—one that stretches from ancient observations of the night sky all the way to modern silicon chips.

This course explores computer hardware through the lens of history, helping you understand not just what computers are made of, but why they evolved the way they did.

We begin thousands of years ago, when humans first tried to measure and predict the world around them. Early systems like astronomical alignments and mechanical devices laid the groundwork for computation. From there, we move into analog computing, where physical motion—gears, sliders, and scales—was used to approximate mathematical problems.

Next, we explore the shift to digital thinking—systems built from simple components with two stable states. These ideas appear in surprisingly familiar physical devices and become the foundation of all modern computing.

We then follow the rise of real computing machines: mechanical and electromechanical systems, wartime codebreaking devices, and the first electronic computers built using vacuum tubes.

From there, we dive into the revolution of transistors and semiconductors, where computers became smaller, faster, and more reliable. You’ll learn how logic gates provide a clean abstraction over complex analog behavior, allowing engineers to design powerful systems from simple building blocks.

Finally, we explore how modern hardware is constructed using CMOS technology and how billions of transistors come together to form today’s CPUs.

Who this course is for
■ Those interested in technoogy and software develoment to add some knowledge of computer hardwars to better understand programming.

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