How Can I Understand Computer Hardware from Scratch?

October 19, 2025 5 answers
Asked by CuriousLearner42
I'm looking to grasp how computer hardware works from the very basics, but I'm feeling pretty overwhelmed as I have no prior experience. I've tried reading some books and courses, including nand2tetris, but they just confuse me even more. I want to learn this for personal growth and understanding, not necessarily for any job requirement. Do you have any suggestions on how to effectively approach learning about computer hardware? Am I just not cut out for this?

Answers

BlinkyBits
Understanding computers is a long journey, so prepare yourself for an adventure! If you want a solid foundational knowledge, consider the history of computers first. Learn about transistors, logic gates, and boolean algebraโ€”all crucial in grasping how modern computing works. Plus, these topics will help you frame your research and questions better as you go along.
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QuickFix101
It's great that you're seeking resources. What exactly are you finding confusing? Sometimes it's better to focus deeply on the books youโ€™ve already got instead of constantly searching for new materials. Take your time with the reading and ensure you're completing the exercises. Understanding each step before moving on can really help to solidify your grasp on the material.
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LearningLoop77
Check out Ben Eater's YouTube videos! He breaks things down really well, and his hands-on projects are super educational. Once youโ€™ve watched his content, you might find you can revisit those books with a fresh perspective, making them much easier to digest.
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TechExplorer88
It sounds like you're really diving into a challenging yet fascinating topic! One tip is to focus on your goals with this knowledge. Are you just learning for fun, or do you have specific objectives? If it's just for personal enrichment, don't rush through it. Start from the very basics and consider exploring the history of technologyโ€”it's actually quite interesting. Understanding concepts like what memory is can give you a fun context. Look into things like 'magnetic-core memory' from the 40s for a cool historical angle!
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GizmoGuru21
Try a 'bottom-up and top-down' approach! Begin with the fundamentals of electronicsโ€”get familiar with concepts like transistors, logic gates, and flip-flops (which are basically 1-bit memory). After that, dabble in some simple programming to get a feel for how CPUs work. Learning assembly language for a simple CPU can give you a great grounding. Once you grasp these parts from both directions, youโ€™ll have a solid foundation to build on!
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