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How does Computer Memory Work? 💻🛠

Branch Education · 5.5M views · 2022-11-04 · 35:33

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Overview

A 36-minute animated deep dive from Branch Education into how DRAM works. It shows how memory connects to the CPU and how billions of bits are stored in nanoscale capacitor cells. It also covers why DRAM sits between SSDs and the processor.

On Hacker News

Commenters recommend it as a clear, well-animated explanation of memory, especially for visual learners.

Recommended by 5 HN people across 4 months · HN mentions 2022–2023

Topics

Computer architecture & CPUsHardware (other)Semiconductors & chip manufacturing
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dramrammemory timingshardwareanimation

What people said

superkuh · 2023-04 · Strong recommendation

I hate to be the guy recommending youtube videos but if you want to understand how DDR5 multiplexing works and this article doesn't do it for you check out the amazing visualization "How does Computer Memory Work?" [VIDEO] . A lot of it is applicable to all DDR but it specifically covers DDR multiplexing starting around 9 minutes in. It is both detailed enough and clear thanks to the simplified visuals.

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qwertox · 2022-12 · Strong recommendation

Yesterday I got presented an ad disguised as an educational YouTube video, but the content was really good and is worth watching if you have some time on your hands. "How does Computer Memory Work?" [0] Uploaded 1 month ago, 35 minutes playing time. It even goes into explaining what the timings mean while showing an animation for it. [0] [VIDEO]

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Cort3z · 2023-10 · Recommendation

DDR ram is refreshed every 64ms (varies by DDR generation and specific chips). Branch Education has an excellent video on this named "How does computer memory work?"[1]. It would still take an exceedingly long time to reach a trillion, but it's still pretty frequent. [1]( [VIDEO] )

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Sources

Video by Branch Education, played through YouTube.

Data and selection notes

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