Why My Computer Wants to Forget (How Dynamic Memory Works) – Computerphile

To save silicon, RAM is built to forget. Dr Steve Bagley explains how dynamic memory saves on space but at a cost.

Computer Memory Playlist:
How Autofocus Works:
Why CPUs have Caches:

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham:

Computerphile is a sister project to Brady Haran’s Numberphile. More at


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