Mike Higginbottom

A Digital Garden - frequent growth but a bit weedy in the back corner

Memory Electronics

Created on 2026-05-22

This is just a stub for now but in order to avoid your inevitable disappointment have a lovely link.

From a top level perspective you can think of each bit of computer memory as having the following functionality.

It must retain its state (either zero or one) at least semi-permanently. RAM will often lose its state when power is removed and ROM will often lose its state if left for a period of years, but for our purposes here, it remembers what it is set to.
It must allow external hardware to read its value.
It must allow external hardware to write its value.