Upcycling laptop memory for single-board computers?

Raspberry PI with removable RAM

Microlesson: Whenever the CPU wants to read some data from RAM, it puts the data’s address on the address bus. The RAM then reads in this address and presents the data on the data bus. When the CPU wants to write back to RAM, it will put data and the address on the corresponding busses. This all happens extremely fast; it’s actually one of the fastest ways a processor can exchange data with an external device.

Ryan Walker
Interrupt Labs INC.



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