The Arduino Project Gets a Core Memory Accessory 46
Stoobalou writes "A pair of mathematicians have created an electronics project that nostalgic computer buffs will likely recognize straight away: a magnetic-core memory shield for the Arduino electronics prototyping platform." The creators' web site has more, including schematics, if you'd like to make your own.
Re:Retrieving old data (Score:5, Informative)
It's non-volatile - the last data written will still be there. What you're probably thinking of is destructive read - you need to re-write the data after reading it, because the read operation results in the bit being erased.