Hand-wired core for ROM?

Brent Hilpert hilpert at cs.ubc.ca
Sat Apr 11 01:07:39 CDT 2015

On 2015-Apr-10, at 10:15 PM, William Donzelli wrote:
>> Core RAM and "core rope" ROM sure are often confused, but technically I would disagree that they are similar.
>> They have about as much in common with each other as they do with the power transformer in the other corner of the chassis of whatever equipment they are in, that is to say what they have in common is using electro-magnetics and having a magnetic core.
> You are nitpicking.
> In the field of vintage memory systems, for lack of a better term,
> core and rope are far more closely related than core and any other
> type of memory, or rope and any other type of memory.

Having in common their era of popularity makes them similar to miniskirts and Andy Warhol.
Suggesting they are similar just contributes to the confusion about them.

They get confused because of the use of the word core in both, and they're of the same era, with the result that core rope is misunderstood to be just some minor variation on core RAM, for example as seems to have happened just now in the OP's thread in another forum, so I made the point of clarifying their distinction.

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