On Wednesday 27 October 2004 05:06 pm, Allen wrote:
On Wednesday 27 October 2004 16:59, JAMES KNOTT wrote:
--- Darrell Cormier
wrote: Sorry, I forgot to include the link.
The core plane I have, from the Collins computer, looks very similar to the one in "Figure 4. Magnetic core plane".
Incidentally, back in the late '50s, IBM was able to reduce the cost of core memory to $1 per byte. There's a good description of the development of core memory, in the book "IBM's Early Computers".
=o
Was that a thousand dollars for a Meg of RAM???
No, it would be a million..... per year.... (but I'm not quite sure it was that high but it was mighty expensive.) But one day one of the IBM PC (Aug 1981), it *was* $1,000 for a meg of PC ram. I remember paying $640 for an add-on memory board of 640K. (or was it 64K? which would make it $10,000 per megabyte)