On 05/10/2012 03:32 AM, Fred Jan Kraan wrote:
...so, whadda
we gots ?
Most bubble memory modules need a lot more special chips to operate. Intel
(72?? chips) and others made them.
If the 256 kByte appears as normal memory in the PC, it can't be real
bubbles. Bubble memory is not real random access per byte, it reads and
writes 'pages' of 128 bytes. For more info see:
http://www.vintagecomputer.net/fjkraan/comp/pc5000/bubble.html
Fred Jan
I have several of the Intel standalone BPK7220 Bubble memory boards.
They are essentially disks, in that they are fixed sector size block
randomly
addressable devices.
They never lived up to the speed and density of hard disks and they were
not power competitive with most floppies of the same size.
Allison