Remembering RAMAC

[Dwight K. Elvey]

>From: "Vintage Computer Festival" <vcf at siconic.com>
>
---snip---
>
>I was thinking more in terms of space.  A disk is much more efficient in
>this regard.  You can stack N times the number of disks in the same space
>that a drum takes up.
>

 The problem with disk, of course, is the variable BPI.
Today, with the electronics so cheap, the CD-ROM is made
with a spiral track and it runs at a constant BPI by
changing the rotation speed as it reads the disk.
Dwight