On 02/04/2016 08:25 PM, Jon Elson wrote:
On 02/04/2016 08:57 PM, William Donzelli wrote:
Some models of 3420s were 7 track.
Yes, I suppose there was a need in some installations to handle old,
archival tapes. But, I certainly never saw one. Most sites got rid
of their 7-tk stuff as soon as they could.
Some 6-bit systems hung around for a very long time. E.g. CDC CYBER
170/180. 7-track drives for those never really went out of fashion
until well into the 1980s.
Here's a 1981 CW article that specifically mentions the CDC 667 in the
drive inventory of McDonnell Douglas automation.DP center:
http://bit.ly/23MFZOb
--Chuck