12 Nov
2015
12 Nov
'15
6:49 p.m.
On 11/12/15 7:27 AM, Jon Elson wrote:
LINCtape is essentially identical to DECtape. I think
the directory
format is different, but I think the block format is the same. I think
the tapes are wound in reverse order and the order of increasing block
numbers is reversed.
Actually the block format is different. "Obverse Compliment" encoding
was created for DECtape. LINCtape blocks aren't bidirectional.
The actual spec for the 3M tape can be found at
http://bitsavers.org/pdf/dec/dectape/3M_DECtape_Spec_nov66.pdf
The protective overlay is .04 mils.