DECtape ancestry (Kyle Owen)

[Michael Thompson]

>
> Date: Sat, 20 Mar 2021 16:21:44 -0400
> From: Kyle Owen <kylevowen at gmail.com>
> Subject: Re: DECtape ancestry
>
> What systems took advantage of the bidirectional nature?
>
> Kyle
>

ADSS on the PDP-9 does an interleave of 6 when reading/writing to the
DECtape. If it runs off the end it reverses direction and keeps going. I
have seen some library files take three passes of the DECtape to fully
search.

-- 
Michael Thompson