[Info-vax] Backup TK50 tapes

[Johnny Billquist]

On 2013-02-25 15:57, Paul Sture wrote:
> In article <kgb9r6$mac$2 at tdi.cu.mi.it>, supervinx <nessuno at libero.it>
> wrote:
>
>> Il Sat, 23 Feb 2013 13:39:34 -0500, Stephen Hoffman ha scritto:
>>
>>> On 2013-02-23 17:41:38 +0000, supervinx said:
>>>
>>>> Well, let's see again what I've understood...
>>>
>>> 0) No one willing uses tape boot.
>>>
>> Hmmm ... so why do boot tapes exist ?
>> I know that booting from TK50 takes more than an hour ...
>> But for an historical purpose I'll save those tapes.
>
> I first came across bootable tapes in the IBM world circa 1980 and yes
> the IBM 4331 could boot from a 9 track tape.

DEC was doing bootable tapes for the PDP-11 pretty much from the start, 
which place us around 1970. Not sure about other DEC systems, such as 
the PDP-10. I don't remember ever seeing bootable tapes for the PDP-5, 
PDP-8 or PDP-12. And I don't know about the 18-bit series...

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol