[Info-vax] Y3K for PDP-11 Operating Systems
Richard B. Gilbert
rgilbert88 at comcast.net
Wed May 4 01:16:48 EDT 2011
On 5/3/2011 8:07 PM, Bill Gunshannon wrote:
> In article<7d287cc3-4605-49a0-826e-fb92fc14e98d at j28g2000vbp.googlegroups.com>,
> onedbguru<onedbguru at yahoo.com> writes:
>> On May 3, 2:39 pm, Henry Crun<m... at rechtman.com> wrote:
>>> On 03/05/11 20:51, Bob Koehler wrote:
>>>
>>>> >Bob Koehler wrote:
>>>
>>>>>> In article<bdd4fd3d-bb52-43fb-ad9c-746b901f4... at gu8g2000vbb.googlegroups.com>, jjh<jjhu... at gmail.com> writes:
>>>
>>>>>> To make sure I understand, y3K =3D 3000, it is 2011 now...um that is 989
>>>>>> years from now...or roughly 12.5 lifetimes....I seriously don't think
>>>>>> that anyone in the year 3000 will want to know anything about DEC hw
>>>>>> or sw.
>>>
>>>>> You obviously have not read the historical documents.
>>>
>>>> I am curious, I have not read the historical documents.
>>>> Can you please post a link?
>>>
>>>> As for Y3K for RT-11, since the date is presently managed
>>>> up to 2099 as of V05.07 of RT-11, dates starting in 2100
>>>> become the next problem. And since adding support only
>>>> for an additional 128 years seems like a complete waste of
>>>> time, then 3000 CE was chosen as the next minimum step.
>>>> In practice, at least an additional 4000 years would probably
>>>> be added, more than enough to handle dates until the rules
>>>> for the CE (Commercial Events, Common Era, Christian Era
>>>> or Gregorian - all are identical and have a 400 year cycle)
>>>> Calendar requires a rule change to handle years which are
>>>> less than the current 365.2418 days.
>>>
>>>> So Y3K is really just Y2.1K if that makes a difference.
>>>
>>> IIRC there was an article by someone from DEC who promised that RSTS would be
>>> patched to accept five-digit years before the year 9999. However I doubt that
>>> current versions would be supported until then...
>>>
>> question... who cares??? I can almost guarantee that none of us will
>> be here in 2099... and by that time you might be using neural-net
>> technology that will make the PDP look like a TRS80.
>
> Hey, just what xfdo you think was wrong with the TRS80?
>
Other than primitive hardware and primitive software? It was a good
machine in its day but its day is LONG GONE!
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