VT100 and/or VT105 rescued from scrap
bqt at update.uu.se
Thu Oct 22 10:12:37 CDT 2015
On 2015-10-22 17:07, Paul Koning wrote:
>> On Oct 22, 2015, at 10:36 AM, Johnny Billquist <bqt at Update.UU.SE> wrote:
>> On 2015-10-22 16:32, Paul Koning wrote:
>>>> On Oct 22, 2015, at 9:15 AM, Johnny Billquist <bqt at Update.UU.SE> wrote:
>>>> The VT100 is field upgradeable to a VT101 (I think) or a VT102 (I know). However, the VT102 is not the same as a VT100 with the added AVO and printer. Functionally they are the same, but inside they will look different.
>>> That doesn't sound right.
>>> The way I remember it is that the VT100 comes in several configurations (for example AVO or not) and you can field modify it from one to another.
>>> On the other hand, the VT101 and VT102 are fixed configs (that is, not intended to be field upgradable), roughly matching the base and AVO versions of the VT100 in functionality.
>>> It may be that you could, with enough knowledge, turn a VT101 into a VT102 or vice versa, but that wasn't a supported operation from what I remember.
>> Paul, I think you just said the same thing I did. Did you misunderstand me, or did I do a typo somewhere?
> No, you said that the VT100 is field upgradeable to the VT101 and/or VT102. And I said that there are several VT100 variants, and that a VT100-xx is field upgradeable to a VT100-yy. But no VT101 or VT102 is field upgradeable to anything else, nor is a VT100 field upgradeable to a VT101 or VT102.
What I said was that the VT100 is field upgradeable to a VT102, but that
this would be a functional equivalent to a VT102. They will look very
different inside. I said that the VT102 is not the same as a VT100 with
the added AVO and printer port.
Read the full paragraph.
> To elaborate: the VT101 and VT102 are a generation after the VT100, each fixed config. I'm guessing that the fixed config thing was done, as well as the other changes in the details, to reduce cost. Cost reducing a product while leaving its features largely untouched was a standard thing to do at DEC (and for that matter is a standard thing to do at any manufacturing organization).
Yes. And I said that as well. :-)
Johnny Billquist || "I'm on a bus
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