[rescue] Finding antique machines

John Francini francini at mac.com
Fri Apr 20 14:07:04 CDT 2007

Did you read the rest of my message?  I did indeed mention the  
DECSYSTEM-2020 (KS-10).


On 20 Apr 2007, at 13:03, Michael Thompson wrote:

>> Later on, Digital came out with the DECsystem-1091, a re-packaging of
>> the KL-10 Model B in the same cabinetry as the DECSYSTEM-20 (and with
>> the same internal memory), but with blue top panels in place of the
>> orange used on the -20.  After that point, the only difference
>> between a DECsystem-10 and a DECSYSTEM 20 were:
>> o The microcode loaded at boot time by the front-end PDP-11/40
>> o The OS loaded from disk
>> o The on-disk format of the filesystems
>> o A can of paint
> And in 1978 DEC came out with a baby version called the KS10. This  
> system had MUCH less performance than the KL10 and was much  
> smaller. It would run TOPS-10, TOPS-20, or ITS. It used an 8080 as  
> the front-end instead of the PDP-11/40. Same deal as the KL10, swap  
> the pack and hit the boot button. This one is in my cellar: http:// 
> users.ids.net/~thompson/PDP10/KS10_4224_1S.jpg

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