Thanks for this and the other remarks that, "as handwaves go, this isn't
awful."
I think one of the things people don't think about with computers is
cooling. Adding in the air conditioning adds weight and space.
> On Sat, Jul 11, 2015 at 1:16 PM, [Traveller_TNE]
>>
>> Even in 1992 we knew that the only way to rationalize their large size
>> was
>> immense amounts of hand-waving about interfaces and work stations,
>> cooling, peripherals and back-up capabilities, surge protectors and UPS,
>> etc. But mostly it was to keep some internal continuity with the LBB
>> computers.
>>
> In 1992 as I recall the beefiest space rated cpu was something like a 10
> or
> 15 Mhz 486 produced by thick film printed with a minimum trace percentage
> over 50%. My now ex-wife worked in a plant that that specialized in space
> rated electronic components then. Couple that to the discussions of
> multiple core CPUs at the time it was pretty easy to see the numbers in
> TNE. Size is one of the big issues in Space rated electronic components
> the
> smaller you build the higher the error and outright failure ratios go up.
>
> --
> Evyn
>
awful."
I think one of the things people don't think about with computers is
cooling. Adding in the air conditioning adds weight and space.
> On Sat, Jul 11, 2015 at 1:16 PM, [Traveller_TNE]
>>
>> Even in 1992 we knew that the only way to rationalize their large size
>> was
>> immense amounts of hand-waving about interfaces and work stations,
>> cooling, peripherals and back-up capabilities, surge protectors and UPS,
>> etc. But mostly it was to keep some internal continuity with the LBB
>> computers.
>>
> In 1992 as I recall the beefiest space rated cpu was something like a 10
> or
> 15 Mhz 486 produced by thick film printed with a minimum trace percentage
> over 50%. My now ex-wife worked in a plant that that specialized in space
> rated electronic components then. Couple that to the discussions of
> multiple core CPUs at the time it was pretty easy to see the numbers in
> TNE. Size is one of the big issues in Space rated electronic components
> the
> smaller you build the higher the error and outright failure ratios go up.
>
> --
> Evyn
>