On 9/23/22 12:53, Paul Koning via cctalk wrote:


On Sep 23, 2022, at 12:45 PM, Chuck Guzis via cctalk <[email protected]> 
wrote:

On 9/22/22 22:56, ben via cctalk wrote:

Blinking lights tended to be for computers of the future.
World maps with lights where nuclear missiles could strike
seem to be movie props only.
I thought it curious that many 1960s-1970s supercomputers lacked front
panels and blinking lights altogether.    (e.g. Cray I, CDC
Cyber/600/700, etc.)  Indeed, the Cray couldn't even spin a tape without
help from another system doing the I/O.

Those are good examples, but is it "many" or just those two and maybe one or two more?  
For example, Burroughs and IBM mainframes were both very much "lights and switches" 
control panel type machines.  For that matter, so were the other CDC products; the 6000 series was 
a bit of an outlier I think.


Prime 850 had a 4 or 5 position switch and a push button.
I think there may have been a power light but I don't
remember for sure.

bill

Reply via email to