Many Labeled Lights & Switches On A Vintage Ibm Computer. Many Labeled Lights & Switches On A Vintage Ibm 360 Model 91 Computer At The Living Computer Museum In Seattle.

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1960s 1970s 360 60s 70s address alteration black blue buttons byte closeup compare computer computers console counter cyclic diagnose dials enter entry equivalents fill fixed frequency gray green historic history ibm increment instruction knobs labeled levers lights living maint many margin model museum point process program rate red register repeat seattle silver stop storage switches technology test vintage white