20120810-RedwoodCity
Page 1 | Page 2
 BabbageMachine
|
 BabbageMachine
|
 BabbageOutput
|
 BabbageDifferenceEngine
|
 DEC_PDP-1
|
 DEC_PDP-1_Display
|
 EarlyEngine
|
 EarlyCalculator
|
 CalculationAid
|
 PascalAdder
|
 Napier'sBones
|
 Tabulator
|
 HollerithSorter
|
 IBM_things
|
 AnotherTabulator
|
 IBM_026_CardPunch
|
 BasicLogicGates
|
 Cats
|
 Cats
|
 Cats
|
 Cats
|
 Cats
|
 Cats
|
 Cats
|
 BabbageMachineDemo
|
 BabbageMachineDemo
|
 SlideRules
|
 Abacus
|
 PunchedCards
|
 IBM
|