Harvard Mark III

GPTKB entity

Statements (54)
Predicate Object
gptkbp:instanceOf computer
gptkbp:application scientific calculations
gptkbp:collaboratedWith gptkb:IBM
gptkbp:component gptkb:printer
cabling
capacitors
connectors
power supply
sensors
actuators
cooling system
control panel
transistors
switches
vacuum tubes
logic gates
inductors
circuit boards
chassis
resistors
input/output devices
displays
relays
electromechanical parts
memory units
timing mechanisms
magnetic drum memory
punch card reader
gptkbp:designedBy gptkb:Howard_H._Aiken
gptkbp:dimensions approximately 10 x 20 feet
gptkbp:historicalSignificance first computer to use a stored program concept
https://www.w3.org/2000/01/rdf-schema#label Harvard Mark III
gptkbp:inputOutput punched cards
gptkbp:introduced 1951
gptkbp:language machine code
gptkbp:maintenance required regular maintenance
gptkbp:notableFeature floating-point arithmetic
programmable
automatic division
automatic multiplication
gptkbp:operatingHours none
gptkbp:performances up to 1000 characters per second
gptkbp:powers about 10 kW
gptkbp:productionCompany printed paper
1944-1951
gptkbp:RAM up to 1000 words
gptkbp:reliability high for its time
gptkbp:successor gptkb:Harvard_Mark_II
gptkb:Harvard_Mark_IV
gptkbp:technology relay technology
gptkbp:type electromechanical computer
gptkbp:usedBy gptkb:Harvard_University
gptkbp:userInterface manual control panel
gptkbp:weight approximately 5 tons