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How many vacuum tubes did the Harvard Mark I computer have?

Updated: 12/10/2022
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EcclesJordanTrigger

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9y ago

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None. The Harvard Mark 1 ASCC (IBM Automatic Sequence Controlled Calculator) was an electromechanical computer built for Harvard by IBM's Endicott NY facility in 1944. It was constructed from 765,000 components which included switches, relays, motors, rotating shafts, and clutches. It contained no vacuum tubes.

The Harvard Mark III ADEC (Aiken Dahlgren Electronic Calculator) was the first computer to use vacuum tubes. It was built at Harvard in 1949 using 5000 vacuum tubes and 1500 crystal diodes, along with electromechanical components. The Harvard Mark IV, built in 1952, was the first fully electronic design.

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Q: How many vacuum tubes did the Harvard Mark I computer have?
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Continue Learning about General History

Where was the Harvard mark 1 computer made?

Harvard University


Who is the first computer that uses electromagnetic relays?

Either Zuse Z3 or Harvard Mark I.


What technology did first general purpose computers use?

Harvard Mark I


When was the first computer used?

1942, both the special purpose electronic digital Atanasoff Berry Computer at Iowa State University in Ames, Iowa and the general purpose electromechanical programmable digital Harvard Mark i computer at Harvard University in Cambridge, Massachusetts were finished and were first used.


Who is the inventor of mark 1?

Grace Hopper invented the Mark 1 computer and she invented the other series of the mark computers also.Wrong! Grace Hopper had nothing to do with design of the Harvard Mark I as she wasn't even there. Her first contact with it was several months after it was fully operating, when she was hired as its 3rd programmer.Howard Aiken designed the Harvard Mark I and IBM built it for him using Navy funds.Hopper did suggest and help design some upgrades to the Harvard Mark I and was influential on other Harvard Mark machines, but she invented none of them.Hopper did invent many software development methodologies on machines ranging from the Harvard Mark I to the UNIVAC I, including several compilers culminating in FLOW-MATIC, which was the major input used in defining COBOL.Note that there were several computers identified as Marl 1, not just the Harvard machine. A few examples are:Ferranti Mark 1, in Manchester England the first British commercial computerManchester Mark 1, the prototype for the Ferranti Mark 1ETL Mark 1, in Japan

Related questions

How many vacuum tubes were in the Mark IV?

The Harvard Mark IV had about 4000 tubes.


Where was the Harvard mark 1 computer made?

Harvard University


What did mark zucker study in Harvard?

Psychology and Computer Science


Which was the first computer that used electromagnetic relays?

Harvard Mark I


What did Mark study?

Mark Zuckerberg studied Computer Science and Psychology at Harvard University


What did mark zuckerberg get his degree in?

Mark Zuckerberg's major at Harvard was actually Psychology though he loved programming and ended up taking a lot of computer science courses. If you think about it, it makes perfect sense how he mapped people relationships to computer science with something like Facebook.


What was IBMs first computer and what year did it come out?

IBM's first computer was the IBM ASCC at Harvard University (later renamed the Harvard Mark I due to an argument between IBM and Howard Hathaway Aiken of Harvard) in 1944.IBM's first electronic computer was the IBM 701 in 1952.


Who is the first computer that uses electromagnetic relays?

Either Zuse Z3 or Harvard Mark I.


When was Harvard Mark I created?

Harvard Mark I was created in 1944.


Was Mark1 computer was invented after the Apple Newton or before?

The term Mark I Computer is ambiguous as there were many given this name built in different places by different people. However as almost all of these computers were first generation machines (using vacuum tubes) built before 1960, it is probably safe to say the Mark I Computer was before the Apple Newton.


Hy did ENIAC give off so much heat?

In 1946two Americans, Presper Eckert, and John Mauchly built the ENIAC electronic computer which used vacuum tubes instead of the mechanical switches of the Mark I. The ENIAC used thousands of vacuum tubes, which took up a lot of space and gave off a great deal of heat just like light bulbs do. The ENIAC led to other vacuum tube type computers like the EDVAC (Electronic Discrete Variable Automatic Computer) and the UNIVAC I (UNIVersal Automatic Computer).


What technology did first general purpose computers use?

Harvard Mark I