Harvard Mark I, also known as the Advanced Sequence Controlled Calculator or ASCC.
The IBM Automatic Sequence Controlled Calculator (ASCC), called the Mark I by Harvard University, was an electro-mechanical computer. The electromechanical ASCC was devised by Howard H. Aiken, built at IBM and shipped to Harvard in February 1944.
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.
Harvard Mark I
The MARK series Mark I Mark II, computer/calculator one of the first computers
Harvard Mark I
Harvard Mark I was created in 1944.
The IBM Automatic Sequence Controlled Calculator (ASCC), called the Mark I by Harvard University,[1] was the first large-scale automatic digital computer in the USA. It is considered by some to be the first universal calculator. The electromechanical ASCC was devised by Howard H. Aiken created at IBM, shipped to Harvard in February 1944, and formally delivered there on August 7, 1944 - mayur_vaghela@yahoo.co.uk
He designed several computers for Harvard University, starting with the electromechanical Automatic Sequence Controlled Calculator which was built by IBM but after an argument between Aiken and IBM he renamed it the Harvard Mark i and banished IBM from Harvard. The rest of his computers were built entirely by people from Harvard.
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.
Either Zuse Z3 or Harvard Mark I.
The Automatic Sequence Controlled Calculator (Harvard Mark I) was the first operating machine that could execute long computations automatically. A project conceived by Harvard University's Dr. Howard Aiken, the Mark I was built by IBM engineers in Endicott, N.Y. A steel frame 51 feet (16 m) long and eight feet high held the calculator, which consisted of an interlocking panel of small gears, counters, switches and control circuits, all only a few inches in depth. The ASCC used 500 miles (800 km) of wire with three million connections, 3,500 multipole relays with 35,000 contacts, 2,225 counters, 1,464 tenpole switches and tiers of 72 adding machines, each with 23 significant numbers. It was the industry's largest electromechanical calculator