IBM 1401

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IBM 1401

IBM's second successful, commercial computer. Introduced in 1959 and offered until the early 1970s, the 1401 was an outstanding success. More than 18,000 units were installed, an immense number of computers back then. It had 16KB of six-bit core memory, six tape drives and used punch cards for input. In 1960, IBM introduced the larger 1410 model with 80KB of memory.

For migration later on, 1401 emulators were built into the System/360 series, IBM's first family of computers. Taken down for maintenance many hours a month while IBM service technicians cleaned and tested its innards, the 1401 was very reliable for its time.

Stand-Alone or As a Peripheral
The 1401 was used as a stand-alone computer in many companies, but was also used in large enterprises as an input/output peripheral to larger IBM computers. Equipped with card readers and card punch devices, the 1401 was often used in the datacenter to transfer cards to tape, and print the results from the tapes after they were processed. For a personal story relating to the 1401, read "A Note from the Author" in software bloat. See IBM 701, IBM 650 and System/360.


IBM 1401
The 1401 was very successful. Its architecture and machine language were simple and straightforward. (Image courtesy of IBM.)
References in periodicals archive ?
4, 2015 /PRNewswire/ -- Washington residents have spoken loud and clear, overwhelmingly approving statewide Initiative 1401 with 71% of the vote tonight.
Pre-proposal meeting will be held on 11/13/15 01:30 AM at DART HQ; Conference Room 4D, 1401 Pacific Avenue, Dallas, TX 75202.
At 1401 Blondell Avenue in the Bronx, NY, Sherry Scanlon represented landlord, Rino Monteforte of Spectrum Painting, as well as new tenant, D.
TYNE SHIPPING MOVEMENTS Arrivals Date/Time Name From To 1401 0845 Princess Seaways Ijmuiden RoRo 3 14011159 CITYOFROMEEMDEN RoRo3/4 1401 1300 Baltic Wind Bruswick RSQ East 1401 1400 City of Amsterdam Zeebrugge TCT 2 Sailings Date/Time Name From To 1401 0759 Bulknes RSQ East Sea 1401 1159 HMS Trumpeter Tslip Sea 1401 1559 Myrsini TBT Sea 1401 1700 Princess Seaways RoRo 3 Ijmuiden 1401 1730 City of Paris TCT 2 Amsterdam
Place: Eugene Area Chamber of Commerce, 1401 Willamette St.
The South Florida home to see the biggest price cut today is a seven-bedroom, seven-and-three-half-bathroom house at 1401 North View Drive in Miami Beach, according to data from Condo Vultures Realty.
1401 would require that the government assign a risk category to each railroad carrier, public transportation operator, and private bus operator.
Reserve units in SDDC may self-nominate through appropriate command channels directly to United States Army Reserve Command, ATTN: AFRC-TRU, 1401 Deshler Street, Southwest, Fort McPherson, GA 30330.
Based on an eighty-seven year survey of tax records from the Black Death (1348) to the beginning of Medici ascendance (1434), Cohn argues that a series of successful peasant uprisings between 1401 and 1405 forced the Florentine government to change its attitudes and policies toward its rural subjects.
Gary Vause, Stetson University College of Law, 1401 61st St.
1401 imposes taxes on "self employment income" for each tax year.
1401 would treat the unified European Community (EC) as a single economic unit for purposes of the same country exception.