IBM 1620 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "IBM 1620" in English language version.

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  • Weik, Martin H. (Mar 1961). "IBM 1620". ed-thelen.org. A Third Survey of Domestic Electronic Digital Computing Systems.

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  • The IBM 1316 was the removable disk pack to the IBM 1311 disk drive of the IBM 1620, which explains the following: "“The Man from U.N.C.L.E.” movie's full of technological anachronisms ... Back in 1963, when the movie took place, there were disk packs available like the 10-pound IBM 1316." "The Man from U.N.C.L.E." movie's full of technological anachronisms".

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  • even five years later, it was still uncommon for a high school to have an IBM 1620: "IBM 1620".

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  • "The main memory was logically arranged as 20,000 6-bit words. Each word comprised four BCD data bits, a "flag" bit, and an odd parity check bit. Though this was its logical arrangement, physically memory was a 100x100 array of 12-bit ferrite core words, which causes a few quirks in the instruction set. All instructions occupied 12 consecutive digits of memory, and were required to start at an even address so that the two-digit opcode could be read in one 12-bit physical word." "The IBM 1620 Model 1 – Physics @ SMU".

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swansea.ac.uk

  • "IBM 1620". Swansea University – swansea.ac.uk. Archived from the original on 2017-12-22. Retrieved 2017-12-19.

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