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IBM 1620 Model I
CHF 43.20
Auf Lager
SKU
MN0PRAU24J9
1 Verfügbar 
Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
High Quality Content by WIKIPEDIA articles! The IBM 1620 Model I was the original implementation of the IBM 1620 scientific computer, introduced in 1959. This unit (commonly called "1620" until the Model II was introduced) was produced as inexpensively as IBM could make it, in order to keep the price low. One industry magazine (Datamation) mentioned that the 1620 was the first IBM computer for which the basic system could be leased for a monthly rate less than its number. It did not even have conventional ALU hardware: all arithmetic was done by table lookup in core memory. Addition and Subtraction used a 100 digit table (@ address 00300..00399). Multiplication used a 200 digit table (@ address 00100..00299). In the basic machine division used software subroutines, but optional divide hardware could be installed using a repeated subtraction algorithm. Floating point arithmetic instructions were an available option (if the divide option was installed).
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131464478
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Größe H6mm x B220mm x T150mm
- EAN 9786131464478
- Titel IBM 1620 Model I
- Gewicht 162g
- Herausgeber Betascript Publishing
- Anzahl Seiten 96
- Genre Informatik
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