IBM 1620 Model I kitap kapağı
Kitap başlığı:

IBM 1620 Model I

Betascript Publishing (2010-08-24 )

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ISBN-13:

978-613-1-46447-8

ISBN-10:
6131464472
EAN:
9786131464478
Kitabın dili:
İngilizce
Özet:
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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).
Yayınevi:
Betascript Publishing
Websitesi:
https://www.betascript-publishing.com/
Düzenleyen:
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
Sayfa sayısı:
96
Yayın tarihi:
2010-08-24
Hisse:
Mevcut
Kategori:
İşletim sistemleri, kullanıcı arayüzleri
Fiyat:
34.00 €
Anahtar kelimeler:
IBM 1400 Series, IBM 1440, IBM 1410, IBM 1401

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