IBM System/3

IBM System/3

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The IBM System/3 was a low-end business computer aimed at new customers and organizations that still used IBM 1400 series computers or unit record equipment. It was the first member of what IBM refers to as their "mid range" line and introduced the RPG programming language for which it was essentially an appliance for small business applications. It featured a new punched card format that was smaller and stored 96 characters. Instead of the rectangular punches in the classic IBM card, the new cards had tiny, circular holes much like paper tape. Data was stored in six-bit binary-coded decimal code, with three rows of 32 characters each, or 8-bit EBCDIC, with the two extra holes located in the top rows. Cards had room for 128 printed characters in four rows of 32 characters each. IBM System/370s with a proper card reader could also process the new cards.show more

Product details

  • Paperback | 80 pages
  • 152 x 229 x 5mm | 127g
  • Chrono Press
  • United States
  • English
  • 613654749X
  • 9786136547497