by Australian Atomic Energy Commission, Research Establishment in Lucas Heights, N.S.W .
Written in English
|Statement||by C. B. Mason [and] D. J. Richardson.|
|Contributions||Richardson, D. J., joint author.|
|LC Classifications||QC770 .A996 no. 494|
|The Physical Object|
|Pagination||4  p.|
|LC Control Number||76462909|
The IBM System/ (S/) is a family of mainframe computer systems that was announced by IBM on April 7, , and delivered between and It was the first family of computers designed to cover the complete range of applications, from small to large, both commercial and : CISC. IBM's and Early Systems describes the creation of this remarkable system and the developments it spawned, including its successor, System/ The authors tell how System/'s widely-copied architecture came into being and how IBM failed in an effort to replace it ten years later with a bold development effort called FS, the Future by: The architecture of the newly announced IBM System/ features four innovations: 1. An approach to storage which permits and exploits very large capacities, hierarchies of speeds, read-only. The IBM System/ architecture is the model independent architecture for the entire S/ line of mainframe computers, including but not limited to the instruction set elements of the architecture are documented in the IBM System/ Principles of Operation and the IBM System/ I/O Interface Channel to Control Unit Original Equipment Manufacturers' Information manuals.
The IBM System/ Model 67 (S/) was an important IBM mainframe model in the late s. Unlike the rest of the S/ series, it included features to facilitate time-sharing applications, notably a Dynamic Address Translation unit, the "DAT box", to support virtual memory, bit addressing and the Channel Controller to allow sharing channels between processors. When the System/ ("") was introduced in , there were five instruction formats: RR, RS, RX, SI, and SS. An instruction's format was determined by the first two bits of its operation code ("opcode"), which was the instruction's first eight bits. The IBM® i Information Center offers Portable Document Format (PDF) files for viewing or printing the following topics. Users of the IBM i Information Center must first read and agree with the terms and conditions for downloading and printing publications.. If you are looking for a specific PDF that is not listed in the table, see the list of additional reference manuals. IBM's technical support resource for all IBM products and services including downloads, fixes, drivers, APARs, product documentation, Redbooks, whitepapers and technotes.
Many models offered the option of emulation of the customer's previous computer (e.g. the IBM series on a or the IBM on a ) using a combination of special hardware, special microcode and an emulation program that used the emulation instructions to simulate the target system, so that old programs could run on the new machine. Architecture of the IBM System / Abstract: The architecture* of the newly announced IBM System/ features four innovations: 1. An approach to storage which permits and exploits very large capacities, hierarchies of speeds, read- only storage for microprogram control, flexible storage protection, and simple program relocation. 2. Ibm Pdf User Manuals. View online or download Ibm User Manual. Computer - Computer - IBM develops FORTRAN: In the early s John Backus convinced his managers at IBM to let him put together a team to design a language and write a compiler for it. He had a machine in mind: the IBM , which had built-in floating-point math operations. That the used floating-point representation made it especially useful for scientific work, and Backus believed that.