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He was a key engineer on the IBM System/360 project, announced in 1964. Among other contributions, Blaauw made the successful case for an 8-bit (as opposed to 6-bit) computer architecture . Blaauw also designed a revolutionary address translation system, the "Blaauw Box", which was removed from the original System/360 design, but was later used ...
Control Program Facility (CPF) is the operating system of the IBM System/38. [3] CPF represented an independendent line of development at IBM Rochester, and was unrelated to the earlier and more widely used System Support Program operating system. CPF evolved into the OS/400 operating system, which was originally known as XPF (Extended CPF). [1]
With the introduction of MVS/370 and successor systems, a whole new environment was introduced: the Service Request Block (SRB), which generally has a higher priority than any Task Control Block, and, indeed, which itself has two distinct priorities: a Global SRB (priority over all local address space SRBs and TCBs) and a Local SRB (priority over only the local address space TCBs); and MVS's ...
The Service Bureau Corporation (SBC) had its origins in 1932 as the Service Bureau Division within IBM and was spun off as a wholly owned subsidiary in 1957 to operate IBM's burgeoning service bureau businesses. [1] IBM had operated service bureaus in major cities beginning in the 1920s allowing users to rent time on tabulating equipment, and ...
A console operator interacts with a front panel or a multi-user system's console entering system commands via a keyboard [a] entering commands for a subsystem, e.g., HASP, via a keyboard [a] replying to requests for information [b] taking actions such as mounting computer tapes that were "pulled" by a tape librarian
Attached Support Processor (ASP) was an implementation of loosely coupled multiprocessing for IBM's OS/360 operating system. [1] [2] IBM later changed the name to Asymmetrical multiProcessor but retained the acronym ASP. ASP evolved from the design of the 7094/7044 direct coupled system, using data channel to data channel communication. By ...
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