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This approach has by now fallen out of favor.
#Motorola mcs 2000 cms software#
Partially data-driven tagged and descriptor-based design.This results from these major features of this architecture:
#Motorola mcs 2000 cms code#
All code automatically reentrant (fig 4.5 from the ACM Monograph shows in a nutshell why): programmers don't have to do anything more to have any code in any language spread across processors than to use just the two shown simple primitives.While there was no successor to the B5700, the B5000 line heavily influenced the design of the B6500, and Burroughs ported the Master Control Program ( MCP) to that machine. "I always thought it was one of the most innovative examples of combined hardware/software design I've seen, and far ahead of its time." The B5000 was succeeded by the B5500 (which used disks rather than drum storage) and the B5700 (which allowed multiple CPUs to be clustered around shared disk). It has been listed by the computing scientist John Mashey as one of the architectures that he admires the most. The first member of the first series, the B5000, was designed beginning in 1961 by a team under the leadership of Robert (Bob) Barton.
#Motorola mcs 2000 cms windows#
In addition to a proprietary CMOS processor design, Unisys also uses Intel Xeon processors and runs MCP, Microsoft Windows and Linux operating systems on their Libra servers the use of custom chips was gradually eliminated, and by 2018 the Libra servers had been strictly commodity Intel for some years. The third and largest line, the B8500, had no commercial success. Computers using that architecture were still in production as the Unisys ClearPath Libra servers which run an evolved but compatible version of the MCP operating system first introduced with the B6700. While the B5000 architecture is dead, it inspired the B6500 (and subsequent B6700 and B7700). In 1956, they purchased a 3rd party company and rebranded its design as the B205.īurroughs' first internally developed machine, the B5000, was designed in 1961 and Burroughs sought to address its late entry in the market with the strategy of a completely different design based on the most advanced computing ideas available at the time. It had nothing to compete with its traditional rivals IBM and NCR, who had started to produce larger-scale computers, or with recently founded Univac. By the late 1950s its computing equipment was still limited to electromechanical accounting machines such as the Sensimatic. 8.2 DCALGOL and Message Control Systems (MCS)įounded in the 1880s, Burroughs was the oldest continuously operating company in computing ( Elliott Brothers was founded before Burroughs, but didn't make computing devices in the 19th century)."Burroughs Large Systems" referred to all of these large-system product lines together, in contrast to the COBOL-optimized Medium Systems (B2000, B3000, and B4000) or the flexible-architecture Small Systems (B1000).
#Motorola mcs 2000 cms how to#
Each division's product line grew from a different concept for how to optimize a computer's instruction set for particular programming languages. In the 1970s, the Burroughs Corporation was organized into three divisions with very different product line architectures for high-end, mid-range, and entry-level business computer systems. Subsequent major redesigns include the B6500/B6700 line and its successors, as well as the separate B8500 line. It was optimized for compiling ALGOL 60 programs extremely well, using single-pass compilers. The first machine in the family was the B5000 in 1961. The Burroughs Large Systems Group produced a family of large 48-bit mainframes using stack machine instruction sets with dense syllables. ( August 2020) ( Learn how and when to remove this template message) See Wikipedia's guide to writing better articles for suggestions. This article's tone or style may not reflect the encyclopedic tone used on Wikipedia.
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