Burroughs MCP Architecture: Difference between revisions
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The '''Burroughs Large Systems Group''' designed large mainframes using '''stack machine''' instruction sets with dense 12-bit instructions and 48-bit data words. The first such design was the B5000 in 1961. It was optimized for running [[ALGOL 60]] extremely well, using simple compilers. It evolved into the B5500. Subsequent major redesigns include the B6500 line and its successors, and the separate B8500 line. 'Burroughs Large Systems' referred to all of these product lines together, in contrast to the [[COBOL]]-optimized [[Burroughs B2500|Medium Systems]] or the flexible-architecture [[B1700|Small Systems]]. | The '''Burroughs Large Systems Group''' designed large mainframes using '''stack machine''' instruction sets with dense 12-bit instructions and 48-bit data words. The first such design was the B5000 in 1961. It was optimized for running [[ALGOL 60]] extremely well, using simple compilers. It evolved into the B5500. Subsequent major redesigns include the B6500 line and its successors, and the separate B8500 line. 'Burroughs Large Systems' referred to all of these product lines together, in contrast to the [[COBOL]]-optimized [[Burroughs B2500|Medium Systems]] or the flexible-architecture [[B1700|Small Systems]]. | ||
[[Image:b6700.jpg|thumb|420px|right|Figure 4.5 From the ACM Monograph in the References. ''[[Elliot Organick]] 1973.'']] | [[Image:b6700.jpg|thumb|420px|right|Figure 4.5 From the ACM Monograph in the References. ''[[Elliot Organick]] 1973.'']] | ||
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==B5000== | ==B5000== | ||
The first member of the first series, the B5000,<ref name=B5000-21005/> was designed beginning in 1961 by a team under the leadership of [[Robert (Bob) Barton]]. It was a unique machine, well ahead of its time. It has been listed by the influential computing scientist [[John Mashey]] as one of the architectures that he admires the most. "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."<ref name=johnmashey> | The first member of the first series, the B5000,<ref name=B5000-21005/> was designed beginning in 1961 by a team under the leadership of [[Robert (Bob) Barton]]. It was a unique machine, well ahead of its time. It has been listed by the influential computing scientist [[John Mashey]] as one of the architectures that he admires the most. "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."<ref name=johnmashey> | ||
