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Topic: Burroughs B5000

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	Burroughs B5000 - Wikipedia, the free encyclopedia
		The Burroughs B5000 was a series of computers designed beginning in 1961 by a team at Burroughs under the leadership of Robert (Bob) Barton.
		In fact, Burroughs became known for its superior compilers and implementation of languages, including the object-oriented Simula (a superset of ALGOL), and Iverson, the designer of APL declared that the Burroughs implementation of APL was the best he'd seen.
		Undoubtedly, the direct influence of the B5000 is the current Unisys ClearPath range of mainframes which are the direct descendants of the B5000 and still have the MCP operating system after 40 years of consistent development.
	en.wikipedia.org /wiki/B5000 (4166 words)

	Burroughs B5000 - the free encyclopedia (Site not responding. Last check: 2007-10-01)
		Thus the designers of the current B5000 systems can optimize in whatever is the latest technique, and programmers do not haveto adjust their code for it to run faster – they do not even need to recompile, thus protecting software investment, whereprograms have been known to run for years over many processor upgrades.
		In fact, Burroughs became known for its superiorcompilers and implementation of languages, including the object-oriented Simula (a superset of ALGOL), and Iverson, the designerof APL declared that the Burroughs implementation of APL was the best he'd seen.
		Undoubtedly, the direct influence of the B5000 is the current Unisys ClearPath range of mainframes which are the directdescendants of the B5000 and still have the MCP operating system after 40 years of consistent development.
	www.encyclopedia-of-knowledge.com /?t=B5000 (4512 words)

	Unisys History Newsletter v3n5 (Site not responding. Last check: 2007-10-01)
		The B5000 at NASA in Huntsville, Alabama was upgraded to a B5500 in November 1964.
		Burroughs saw the IBM 360/30 and 360/40 as the principal competition for the B2500 and B3500, so the company decided to make their i/o systems IBM-compatible by using IBM's EBCDIC data code and many IBM file structures.
		Burroughs developed a half-size version of the D825 called the D82, which cut the word size from 48 to 24 bits and had a simplified instruction set.
	www.cc.gatech.edu /gvu/people/randy.carpenter/folklore/v3n5.html (2769 words)

	B5000
		The B5000 was designed in 1961 by a team at Burroughs under the leadership of Robert (Bob) Barton.
		On faster machines past the B5000, more of the stack may be kept in registers or cache near the processor (such a cache being implemented as a barrel).
		Thus the designers of the current B5000 systems can optimize in whatever is the latest technique, and programmers do not have to adjust their code for it to run faster — they do not even need to recompile, thus protecting software investment, where programs have been known to run for years over many processor upgrades.
	www.freecaviar.com /search.php?title=B5000 (4655 words)

	MCP (Burroughs Large Systems) - Wikipedia, the free encyclopedia
		The MCP (Master Control Program) is the proprietary operating system of the Burroughs B5000 and its successors (the B5000/B6000/B7000 series, A Series of the 1980s, to today's Unisys ClearPath machines).
		The MCP was the first commercial OS to provide virtual memory and this was supported by the B5000 hardware (for a description of how the virtual memory works, see the B5000 entry).
		The article on the B5000 looks at the way dependent processes could be asynchronously run so that many processes could share common data (with the mechanisms to provide synchronized update).
	en.wikipedia.org /wiki/Master_Control_Program (3490 words)

	Burroughs Large Systems Architecture
		The basic premise of this paper is that the architecture of the Burroughs B5000, as introduced twenty-one years ago and as refined some eighteen years ago, still stands as an example of a modern high-level language computer.
		The essence of the B5000 design has changed little in the last twenty years, consisting of the hardware stack, the use of descriptors, and special bits to differentiate code and data.
		I have attempted to show that the B5000 included many features still considered new, and which only now are appearing in other systems, The operator set level of the B5500 design has, of commercial necessity, remained essentially unchanged.
	www.ajwm.net /amayer/papers/B5000.html (3526 words)

	[No title]
		The reward for Burroughs' gamble was a system, in the form of the B5000/5500/5700, which stayed in manufacturing fcr 10 years (probably the longest of any computer it the history of the field) and gave Burroughs a unique architectural-based position in the industry".
		He was leaving Burroughs as an employee and going to become a consultant to Burroughs, getting the same amount of pay, but only spending half of his time on Burroughs business.
		Burroughs magnetic tape equipment was far superior to anything that IBM had.
	ed-thelen.org /comp-hist/B5000-AlgolRWaychoff.html (19390 words)

	Re: IBM Mainframe JCL Conversion Tools
		Burroughs went heavily for block-structured languages, specifically in the form of an extended version of ALGOL-60, a decade or more before Wirth developed the first Pascal specification.
		The Burroughs B5000 and its descendants have been honoring that decision, and that dialect, since their introduction in 1961.
		It is as anachronistic as to indicate that Unisys MCP systems honor the traditions established by PL/1 or ADA by using an ALGOL-60 dialect, or that the music of J. Bach owes much to the compositions of Felix Mendelssohn.
	www.talkaboutprogramming.com /group/alt.cobol/messages/23130.html (261 words)

	Burroughs B5000 at opensource encyclopedia (Site not responding. Last check: 2007-10-01)
		The B5000 was a mainframe computer introduced by the Burroughs Corporation in 1961.
		The B5000 was a stack machine designed to be programmed in an extended Algol 60.
		The operating system, called Master Control Program (MCP) - unrelated from the same in Tron), were programmed in extended Algol almost a decade before Unix, and the command interface developed into a compiled structured language with procedures called Work Flow Language (WFL).
	www.wiki.tatet.com /B5000.html (124 words)

	Computer Museum
		The Burroughs B205 used vacuum tubes and a magnetic drum main memory system.
		The 205 was a decimal macine with a magnetic drum for primary memory.
		Burroughs B5000 modules plugged into a section of the backplane.
	www.cs.virginia.edu /brochure/museum.html (2994 words)

	Charles Babbage Institute: RESEARCH PROGRAM> Current research (Site not responding. Last check: 2007-10-01)
		The development team for the Burroughs’ B5000 computer system began in the late 1950s with two major design objectives.
		The B5000 contained one to eight high-speed, coincident-current, magnetic core modules for multiprocessor operation.
		There is also a useful discussion with some members of the team in “Discussion: The Burroughs B 5000 in Retrospect,” Annals of the History of Computing, ibid.
	special.lib.umn.edu /cbi/shp/entries/mcp.html (481 words)

	Unisys \| About Unisys \| History
		Burroughs introduces A Series, forerunner of the current ClearPath HMP NX system.
		Burroughs golf scoring service first introduced at the 109th Open Championship Muirfield, Scotland.
		Burroughs introduces the B5000 Series, the first dual-processor and virtual memory computer.
	www.unisys.com /about__unisys/history (628 words)

	[No title]
		The B5000 is a stack machine and all instructions operate on the stack.
		All arithmetic operations are performed on operands held in the A and B registers, leaving a single result in the B register.
		B5000 instruction word is divided into four instruction syllables: operators, literals, operand calls, and descriptor calls.
	longwood.cs.ucf.edu /~pmodak/OS_Term_Paper.doc (10975 words)

	Summary of projects by N. Wirth, 1962 - 1999 (Site not responding. Last check: 2007-10-01)
		After publication the project was continued at Stanford University and resulted in an improved implementation on the Burroughs B5000 computer.
		This work led the foundation for the method of the microprogrammed, stack-oriented interpreter, first tested on an IBM 360/30 computer.
		Lilith demonstrated that a workstation can be a powerful, convenient, and even economical tool not only in the office, but in applications which so far had been the exclusive domain of large scale computers, such as computer-aided design.
	www.inf.ethz.ch /~wirth/projects.html (3313 words)

	Mainframe
		The Burroughs B5500 has multiprogramming and virtual memory capabilities, and is three times faster than the B5000.
		The Burroughs B6500, an improved version of the B5500.
		It was the first Burroughs machine with dynamic linking of programs at runtime.
	www.thocp.net /hardware/mainframe.htm (3279 words)

	Stack machines(John R. Mashey)
		Machines most commonly called stack machines [Burroughs B5000, HP3000, etc] commonly have ALU operations with no explicit operands, i.e., the operands are implicitly accessed at (or near) the top of the stack.
		I always admired the elegance of the B5000, as a machine designed with compilers and OS's in mind; it fit the technology of the day well, but the tradeoffs have changed - code density is not so important, the stack is a bottlneck for very high-performance implementations, and global optimizing technology is widely available.
		Kudos to the Unisys (B5000...B6xxx..A-series) line for longevity: not only was the B5000 the first major stack machine, its descendents look like the last remaining general-purpose stack machines.
	yarchive.net /comp/stack_machines.html (4059 words)

	All words on ALGOL
		It is sometimes erroneously attributed to Edsger Dijkstra, also known for his pointed comments, who helped to implement the first ALGOL 60 compiler.
		The Burroughs Corporation's B5000 and its successors were stack machines designed to be programmed in an extended variant of ALGOL 60, known as Elliot ALGOL; indeed their operating system, or MCP (Master Control Program) as they are called, was written in Elliot ALGOL as far back as 1961.
		The following code could run on an ALGOL implementation for a Burroughs A-Series mainframe, and is taken from this site.
	www.allwords.org /al/algol.html (968 words)

	Algol programming language : Algol 60
		John Backus and Peter Naur both served on the committee which created it.
		The Unisys Corporation still markets machines descended from the B5000 today, running the MCP and supporting several extended Algol compilers.
		Algol 60 as officially defined had no I/O facilities; implementations necessarily had to add some, but they varied from one implementation to another.
	www.fastload.org /al/Algol_60.html (473 words)

	The Rice University Computer
		While not the first computer on campus--a Litton LGP-30 shared by the Mechanical Engineering and Chemical Engineering departments was in use in 1957[3]--it quickly became Rice's primary computer and remained in that role until supplanted by an IBM 7040, followed by a Burroughs B5500, in the late 1960's[4].
		In fact its "descriptor" addressing is very nearly the same as the R1's codeword scheme[10], and the use of tag bits was similar in each machine.
		Tracing the machine's genealogy through the Burroughs B5000 and determining to what extent codeword segmentation influenced early experiments in multiprogramming promises to be another rich area of inquiry.
	www.princeton.edu /~adam/R1/r1rpt.html (6344 words)

	[No title]
		The collection contains "Competitor Information" sheets, compiled by staff at Burroughs, which include information about competitor adding machine and computer companies and their products.
		Burroughs Corporation Records, Analysis of Competitor Products ("Competitive Information") and Competitorsâ Product Literature (CBI 90), Charles Babbage Institute, University of Minnesota, Minneapolis.
		Burroughs also kept product literature files, which included a variety of types of information on the companyâs competitors and their products.
	special.lib.umn.edu /findaid/ead/cbi/cbi00090-004.xml (308 words)

	No Title (Site not responding. Last check: 2007-10-01)
		IBM System/360, introduced in April 1964, was the first commercial system based on a family of upward compatible processors, all of which were announced on the same day.
		Other notable families include the Univac 1100 series, the Burroughs B5000 and its successors, the CDC Cyber series, and the Digital Equipment Corporation VAX series.
		In the late 1960s, Burroughs built the ILLIAC-IV, a parallel-processing machine based on a design by Daniel Slotnik of the University of Illinois.
	cs.union.edu /~hemmendd/Courses/cs40/History/digcomphist.html (12008 words)

	Douglas W. Jones's collection of job cards
		One puzzling feature of this card is that the explanatory information filling the center of the card doesn't align in any useful way with the card columns, although the graphics suggest that such an alignment was intended.
		This card appears to be from the 1961-1966 era, when Stanford had a Burroughs B5000 (upgraded in 1965 to a B5500) and an IBM 7090.
		The prepunched text "$JOB" in columns 1 through 4 allows the card to be dated to before 1967 when Stanford got an IBM System 360/67; on that machine, job cards always began with "// JOB".
	www.cs.uiowa.edu /~jones/cards/collection/i-job.html (446 words)

	Burroughs Corporation Records, Analysis of Competitor Products ("Competitive Information) and Competitors' Product ...
		Researchers may quote from the collection under the fair use provisions of the copyright law (Title 17, U.S. Code).
		Burroughs compiled special informational sheets ("Competitor Information") for the sales department to use in countering arguments against Burroughs products or showing how a Burroughs machine was better than the competitors'.
		Burroughs B5000 major competitors, 1962 (Box 1, folder 9)
	www.cbi.umn.edu /collections/inv/burros/cbi00090-004.html (495 words)

	langreiter.com plain, simple: 2005-03-27-b5k
		"The first commercial open source platform was probably the Burroughs B5000, designed 40 years ago in 1963 by Robert Barton and a team at [create Burroughs].
		These systems were stack machines without an assembler language — all development was done in variants of the ALGOL language [...] C.A.R. Hoare famously noted that ALGOL was a significant improvement on most of its successors."
		"Another interesting fact is that a bright young student had developed, in a staggering three months during a summer break, the first working ALGOL compiler on Burroughs equipment in the late 1950s.
	www.langreiter.com /space/2005-03-27-b5k (192 words)

	The Risks Digest Volume 6: Issue 11 (Site not responding. Last check: 2007-10-01)
		Our H800 shared a computer room with the Military Personnel Center, who had just moved the personnel records of all of the officers in the USAF onto mag tape files on a Burroughs B5000.
		The biggest job they ran was queries, which were written in a perverted first-order predicate calculus and asked questions like "which officers have specialty codes equal 'xxxx' and grade equal 'Captain'" and so forth.
		Individual records were pulled by the obvious query "which officers have Service Number equal 'xxxx'..." The program loaded a batch of queries into the B5000 and then passed the whole tape file against it, printing "hits" on line, giving a distinctive rhythm to the job: buzzzzchunkachunkabuzzzchunkabuzzzzzzzzzzzzchunkachunkabuzzz....
	safariexamples.informit.com /0130464163/maillists/risks/6.11.html (2824 words)

	[No title]
		Yet more googling and I'm fairly sure that PUSH and POP were first used in 1963 on the Burroughs B5000.
		Karen> Yet more googling and I'm fairly sure that PUSH and POP were first used in Karen> 1963 on the Burroughs B5000.
		The B5000 (1961-1963) probably is the first machine with stack instructions.
	neil.franklin.ch /Usenet/alt.folklore.computers/20030302_Push_and_pop_first_used_when (3149 words)

	MVS... a long history : OS/360
		OS/360 was not the first operating system to require DASD.
		Burroughs B5000 (MCP), CDC 6600 (CIPROS), Ferranti Atlas and GE 625 (GECOS, later GCOS) all required DASD, to say nothing of IBM's own DCS.
		Multiprogramming introduced the technique of assigning control of the processor to another task while the first task was waiting for I/O. This technique utilized resources more effectively.
	mcraeclan.com /links/Computers/IBMMainframeHistory/mvshist1.htm (1147 words)

	DIMACS Working Group on Mobile Code Security (Site not responding. Last check: 2007-10-01)
		The working group will focus on the use of safe language runtime systems as protection mechanisms to support the controlled execution of untrusted code.
		Language-based mechanisms have been used for security purposes perhaps as early as the Burroughs B5000 series computers (ca.
		The working group will explore many recent systems such as language-based mechanisms, name-space management, and capability style semantics to provide access control.
	dimacs.rutgers.edu /Workshops/WGMobileCode/announcement.html (319 words)

	Ted Leung on the air : Capability-Based Computer Systems
		So as we started into sharing, I took some time to look through my (paper) copy of Henry Levy's Capability-Based Computer Systems which details the evolution of capability oriented systems.
		In these pages you encounter the Burroughs B5000, the MIT PDP-1, the CAL-TSS, the Plessey 250 and its descendent the Cambridge CAP.
		You'll also find the CMU Hydra and StarOS systems.
	www.sauria.com /blog/computers/851.html (636 words)

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