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Topic: Data General Nova

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	DG-NOVA
		The Nova was one of the first 16-bit minicomputers and led the way toward word lengths that were multiples of the 8-bit byte.
		So, whilst the NOVA may have been influenced by the -8 (hardly surprising, as DeCastro played a large role in the development of the -8) it is in no way a "stretched" PDP-8.
		Data General Nova: To historical notes, it should be noted the architecture of the system is very similar in many respects to the PDP-11, and accusations have flown around about DEC stealing from DG, vice versa, and the Nova being developed by engineers who were [highly irritated] that DEC rejected their design.
	ed-thelen.org /comp-hist/dg-nova.html (620 words)

	Data General Nova - Wikipedia, the free encyclopedia
		The Nova was followed by the Eclipse, which was similar in most ways but added virtual memory support and other features required by modern operating systems.
		It appears that Data General originally intended the Nova 3 to be the last of it's line, planning to replace the Nova with the later Eclipse machines.
		The Nova 4 / Eclipse S/140 was based on four AMD 2901 bit-slice ALUs, with microcode in read-only memory, and was the first Nova designed for DRAM main memory only, without provision for magnetic core memory.
	en.wikipedia.org /wiki/Data_General_Nova (2276 words)

	Great Microprocessors of the Past and Present: Forgotten/Innovative Designs before the Great Dark Cloud
		However, the NOVA (1969) was a more mature design (by PDP-8 designer Edson DeCastro, who came to Data General from DEC).
		Another CPU, the National Semiconductor PACE, was based on the NOVA design, but featured 16 bit addressing, more addressing modes, and a 10 level stack (like the 8008), but lacked hardware multiply and divide.
		Data General later switched architectures and became an early supporter of the Motorola 88K series load-store microprocessor in the AViiON Unix based systems (designers originally wanted to call it the Nova II, but that idea was rejected, so instead they reversed the name and inserted the II in the middle, switching upper and lower case).
	www.microprocessor.sscc.ru /great/s2.html (2235 words)

	Definition of Data General Nova
		The Data General Nova was a popular 16-bit minicomputer built by the US company Data General starting in 1968.
		The Nova packed enough power to do most simple computing tasks into a single rack mount case, and became hugely popular in science labs around the world.
		The Nova's biggest competition was from the newly-born DEC PDP-11 computer series, and to a lesser extent the venerable DEC PDP-8 systems.
	www.wordiq.com /definition/Data_General_Nova (1385 words)

	Nova (Site not responding. Last check: 2007-10-14)
		nova n : a star that ejects some of its material in the form of a cloud and become more luminous in the process [also: novae (pl)] Nova, OH Zip code(s): 44859 Nova A minicomputer(?), introduced some time before 1978, with four 16-bit accumulators, AC0 to AC3 and a 15 bit program counter.
		A person of brilliant and attractive qualities, especially on public occasions, as a distinguished orator, a leading theatrical performer, etc. Note: Star is used in the formation of compound words generally of obvious signification: as, star-aspiring, star-bespangled, star-bestudded, star-blasting, star-bright, star-crowned, star-directed, star-eyed, star-headed, star-paved, star-roofed; star-sprinkled, star-wreathed.
		To be bright, or attract attention, as a star; to shine like a star; to be brilliant or prominent; to play a part as a theatrical star.
	www.claranova.com (940 words)

	nova - definition by dict.die.net
		Note: The most important modern nov[ae] are: No"va Coro"n[ae] Bo`rea"lis[1866]; No"va Cyg"ni[1876]; No"va Andro"med[ae][1885]; No"va Auri"g[ae][1891-92]; No"va* Per"se*i[1901].
		Like the PDP-8, the Data General Nova was also copied, not just in one, but two implementations - the Data General MN601 and Fairchild 9440.
		Another CPU, the PACE, was based on the NOVA design, but featured 16-bit addresses (instead of the Nova's 15), more addressing modes and a 10-level stack (like the Intel 8008).
	dict.die.net /nova (364 words)

	Data General Nova at opensource encyclopedia (Site not responding. Last check: 2007-10-14)
		Primarily the entire machine was built onto a single 15 inch by 15 inch printed circuit board, which could then be run off an assembly line with no wiring required.
		The original Nova machines ran at 1.5MHz, but the series was soon upgraded with semiconductor RAM which allowed DG to create the 3MHz SuperNova.
		There is a diverse but ardent group of people worldwide who restore and preserve legacy 16-bit Data General systems, and a web search of [Data General Nova], [Eclipse], [RDOS], or the various other DG-related keywords should yield good results.
	www.wiki.tatet.com /Data_General_Nova.html (1331 words)

	MITEM's Data General Solutions
		Data General was formed in the 1960s by previous employees of Digital Equipment Corporation.
		Data General was a pioneer of the mini-computer design and become well known for the Nova 16-bit platform.
		Data General (DG) systems, as with many other legacy systems are still very much in use, running mission-critical applications and business processes.
	www.mitem.com /solutions/platforms/dataGeneral.asp (340 words)

	232 to RS-422 Interface Converter (Site not responding. Last check: 2007-10-14)
		Data processing equipment in the office, on the factory floor and across the campus may come in a variety of 'flavors,' embracing terminals, badge readers, alarm equipment and all types of manufacturing and laboratory instruments.
		Data communication connections between such equipment in the premises environment can often be accomplished by merely connecting interfaces together by a cable.
		A Data General Nova minicomputer is being used to control a computerized machine tool.
	www.telebyteusa.com /catalog/appnotes/app_archive/a261.htm (343 words)

	Great Microprocessors of the Past and Present (V 13.4.0)
		However, the NOVA (1969) was a more mature design (by PDP-8 designer Edson DeCastro, who founded Data General from DEC after an internal competition for the PDP-8 replacement chose Gordon Bell's new design which became the PDP-11, rather than DeCastro's extended PDP-8 design).
		Another CPU, the National Semiconductor PACE, was based on the NOVA design, but featured 16 bit addressing, more addressing modes, and a 10 level stack (like the 8008), but lacked hardware multiply and divide.
		The 16/32 bit ECLIPSE (1973) was Data General's higher end complement to the 16 bit Nova, adding 16 and 32-bit instructions.
	www.cpushack.net /CPU/cpu2.html (2627 words)

	A Brief History (Site not responding. Last check: 2007-10-14)
		Control Data Corporation began the development of its series of mainframes such as the 6600 under the leadership of Seymour Cray.
		General Electric developed an early series of mainframes which was eventually bought out by Honeywell.
		Machines such as the DEC VAX and Data General MV series have become "superminis." These processors differ from current mainframes principally in their less elaborate input-output processors and more limited capacity for data storage.
	www.csee.wvu.edu /~jdm/classes/cs455/notes/tech/history.html (1677 words)

	Computer, Telephony and Electronics Glossary and Dictionary (Site not responding. Last check: 2007-10-14)
		Generally, it refers to the speed of the flow of data measured in bits across a network, through an Internet connection, or from and I/O device such as a disk drive.
		Data Space Transfer Protocol is used to index and categorize data using a XML based catalog.
		Data is found and retrieved based on the labels contained in the UCK tags.
	www.csgnetwork.com /glossaryd.html (12660 words)

	Great Microprocessors
		A microprocessor generally means a CPU on a single silicon chip, but exceptions have been made (and are documented) when the CPU includes particularly interesting design ideas, and is generally the result of the microprocessor design philosophy.
		Program and Data memory were separate, 1K data memory and a 12-bit PC for 4K program memory (in the form of a 4 level stack, used for CALL and RET instructions).
		Inside was one 8 bit data register, and two 8 bit index registers and an 8 bit stack pointer (stack was preset from address 256 to 511).
	wwwcsif.cs.ucdavis.edu /~csclub/museum/cpu.html (6798 words)

	Great Microprocessors of the Past and Present (Site not responding. Last check: 2007-10-14)
		The initial 8MHz 68000 was actually a 32 bit architecture internally, but had only a 16 bit data bus and 24 bit address bus to fit in a 64 pin package (address and data shared a bus in the 40 pin packages of the 8086 and Z-8000).
		Data registers could be used for any operation, including offset from an address register, but not as the source of an address itself.
		The 68020 (1984) expanded external data and address bus to 32 bits, simple 3-stage pipeline, and added a 256 byte cache (loop buffer), while the 68030 (1987) brought the MMU onto the chip (it supported two level pages (logical, physical) rather than the segment/page mapping of the Intel 80386 and IBM S/360 mainframe).
	bwrc.eecs.berkeley.edu /CIC/archive/cpu_history.html (15782 words)

	Robert J. McDonald, P.Eng.
		Data General Nova 2, Motorola 6805, 6811, 68000,
		This was used to aid visualization of the flow of molten iron from data gathered by researchers.
		My main duties were to coordinate and optimize usage of computing resources, plan and control the computing budget, help staff set goals, review staff performance annually, schedule work for the department, evaluate and approve all computer related purchases, and interview job candidates.
	www.forth.org /resumes/mcdonald_robert.html (1563 words)

	The Big & Beautiful Data General Minicomputers
		My obsession began with a Nova 3 I got in late 2001, and was followed by a second Nova 3 and Eclipse S/130 in September 2005.
		For those who don't already know, they are both 16 bit minicomputers made by Data General in the mid 1970's and were in direct competition with DEC's PDP-11 series.
		Bruce Ray's Novas Are Forever is another rich source of information in all things DG.
	www.chookfest.net /nova3 (517 words)

	Lloyd Borrett - Computing - Computing Platforms - BHP Days
		The digitised data was sent through another serial interface to the Data General Nova minicomputer (pictured above) and submitted in the form of pseudo punched cards to BHP's seismic exploration system running on a Control Data mainframe.
		We were using a new Data General Eclipse S130 minicomputer running multi-user AOS with 192 Kb of memory, a 92 Mb hard disk drive and four Data General terminals.
		By this time the BHP group of companies were using Data General based systems quite extensively in head office and the minerals division.
	www.borrett.id.au /computing/bhpdays.htm (1042 words)

	WPS:Data General NOVA4/X
		This is my old but nice Data General Nova 4/X minicomputer.
		summary of Data General's history complete with tech specs, 'hello, world' and other code example, and many hyperlinks to DG stuff.
		summary of Data General's history complete with tech specs a 'hello, world' assembly code example, and many hyperlinks to DG stuff.
	www.wps.com /NOVA4 (375 words)

	products (Site not responding. Last check: 2007-10-14)
		Data General Nova, Eclipse and MV hardware is reproduced down to the register level.
		It is object code and data file compatible with Data General ICOBOL systems, so complete compatibility with DG systems is assured down to the binary level.
		It is designed to be very compatible in function and command format with Data General's AOS/VS Sort/Merge utility, yet provides many significant extensions and capabilities.
	www.wildharecomputer.com /products.htm (622 words)

	C:\BELLBOOK\P001-100\HTMFILES\CSP0664.HTM (Site not responding. Last check: 2007-10-14)
		A contemporary of the PDP-11 is the data General Nova.
		The generic Nova implementation consists of a single fast loop from register file to ALU, to shifter, to condition code sensing, and back to the register file (see Fig.
		The Nova ISP was implemented in a single LSI chip in 1976, a feat not yet matched by the PDP-11 as of 1979.
	research.microsoft.com /~gbell/Computer_Structures_Principles_and_Examples/csp0664.htm (478 words)

	reNOVAte
		Data General hardware diagnostics even run at this level, reflecting the depth of compatibility provided.
		Nova 840 with memory map, multiply/divide and FPU.
		Nova 4 with hardware signed/unsigned multiply/divide, stack and byte instructions, and FPU and memory map.
	www.novasareforever.com /products/renovate.htm (1043 words)

	Data General Nova 1200 on Flickr - Photo Sharing!
		Data General Nova 1200 on Flickr - Photo Sharing!
		The Data General Nova 1200 - core memory minicomputer.
		Sign up for a free account, or sign in (if you're already a member).
	www.flickr.com /photos/iannucci/347299998 (98 words)

	products (Site not responding. Last check: 2007-10-14)
		Data General Nova, Eclipse and MV hardware is reproduced down to the register level.
		It is object code and data file compatible with Data General ICOBOL systems, so complete compatibility with DG systems is assured down to the binary level.
		It is designed to be very compatible in function and command format with Data General's AOS/VS Sort/Merge utility, yet provides many significant extensions and capabilities.
	www.wildharecomputers.com /products.htm (622 words)

	Minicomputer Summary
		Minicomputers generally have a word size of 8–18 bits (register size); a memory size of 32,000–64,000 16-bit words, or 16,000–32,000 32-bit words; a processing speed of 200–300 kilo-instructions per second (KIPS); and a price in the range of $3,000 to $50,000.
		The term "minicomputer" evolved in the 1960s to describe the "small" third generation computers that became possible with the use of transistor and core memory technologies.
		The 74181 arithmetic-logic unit (ALU) was commonly used in the CPU data paths.
	www.bookrags.com /Minicomputer (1848 words)

	NOVA \| Transcripts \| The Truth About Impotence \| PBS
		Major funding for NOVA is provided by the Park Foundation.
		The muscle is quite strong, generating enough force to list as much as 800 times its own weight.
		And see, our generation was raised not to talk about these things.
	pbs.org /wgbh/nova/transcripts/2510impotence.html (6927 words)

	TechOnLine - ADAC Pavilion
		ADAC Corporation manufactures a wide range of data acquisition products, including high speed A/D boards with C40 comm ports to interface directly to most C40 DSP cards.
		Designed for the Data General NOVA and the Digital Equipment Corporation PDP-8 computers, ADAC's 500/DGC and 600/8E Series were the first data acquisition boards that plugged directly into the host computer bus.
		With 8 analog inputs, 2 analog outputs and a mixture of digital I/O, these boards set the standards that all major PC data acquisition companies continue to follow today.
	www.techonline.com /community/member_company/non_member/3 (122 words)

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