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Topic: SWTPC

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	SWTPC - Biocrawler (Site not responding. Last check: 2007-10-27)
		SWTPC (Southwest Technical Products Corporation) was a designer and manufacturer of electronic products, many available in kit form, based in San Antonio, Texas, in the US.
		When microprocessors (CPU chips) became available, SWTPC became one of the first suppliers of microcomputers to the general public, focusing on designs using the Motorola 6800, and later the 6809, CPUs.
		SWTPC's SS-50 bus was supported by several other manufacturers (eg, Midwest Scientific Inc, Smoke Signal Broadcasting, Gimix, Helix, Tano, etc) and was even extended to the SS-64 (for the 68000 CPU) by Helix.
	www.biocrawler.com /encyclopedia/SWTPC (235 words)

	SWTPC - Wikipedia, the free encyclopedia
		SWTPC's SS-50 backplane bus was supported by several other manufacturers: (Midwest Scientific Inc, Smoke Signal Broadcasting, Gimix, Helix, Tano), etc, It was extended to the SS-64 (for the 68000 CPU) by Helix.
		SWTPC also designed one of the first affordable printers available for microcomputer users; it was based on a receipt printer mechanism.
		SWTPC was a pioneer of open source software.
	en.wikipedia.org /wiki/SWTPC (546 words)

	The SWTPC. SOUTH WEST TECHNICAL PRODUCTS M6800
		SWTPC attended and accepted the resulting Kansas City Standard of 300 baud data speed, with 24OOHz sine wave representing a logical one, and 12OOHz sine wave representing a logical zero.
		SWTPC had no problems with software until the first floppy disks were ready to be connected to the 6800 computers.
		SWTPC eventually withdrew completely from the "hobbyist" market, and only built business machines and special purpose computers that were used in point-of-sale systems and other commercial applications.
	pc-history.org /swtpc.htm (4406 words)

	The SWTPC. SOUTH WEST TECHNICAL PRODUCTS M6800
		SWTPC used these chips to design a computer that was simpler to build and program than the Altair design, and cost much less to manufacture.
		SWTPC attended and accepted the resulting Kansas City Standard of 300 baud data speed, with 24OOHz sine wave representing a logical one, and 12OOHz sine wave representing a logical zero.
		SWTPC eventually withdrew completely from the "hobbyist" market, and only built business machines and special purpose computers that were used in point-of-sale systems and other commercial applications.
	www.pc-history.org /swtpc.htm (4406 words)

	SWTPC
		SWTPC (for Southwest Technical Products Corporation) was a designer and manufacturer of electronic products, many available in kit form.
		When microcomputers (CPU chips) became available, SWTPC became one of the first suppliers, focusing on the Motorola 6800, and later 6809, CPUs.
		Technical Ssystems Consultants, first of West Lafayette Indiana (Purdue University) and later of Chapel Hill North Carolina was the foremost supplier of software (operating systems, applications, etc) for the SWTPC hardware.
	www.ebroadcast.com.au /lookup/encyclopedia/sw/SWTPC.html (149 words)

	SwTPC S/09 computer
		SwTPC was originally an electronics supply company, selling power supplies, inexpensive video displays, and electronics kits to hobbyists.
		1975 - SwTPC 6800, with the Motorola 6800 CPU.
		Instead of using the S-100 bus which had become standard on many other computers, SwTPC utilized their own bus, the SS-50 bus, as seen above, with only 50 connections instead of 100.
	oldcomputers.net /swtpc-s09.html (450 words)

	SWTPC 6800
		The second SWTPC 6800 in my collection, pictured at the top of the page, is a more traditional machine.
		I've got about one-and-a-half SWTPC systems - including the 'till roll' printer, all the manuals (I think) and the 6809 upgrade card to allow Flex-9 to be run (and the 8 Flex-9 system disks).
		Would be happy to 'look after' any surplus SWTPC kit and/or get together to set up some sort of archive/library of the ROM images so we can get these beasties running again.
	www.vintage-computer.com /swtpc6800.shtml (854 words)

	Re: Resurrecting a SWTPc system. (Site not responding. Last check: 2007-10-27)
		The first question is which Motorola Processor are you talking about as SWTPC eventually provided systems for 6800, 6809 and 68000.
		SWTPC eventually came out with their own "swat bug" (SWTBUG) which used the whole 1Kb.
		SWTPC just implemented the hardware in a much more expandable format.
	www.talkaboutcomputing.com /group/comp.sys.m6809/messages/6151.html (510 words)

	UniFlex - Wikipedia, the free encyclopedia
		It was released for DMA-capable 8" floppy, extended addresses, Motorola 6809 based computers; eg SWTPC, GIMIX.
		On SWTPC machines, it also supported a 20MB, 14" hard drive (OEM'd from Century Data Systems) in 1979.
		It was based on Mini-Micro CDS/ISIS that is an advanced non-numerical information storage and retrieval software developed by UNESCO since 1985 [1].
	en.wikipedia.org /wiki/UniFlex (107 words)

	SwTPc History (Site not responding. Last check: 2007-10-27)
		Before selling any computers, SwTPC had been in business selling electronic kits, amplifiers and such.
		We will all be very lucky if the industry is ever again dominated by companies and people like these.
		Daniel Meyer, the founder of SwTPC, passed away in May of this year (1998).
	www.cs.unc.edu /~yakowenk/swtpc/history.html (249 words)

	The SWTPC Computer Documentation Repository
		This site's purpose is to address the lack of technical information for some of the rarer vintage computers and related peripherals, with a strong focus on SWTPC.
		I realize that SWTPC also supplied in kit form audio amplifiers, a theremin, frequency counters, and I'm sure other things I'm not aware of.
		If you have scanned documentation, literature or catalogs and scanned or digital photos of these non-computer SWTPC items and would like to have them added to this site, please contact me.
	www.swtpc.com (547 words)

	[DIY] Cost of high power amps
		Leach spec'ed these in his early designs, they were also used in the GAS Ampzilla, SWTPC, and many other amplifiers.
		Even better would be to just buy a pair used and bridge them to get the power your looking for, or purchase another top rated higher power model as others have suggested.
		I layed it out and scratch built the chassis and power supply from surplus parts when I was a kid with a lot of time on my hands, and finished it in my Junior year in college when I got the rest of the parts together.
	www.snippets.org /pipermail/diyspeakers.new/2003-May/012617.html (597 words)

	SWTPC - TheBestLinks.com - Central processing unit, Integrated circuit, Microprocessor, Motorola 6800, ... (Site not responding. Last check: 2007-10-27)
		SWTPC - TheBestLinks.com - Central processing unit, Integrated circuit, Microprocessor, Motorola 6800,...
		SWTPC, Central processing unit, Integrated circuit, Microprocessor, Motorola...
		SWTPC product history website (http://www.swtpc.com/) – By Bill Dawson and Michael Holley
	www.thebestlinks.com /SWTPC.html (252 words)

	DigiBarn: SWTPc 6800 and S/09 (Southwest Technical Products Corp history)
		The Southwest Technical Products 6800 was introduced in late 1975 based on the the SS-50 bus and the Motorola 6800 processor rather than the S-100 bus with Intel or Z-80 processor boards.
		We are especially pleased with the condition of the rare blue monitor.
		When I bought a copy from SWTPC one of the authors contacted me to find out how I was going to use it.
	www.digibarn.com /collections/systems/swtpc-6800/index.html (748 words)

	SS30HC11 (Site not responding. Last check: 2007-10-27)
		Typically one port would be used as a data port and the other as a control port.
		Data would be clocked into that data port from the SWTPC and a byte written to the control register to indicate the data is valid.
		A write from the SWTPC to its control register generates an interrupt request to the HC11, and similarly a write by the HC11 to the SWTPC generates in interrupt to the SWTPC.
	members.optusnet.com.au /jekent/ss30hc11 (303 words)

	The first decade of personal computing.
		Most of the companies who made these systems are not around today (SWTPC, Southwest Technical Products, is an exception); indeed, many lasted only two or three years.
		SWTPC also made a terminal kit for use with any TV set priced at only $175.
		Dan Meyer's SWTPC is one of the few survivors from the early days.
	www.atarimagazines.com /creative/v10n11/30_The_first_decade_of_perso.php (6810 words)

	SWTPC PR-40 Printer \| Applefritter
		Steve Jobs wrote an article about interfacing an Apple 1 to the SWTPC PR-40 printer in the October 1976 issue of Interface Age.
		A switch was connected and whenever you wanted to print you put the switch in the "on" position and everything that went to the screen went to the printer, as well.
		This is an original SWTPC PR-40 printer ribbon.
	www.applefritter.com /node/2828 (240 words)

	SWTPC 6800
		The SWTPC 6800 was the first and most famous of a line of computers based upon the SS-50 bus.
		The SS-50 bus is 50 pin (obviously) bus that is very "hacker-friendly"; the pins being made by a sequence of male Molex connectors.
		The two systems pictured are my original SWTPC 6800 (top) and a SWTPC 6809.
	www.obsoletecomputermuseum.org /swt (414 words)

	OLD-COMPUTERS.COM : The Museum (Site not responding. Last check: 2007-10-27)
		The SWTPC S/09 system was the second computer of the brand based on the Motorola 6809 microprocessor, said to be the most powerful 8-bits general purpose MPU available.
		My old SWTPC has an IDE interface and an IDE HD with 96 partitions of 16 megabytes each (the maximum size that can be supported by the FLEX operating system).
		Hardware and software design of the IDE interface was a colaboration of members of the FUG, Flex User Group.
	www.old-computers.com /museum/computer.asp?st=1&c=562 (257 words)

	SWTPC 6800 (Site not responding. Last check: 2007-10-27)
		The SWTPC 6800 was the first and most famous of a line of computers based upon the SS-50 bus.
		The SS-50 bus is 50 pin (obviously) bus that is very "hacker-friendly"; the pins being made by a sequence of male Molex connectors.
		The two systems pictured are my original SWTPC 6800 (top) and a SWTPC 6809.
	obsoletecomputermuseum.org /swt (414 words)

	SWTPC Reunion Dinner (Site not responding. Last check: 2007-10-27)
		Before the dinner Gary took me to the old SWTPC facility at 219 W. Rhapsody.
		That is me (Michael Holley) in the Seattle Seahawks hat a week after the Super Bowl.
		Here is were SWTPC (DEMCO) started in 1963.
	www.swtpc.com /mholley/History/SWTPC_Dinner.htm (217 words)

	Southwest Technical Products Corp
		I collected almost every computer kit that SWTPC made from 1976 to 1981, and somehow I still have all the documentation.
		The FLEX User's Group has done a good job on most of the TSC and SWTPC software documentation but no one has done the hardware documentation.
		The early SWTPC kit documentation was typewritten and had some misspelled words and simple formatting.
	www.swtpc.com /mholley (502 words)

	Mailgate: comp.sys.m6809: Free (nearly) SWTPC 6809 system & accessories (Site not responding. Last check: 2007-10-27)
		Hi, I need to clean out the shed, and that means I have to find a home for my ancient 2MHz SWTPC system and assorted accessories.
		I'll give it away for the price of shipping, or completely free if you're in the Boston area and want to come by and pick it up.
		Re: Free (nearly) SWTPC 6809 system and ac, Bill Janssen
	mailgate.supereva.it /comp/comp.sys.m6809/msg00473.html (119 words)

	Mailgate: comp.sys.m6809: Re: Free (nearly) SWTPC 6809 system & accessories (Site not responding. Last check: 2007-10-27)
		At least you would have to re-seat the boards and maybe some chips.
		Bill K7NOM Bert Vincent wrote: > Hi, > > I need to clean out the shed, and that means I have to find a home for > my ancient 2MHz SWTPC system and assorted accessories.
		Free (nearly) SWTPC 6809 system and access, Bert Vincent
	mailgate.supereva.it /comp/comp.sys.m6809/msg00474.html (219 words)

	Computer / Game Console History - SWTPC 6800 (Site not responding. Last check: 2007-10-27)
		The SouthWest Technical Products Corporation (SWTPC) 6800 is the first production Motorola computer system.
		Before getting into the computer business, SWTPC built audio kits, such as amplifiers and preamplifiers for home audio use.
		That's why the SWTPC 6800 looks so much like a stereo amplifier.
	www.maniacworld.com /game_console_history/SWTPC6800.htm (110 words)

	Personal info for dfaught (Site not responding. Last check: 2007-10-27)
		My brother, as a ham radio and electronics nut, built a SouthWest Technical Products Company (SWTPC) 6800-based microcomputer around 1975 and we both played with software for it.
		I vaguely remember building a simple speech recognition board for the SWTPC and some software using Z-crossing based on an article that I read somewhere (I think it was Kilobaud).
		I had a letter to the editor published in Byte in December 1976 (whoo-hoo!) about IF-ELSE and CASE statements that drew a few comments.
	people.squeakfoundation.org /person/dfaught (1657 words)

	The Interface Mafia - The Mafiosi - Kevin O'Boyle
		A disembodied head that has been floating around the computer industry since the predawn days of the microcomputer.
		Strangely, Kevin missed the early days of the personal computer revolution (well, If you don't count his SWTPC and IMSI 8080 -- and who does?); If he wasn't off in the world magnetic cores and punch cards, he was traveling the country and working odd and various jobs.
		His first reintroduction to computers smaller than buildings came when he was employed by Penn State University's Microcomputer Information and Support Center (M.I.S.C. -- cute, huh?).
	www.tobyrush.com /software/imob/mafiosi/bios/kevin.html (456 words)

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