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| | IMSAI 8080 computer |
 | | The IMSAI was not the only computer to copy MITS' S-100 bus scheme, but it may have been the first. | | | Some call the IMSAI the first clone of another computer system, in this case, of the MITS Altair 8800, a similar computer which was release just a few months earlier. | | | Built by IMS Associates, Inc. of San Leandro, California, the IMSAI 8080 is one of the first consumer computers available. |
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http://www.oldcomputers.net/imsai8080.html
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| | The IMSAI 8800 |
| | The computer itself might be an Imsai with its 8080 CPU, but even that was likely to be a Z80 CPU from TDL, or Cromemco. | | | In fact, the Imsai 8080 became one of the less popular computers in the stores. | | | IBM had developed the floppy disk to load software, and Altair, Imsai, and other companies were working to adapt it for use on microcomputers. |
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http://www.pc-history.org/imsai.htm
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| | Altair 8800 - Wikipedia, the free encyclopedia |
| | Programming the Altair was an extremely tedious process where one toggled the switches to positions corresponding to an 8080 opcode, then used a special switch to enter the code into the machine's memory, and then repeated this step until all the opcodes of a presumably complete and correct program was in place. | | | The rest, as they say, is history, and the S-100 bus was eventually acknowledged by the professional computer community and adopted as the IEEE-696 computer bus standard. | | | With the release of the first 8-bit microprocessor, the Intel 8008, in 1972, and the more powerful 8080 in 1974, a number of hobbyists started designing microcomputer kits. |
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http://en.wikipedia.org/wiki/Altair_8800
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| | Imsai 8080 Computer |
| | I always preferred the Imsai over any other, due to the fact I wanted to build it / program it / and get right into the Nitty Gritty of studying how the software interacts with the hardware to perform the wonderous function it was capable of. | | | Imsai is certainly among those to be considered on the list. | | | You are at "One" with the electronic computing environment, so to speak! |
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http://members.aol.com/e11jery23
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| | IMSAI 8080 |
| | The IMSAI 8080 is often considered to be the first "clone" computer. | | | Although the developers had a machine in the planning stages at the time they reacted to the success of the MITS Altair 8800 and followed its bus specification. | | | IMSAI drive subsystem (floppy and hard drive) - IMSAI VDP and 8048 systems. |
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http://www.vintage-computer.com/imsai8080.shtml
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| | Peter's IMSAI Page |
| | IMSAI used the 8048 in a couple of products, one of which was an "intelligent keyboard" which could be programmed to play tones from its speaker and to communicate with a computer in various modes. | | | While there, I wrote an assembler (in 8080 assembly code) for the Intel 8048/8748 microprocessor. | | | After working at IMSAI, I wrote some accounting software on a friend's IMSAI in NorthStar Basic. |
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http://www.sonic.net/~peterbe/imsai/index.html
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| | Introduction |
| | Whether your IMSAI 8080 computer is to be used up-front, or hidden in your dedicated application, you’ll find it the right system to start with, and the best to grow with. | | | While the computer is designed as a high-quality commercial computer, there’s no compromise in quality or value if you purchase it as a kit. | | | It’s modular, so you can easily add to your IMSAI 8080 system. |
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http://rwebs.net/micros/Imsai/intro.htm
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| | IMSAI-based S-100 computers and Documentation List |
| | Later on, IMSAI referred to the MITS and IMSAI 100-pin bus as the S-100 bus, a term disliked by MITS management. | | | The IMSAI 8080 was the second "S-100" computer made, offered in 1976 after the MITS Altair 8800 by "IMS Associates Inc.", known shortly afterward as "IMSAI". | | | IMSAI ads of the period referred to their bus and cards as "MITS compatible". |
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http://retrotechnology.com/herbs_stuff/d_imsai.html
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| | The Official IMSAI Web Site |
| | Actually, that article told of an early predecessor to the IMSAI 8080 that was developed prior to the announcement of the Altair, but tentatively based on a DEC bus instead of what became known as the S-100 bus, introduced by MITS in the Altair. | | | I replied to Ed that I have always rejected the notion that the IMSAI 8080 was the first "computer clone" since it doesn't resemble the Altair in any way other than choice of bus and cabinet color. | | | The IMSAI Blue is a very close match for Altair, Processor Technology, Morrow Designs (including ThinkerToys), Digital Systems, and similar early microcomputer systems that used this popular color. |
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http://www.imsai.net
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| | A Potted History of WordStar |
| | The IMSAI 8080 was a copy of the original 8-bit computer, the MITS Altair. | | | Rubinstein left IMSAI with $8,500 in cash to form his own company, which he called MicroPro International Inc. Rubinstein obtained a report by DataPro on the current state of word processing computers and the features offered by the software they ran (at this time word processors were based on specialist computer hardware). | | | Rob Barnaby worked on enhancements to the CP/M operating system, adding file buffering to allow files that were larger than the computer's memory to be edited, and other useful and much needed functions. |
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http://www.wordstar.org/wordstar/history/history.htm
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| | IMSAI 8080 |
| | The IMSAI found a nitch with computer hobbyists that actually wanted a computer that worked. | | | Generally accepted as the second personal computer, after the Altair, the Imsai was much more popular. | | | This is what early personal computing looked like. |
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http://www.obsoletecomputermuseum.org/imsai
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| | DAVES OLD COMPUTERS - IMSAI 8080 |
| | The IMSAI 8080 - Arguably the first personal computer "clone", this machine combines function and form in what may be the most attractive microcomputer ever. | | | If the Atlair is the first Personal Computer, then the IMSAI 8080 qualifies as the first Personal Computer clone. | | | The IMSAI gained widespread recognition when it was featured in the 1984 movie Wargames. |
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http://www.parse.ca/~ddunfield/museum/imsai/index.htm
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| | Jefferson Computer Museum - Altair and IMSAI Emulators |
| | In the early 1990s, Claus Giloi wrote a Windows software emulation of the front panel of the Altair 8800b and the IMSAI 8080 computers. | | | There are many other 8080 or Z-80 emulator sources out there, but this emulation is unique in its ability to single-step and emulate the LEDs. | | | For example, the emulation of the CPU could be verified. |
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http://www.threedee.com/jcm/emu8080
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| | IMSAI 8080 |
| | This was the real start of the Personal Computer revolution although it was not until a couple years later when the first IBM PC came out that the term "Personal Computer" replace the term "home computer". | | | In 1975, the magazine Popular Electronics came out with an article about how to build you own "home computer" based on the Intel 8080 microprocessor, the Altair 8080. | | | By 1984 he was doing quite a business installing and developing programs for small businesses in the area using the IBM XT. |
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http://www.mixsonian.com/Mixson-Larry/Themes/Computers/IMSAI8080.htm
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| | Harte Technologies: IMSAI Series Two |
| | Check out the original IMSAI 8080 on my Computer History Page | | | The IMSAI Series Two I/O board utilizes an SMC Super-I/O chip to provide two serial ports, a parallel port, keyboard and mouse ports, as well as floppy disk support. | | | More work is needed to provide monitor support for some of the more advanced features of the Series Two, such as the FLASH memory programming, the IDE controller, modern floppy disk formats. |
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http://www.imsai8080.com
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| | Mailgate: comp.os.cpm: Re: A rare history of CP/M and the Altair/IMSAI story |
| | It's also important >> to note that IMSAI wasn't alone in it's efforts to utilize the >> Intel 8080, as certainly others were considering a suitable >> commercial platform for this pioneering processor. | | | >> >> For those who've always believed that IMSAI was the first >> computer clone (of Altair), I think you'll be surprised to find >> that the IMSAI 8080 existed at least 6 months before the >> Altair, but perhaps designed for the Intel Multibus. | | | An ironic story of the time was how former micro leader Texas Instruments dropped the ball and let Intel, Zilog, and Chuck Peddle's MOS Technology (the 6502) propel themselves into the forefront of the newly emerging personal computer market. |
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http://www.mailgate.org/comp/comp.os.cpm/msg09425.html
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| | LookSmart - Directory - IMSAI Computers |
| | Official IMSAI computers page features product news, parts and support, testimonials, and a history of the vintage computing machines made by the Fischer-Freitas Company. | | | Join the Zeal community and help build the "IMSAI Computers" Directory Category. | | | Read about the vintage computer generally accepted as the world's second personal computer, after the Altair. |
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http://lsxml.looksmart.com/p/browse/us1/us317831/us317876/us280692/us72251/us928985/us10140200
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| | PC History |
| | The Imsai 8080 developed by IMS Associates, was designed to use the same bus structure as the Altair 8800 with interchangeable circuit boards. | | | It supplanted the Altair A model as the standard S-100 Bus computer. | | | It was first introduced in the January, 1975 issue of Popular Electronics magazine as a construction project. |
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http://www.pc-history.org
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| | IMSAI |
| | The computer they designed, the IMSAI 8080, was very similar to the Altair 8800 and was designed to run the same software. | | | The IMSAI 8080 used an Intel 8080A processor, and came as a base unit with 4K RAM. | | | The IMSAI 8080 aimed to take advantage of the Altair's popularity, the inability of MITS to meet a growing demand for the product, and the need to improve on some of the internal components. |
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http://www.smecc.org/imsai.htm
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| | The "Wargames IMSAI" |
| | I suggested an IMSAI FDC-2 (the dual Calcomp 142 8" floppies in an enclosure similar to the 8080), and he readily accepted the offer. | | | We established the company as an independent service organization for IMSAI computer products, floppy and hard disk repair, terminal, monitor service/sales, and other opportunities in the developing microcomputer market. | | | Mike told me that the screenplay writer Lawrence Lasker stipulated that an IMSAI 8080 be used as the visual prop for the central character's computer. |
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http://www.imsai.net/movies/wargames.htm
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| | IMSAI 8080 computer |
| | Within a year or two, more user-friendly computers appeared on the market, and IMS Associates, Inc. filed for bankruptcy in 1979. | | | Although it didn't have any peripherals of its own, or even any expansion ports, numerous S-100 cards were available to extend its capabilities. | | | The IMSAI was available fully assembled or in a kit form which must be assembled by the user. |
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http://oldcomputers.net/imsai.html
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| | S-100 Bus List |
| | Examine this document for a list of IMSAI and Altair signals, as well as our bus lists in this document. | | | The Alpha Micro AM-100 used a Western Digital multichip processor set - the same one used to emulate the PDP-11 for the LSI-11 - and used most of the S-100 bus pins in a fashion similar to the IMSAI bus. | | | Various manufacturers used slight variations of the IMSAI S-100 bus; even MITS varied their bus for later Altair models. |
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http://retrotechnology.com/herbs_stuff/s100bus.html
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| | Engadget |
| | Anyway, computers like the Imsai and Altair were very important steps in developing the computer we have today. | | | Jonathan N the registered REPUBLICAN: You boviously don't know your computer history. | | | If you're into retro computing &; and we mean really retro — then you're going to have to pick up the Imsai Series Two. |
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http://www.engadget.com/entry/1234000633054952
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| | IMSAI 8080 - Wikipedia, the free encyclopedia |
| | (later renamed to IMSAI Manufacturing Corp.) in 1976, was an early Intel 8080, S-100 bus based computer, compatible with its main competitor, the earlier MITS Altair 8800, by which it was inspired. | | | The IMSAI machine ran a highly modified version of the CP/M operating system called IMDOS. | | | As of late 2004, there are reports of an IMSAI Series Two kit being developed, featuring a 50 MHz Zilog eZ80 CPU (see the external link, below). |
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http://www.wikipedia.org/wiki/IMSAI_8080
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| | IMSAI 8080 |
| | You might want to reconider this and just put |
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http://www.groupsrv.com/computers/about54830.html
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| | The IMSAI I-8080 |
| | This August, 1976 brochure of 15 pages (back cover basically blank) is black and white with a blue spot color added for titles, etc. It provides a good deal more text explanation of the system and its components than does the color MITS Altair brochure, while its photos are smaller and black and white. | | | I bought an IMSAI 8080 as my second microcomputer when I decided to get into board design and testing. |
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http://www.rwebs.net/micros/Imsai/Default.htm
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| | Top Five Vintage Computers Turn Dust into Dollars |
| | MITS Altair's 8800—The January 1975 issue of Popular Electronics heralded the arrival of the Altair 8800, a DIY kit based on Intel's third-generation microprocessor, the 8080. | | | Click here to read more about the opening of the Computer History Museum. | | | IMSAI 8080—Immortalized in the movie "War Games," the 8080 was first released in 1975, and over the next 11 years IMSAI produced between 17,000 and 20,000 units. |
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http://www.eweek.com/article2/0,1759,1780863,00.asp
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| | System Source - Computer Museum |
| | The IMSAI 8080 used an Intel 8080A processor running at approx. | | | The IMSAI 8080 was the very first micro computer shipped fully assembled and ready to go. | | | Input/output was through front panel switches and LED's, without additional peripherals. |
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http://www.syssrc.com/html/museum/html/imsai.html
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| | IMSAI Guide |
| | But it's still a very cool bit of software, and I credit it with inspiring me to write the Elf simulator... | | | One thing the Elf has that the IMSAI simulator sorely needs - LOAD/SAVE to disk!!! | | | I'm not sure how much "memory" these simulators have, but basically they're both 8080 microprocessors with a few K of RAM and a front panel. |
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http://www.incolor.com/bill_r/imsai%20guide.htm
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| | IMSAI 8080 |
| | The IMSAI 8080 used an Intel 8080A processor, and came with 4K RAM. | | | I/O was through front panel switches and LED's, without additional peripherals. | | | The IMSAI, from IMSAI Manufacturing of San Leandro, California |
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http://ed-thelen.org/comp-hist/imsai.html
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| | Subject: Question re:IMSAI 8080 |
| | I want to know [ looking for 5.25: CP/M for the Imsai ] >in storage for about 10 years and I'm considering resurrecting it. | | | Date : Fri, 23 Feb 1990 12:47:15 GMT From : zaphod.mps.ohio-state.edu!wuarchive!texbell!inebriae!bill@tut.cis.ohio-state.edu (Bill Kennedy) Subject: Question re:IMSAI 8080 In article <27185@cup.portal.com> Gregory@cup.portal.com (Gregory Paul Spear) writes: >I have an Imsai 8080 with both 5 1/4 and 8 inch drives. |
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http://www.mdfsnet.f9.co.uk/Archive/info-cpm/1990/02/23/124715.htm
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| | IMSAI 8080 from LiveJournal |
| | The Law of the Mind - It's better to be first in the mind than first in the marketplace; ie - Apple Computers, easier to remember than Altair 8800 or IMSAI 8080. | | | Go retro with the Imsai Series Two If you’re into retro computing — and we mean really retro — then you’re going tohave to pick up the Imsai Series Two. | | | Also helps finding: IMSAI8080 msai 0880 isai 080 imai 880 imsi 800 imsa 808 umsai IMSAI 8080 |
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http://www.ljseek.com/search/IMSAI%208080
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| | Novice Stock Trader |
| | Intel 8080 users Manual listing Instruction Set & Hardware Architecture | | | I also own a couple of late model Pentium powered computers, but my Imsai is my favorite. | | | Optical programmer for Eprom chip that's holds 8085 operating system (Telephone controller). |
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http://members.aol.com/e11jery23/generalinfo.htm
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| | IMSAI 8080 Processor Card? |
| | > > > > > >Marty > > > > Hi Marty > Many of the original 8080 processor cards were replaced > by newer Z80 cards. | | | The sad thing is that so manu Imsai and Altair CPU boards were thrown away :-(If you use a replacement CPU card just make sure you disable any of the "extra" functions such as POJ and MWRITE. | | | One can recognize these by the fact that > they have a 16 pin dual inline socket (looking like a > missing IC). |
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http://www.classiccmp.org/pipermail/cctalk/2005-June/196569.html
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| | IMSAI 8080 - rFind.net |
| | En KS-10 har istället en Intel 8080 -baserad front end-dator. | | | Svenska wikipedia har inte någon artikel om "IMSAI 8080" ännu. | | | Du kan också söka efter IMSAI 8080 i andra artiklar på svenska wikipedia. |
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http://www.rfind.net/info/IMSAI_8080
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| | IMSAI 8080 |
| | I already have the problem that I can't read some fd's of the early 80s. | | | :) And also the most IMSAI I'v seen (on other boards - just to get power up a bit more comfortable :) > And anyway, a number of S100 cards included boot ROMs, etc. Those need to > be backed up. | | | >> Hmm, IMSAI's didn't have ROMs (or PALs and FPGAs, programmable logic had > The topic has drifted somewhat from the subject line - I wasn't only > refering to IMSAIs, but also to LISAs, etc, which most certainly do > contain ROMs. |
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http://www.classiccmp.org/pipermail/cctalk/1998-June/102984.html
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| | Apple II History Museum - Computers: IMSAI 8080 |
| | Apple II History Museum - Computers: IMSAI 8080 | | | A descendant of the Altair 8800, the IMSAI took the concept used in the Altair and improved it with a better front panel and more durable switches. | | | The Apple II History is brought to you as a service of foreThought.net, providers of internet services for the value-minded business. |
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http://apple2history.org/museum/computers_apple1/imsai8080.html
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| | The Nitpickers Site: Movie Nitpick - WarGames - 1983 |
| | I noticed they jazzed up the system with floppy drives however. | | | The Imsai dates from the 1970's and woefully inadequate for the hacking he was doing, as the Imsai required you to flip front panel switches manually to program it. | | | Movie Title: WarGames - 1983 (Help support this site, buy this movie Buy.com) |
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http://www.nitpickers.com/movies/nitpicks/30000/29831.shtml
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| | IMSAI 8080 |
| | See below for specifications and information on this system. | | | IMSAI 8080 computer original price: $439 kit, $621 assembled (exactly the same price as the Altair) | | | IMSAI built a heavy duty machine, and their early ads shared that no-nonsense philosophy. |
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http://www.computercloset.org/IMSAI8080.htm
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| | Imsai 8080 w/ CPM |
| | I have a IMSAI 8080 with Dual 8 in. | | | The IMSAI itsefl dates from June 1976 with some upgrades, but largely intact. | | | Is this worth getting in running condition again, which shouldn't be too much trouble. |
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http://www.usenet.com/newsgroups/comp.os.cpm/msg00712.html
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| | IMSAI 8080 - Topic Ars OpenForum |
| | You might be able to find / google some CP/M sites. | | | I used it when the IMSAI wasn't otherwise doing something. | | | IIRC, it uses SASI (Shugart Associates Systems Interface - it mutated into SCSI a long time ago). |
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http://episteme.arstechnica.com/eve/ubb.x/a/tpc/f/24609792/m/7960953485
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| | Subject: S100 Cards - IMSAI 8080 |
| | The machine works (I keyed in a test program from its manual), but is there anyway that I can get this to be useful? | | | Date : Tue, 20 Aug 1991 14:18:29 GMT From : psinntp!uupsi!dorsaidm!larryw@nyu.edu (Winston Lawrence) Subject: S100 Cards - IMSAI 8080 I have just picked up an IMSAI 8080 with the front-panel switches, LEDS, and a whopping 8K of memory. |
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http://www.mdfsnet.f9.co.uk/Archive/info-cpm/1991/08/20/141829.htm
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| | Jim's Computer Garage (museum) |
| | Function/Control Switches (Blue) for IMSAI 8080 (center off) | | | Some of these items join the collection as items of interest, and in cases where we find a number of similar items surplus to our needs, we may offer them to the public. | | | Function/Control Switches (Red) for IMSAI 8080 (center off) |
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http://www.rdrop.com/~jimw/j-items.shtml
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| | IMSAI 8080 production count |
| | I was under the impression >that Cromemco's boxes were all built by them, when they decided to >branch out from building add-in video cards and such for everybody's >S-100 system (as I recall, the TV Dazzler was the single most popular >upgrade in the history of the S-100 bus). | | | At 01:38 PM 6/17/97 -0400, you wrote: >When did Cromemco rebrand IMSAI machines? | | | to get specific I'll have to dig thru the catalogs, but Cromemco did for a time market the IMSAI chassis as the Cromemco Z-1, populated with Cromemco cards. |
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http://www.classiccmp.org/pipermail/cctalk/1997-June/084923.html
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| | [No title] |
| | Its maker Bill Millard was hoping to sell the machine to bussiness users. | | | Like the Altair the IMSAI 8080 came in kit form. |
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http://www.cyberstreet.com/hcs/museum/imsai.htm
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| | Articles - CP/IMSAI 8080 |
| | We don't have an article called "CP/IMSAI 8080" |
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http://www.1-ace.com/articles/CP/IMSAI_8080
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