Sold: Vintage IASIS ia7301 Computer in a Book - Page 1
Forum section: electronics / general

author: Mr Simpleton
author_rank: Unknown
timestamp: February 25, 2015, 10:50:21 pm
content: This item is now sold! Thanks...Scored something that I have no need for... Rather than go through E-bay, I'll see if anyone interested in giving me an offer I cannot refuse:Complete IASIS ia-7301 computer learning s/n 1097 NEC D8080A-2 ceramic and round cover over chipInstruction BookComputer programming pad unusedComputer 6-PAC; Six casettes with programs and book with program listingsPower supply (original?) 117 VACAudio cables 3.5 mm mic/audioEdge connector.It may very well head for the bin... but sometimes people do collect this stuff... who knows? No harm in asking

author: codeboy2k
author_rank: Super Contributor
timestamp: February 25, 2015, 11:40:34 pm
content: Before you bin it, scan the schematics at leastIt looks like a basic 8080 with ram, rom, front-panel i/o, latches for i/o, uart for cassette, and fsk modem... but it's always cool to read back on this old stuff.with the schematics we can make an emulator or simulator

author: RJFreeman
author_rank: Regular Contributor
timestamp: February 26, 2015, 12:01:18 am
content: That kind of thing brings back a few memories (although not that specific model).I am twisted enough to be interested, if you do not get a better offer closer to home, as I suspect postage to Aus would probably be horrendous, but if the alternative is a trip to the bin....

author: Mr Simpleton
author_rank: Unknown
timestamp: February 26, 2015, 09:04:27 am
content: Have yet to find a schematic! Guess that was closed secret so noone would build a clone....Just a simple board for learing to program machine code, and store programs on casette tapes.As for emulator, a 8080 emulator and the address space should be sufficientI'll see what I can find!Quote from: codeboy2k on February 25, 2015, 11:40:34 pm

author: codeboy2k
author_rank: Super Contributor
timestamp: February 26, 2015, 09:31:54 am
content: Quote from: Mr Simpleton on February 26, 2015, 09:04:27 amRight, something with the address map, and I/O ports and what hardware is at those ports would be a start for an emulator. It can be grafted into any 8080 emulator already in the wild as open-source. (but oddities like phantom ports due to addresses not being fully decoded in the hardware would not get emulated without a schematic )

author: AchimHB
author_rank: Newbie
timestamp: June 20, 2015, 03:26:59 pm
content: Hi,I am a collector of vintage computers. I like the old single pcb computer and already got KIM-1, SYM-1, AIM-65 etc.So I am interested in your computer. Is it still available?Your asking price?I am from Germany but if you will not ship international: I got a second address in Indiana/USA.Thanks,Achim

author: Mr Simpleton
author_rank: Unknown
timestamp: June 20, 2015, 07:22:45 pm
content: I do ship world wide... but shipping cost is horrendous!I am located in Sweden so shipping with-in EU should present no problems at all!Item is still here..... awating an eager collectorMake me an offer I cannot refuse...More pictures can be provided up on asking!Cheers

author: PA0PBZ
author_rank: Super Contributor
timestamp: June 20, 2015, 07:36:30 pm
content: QuoteOh come on, send him the thing already

author: Fraser
author_rank: Super Contributor
timestamp: June 20, 2015, 07:56:18 pm
content: Interesting thread.I have a very nice 1970's Texas Instruments TMS99xx series processor training SBC, with a TI calculator front for the keypad and display. Lovely bit of kit. I will have to find a new home for that unit some time. My set includes teh original manuals and large PSU so I could even use it to learn about this early processorhttps://en.wikipedia.org/wiki/Texas_Instruments_TMS9900http://www.avjd51.dsl.pipex.com/tms9995_eval_module/downloads/tms9995_evaluation_module_brochure.pdfI just found one for sale on ebay and the seller thinks its worth something:http://www.ebay.com/itm/1979-Texas-Instruments-TM990-189-Single-Board-Computer-very-rare-/371229275981Never bin such history. I binned a complete and great condition Australian Microbee XT clone computer c/w original VDU..... still regret doing thatI still have the full Microbee schematics somewhere. A mad moment of being tidy I suppose. There are various organisations that collect such early examples of computing to show the public the development over the decades. Bletchley Park in the UK has a museum of computing and that is where I should have sent the Microbee.Aurora

author: TopLoser
author_rank: Unknown
timestamp: June 20, 2015, 11:40:24 pm
content: I remember pushing a load of the original Commodore PET computers (with the shitty calculator style keyboards) out of the back of a van into a skip many many years ago.I guess they have no value now (gulp lol)