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Text of the page (random words):
vintagecomputer net classic computing and vintage computer restoration projects toggle navigation vintagecomputer net home readme directory contact archives and resources log in create account search posts a website dedicated to vintage computing working with unknown sunsparc by billdeg total messages in this thread 9 updated adding more drives 09 17 2026 the end product a sun sparcstation with well behaving peripheral drives click image to see more photos got a scsi2sd image of sunspark 4 1 4 and set the device to 0 not the default of 3 and installed it on the right hand drive when facing from the front of the computer this is a hack to trick the computer into booting something assigned to drive 0 things you can do from the ok prompt 1 set your external scsi device to address 3 because by default the system will be expecting something to be there 2 from the ok prompt if hard drive and fallback to default disk setenv boot device disk3 disk if cd rom or similar and then try disk6 ok setenv boot device cdrom disk sometimes you have to enter it this way read more new dec tu56 tape images for simh by billdeg total messages in this thread 2 updated reading tape images 08 19 2026 here are some tape images dave gesswein made with me when i visited his house with some mystery tapes to read feel free to download and try them out in simh let me know how it goes tapeimages zip 162 tu56 is a 12 bit pdp8 tape master tu56 is an 18 bit pdp 10 tape or pdp 15 1973 tu56 is a 16 bit pdp 11 tape probably macro 11 stuff if you hex edit the tapes you ll see the columns of 00 s to help indicate whether the tape is 12 16 18 bit https en wikipedia org wiki dectape read more compupro disks archived by billdeg total messages in this thread 1 compupro disk archive from ben stewens from the looks of these many of these disks will return a directory listing on early 80 s cp m systems with a z80 some of these may reqire a specific terminal keyboard map or screen width depending on the system these programs may try to hit memory locations that cause the os to bomb if you re looking for os and other program disks for the compupro click here read more digital tu56 for pdp 9 by billdeg total messages in this thread 3 updated w850 c sent to ricm 07 31 2026 view of a recently donated tu 56 dual tape drive prior to any restoration efforts click image for larger view w850 c bus connecting cable this end goes to the pdp 9 click image for larger view more photos read more c program for reading 9 track tapes by billdeg total messages in this thread 2 updated c program for reading 9 track tapes 07 03 2026 tom hunter sent me a c program for reading 9 track tapes attached via scsi to a linux pc i updated it to try 5 times if the tape does not read and then physically move the tape forward a hair to try a new section of tape assuming the tape is bad it assumes the location of the 9 track drive in linux is called dev nst0 i used this program to read 800 1600 pe and 6250 bpi tapes in an m4 9914 9 track drive recovertap_v2 c tape recovery tool for problematic 9 track scsi tape drives behavior reads from dev nst0 writes recovered data to output file on read error eio issues scsi space command via sg_raw retries read never exits on single read error logs all actions compile gcc wall o2 recovertap_v2 c o recovertap_v2 run sudo recovertap_v2 output bin read more computer history and restoration links by billdeg total messages in this thread 1 the thread date indicated last update suggest a site here bitsavers software and document archive https bitsave avers trailing edge com mirror typewritten software vintage os manuals http www type manual retroarchive multi platform http www retroarchive org not secure textfiles com rtty art repository http artsc es com rtty collection not secure dave dunfield s site vintage computer newbies should start here disk archiving info here https www classi dunfield motherboard and floppy controller test results relating to disk archiving https rails tfdc htm glitchworks products and projects https users vintage html bryan s old computers document archive https read more lnw80 microcomputer restoration by billdeg total messages in this thread 2 updated wiring pinout rgb cable 05 06 2026 the lnw80 computer is a radio shack trs 80 model 1 clone more or less the basic is different and the memory map is different any programs that rely on either of these things will not operate properly but dos plus and new dos for the model i is easily adapted for the lnw80 the photo above displays the opening panel of the modular software associates lnw basic demo lnw basic has commands that employ the lnw80 s color display capabilities click image for larger view with the chassis cover removed this image reveals a twin control board configuration on top is the system ex read more 1981 ohio scientific challenger 8p mf by billdeg total messages in this thread 1 this 1981 ohio scientific challenger 8p missing name plate is i believe the 8p mf model it would have been sold with an additional 8 disk drive unit click image for larger view here s a view of the controllers that make up the system click image for larger view this computer does power up and display the garbled video ram initialization one would expect but i was unable to progress further without the read more items wanted by billdeg total messages in this thread 1 this list is maintained regularly thread date is last update contact me here ibm 9000s a scientific pc produced with at the same time as the ibm xt with built in printer m7261 kd11 b cpu board 1 control logic microprogrammed module pdp 11 05 or 11 10 findex portable computer any model pcs micropac 80 superpac 180 and related dvw microelectronics husky commodore b series hi profile keyboard s at t unix pc keyboard s computer data systems versatile 2 s 100 computer 1977 newark delaware usa computer casio fx 9000p canon cx 1 or bx 3 acorn bbc model a eagle computer eagle ii e i have disks need computer sord sm80x oki 1f com7 laptop morrow decision 1 microvoice nugen sycor model 302 key cassette terminal california technology international 1108 a manual documentation any mid 70 read more univac 9x00 peripheral card 1971 by billdeg total messages in this thread 1 the front view of a 1971 univac 9300 or 9400 controller card the words univac are not printed on the card and it has been difficult to specify where this card came from the date stamp on the 74 series ics found on the front of the board are 1971 click image for larger view here is the rear view of the same card twin 18 pin bus connectors click image for larger view the univac 9000 series was produced to serve as an ibm 360 compatible the first 9000 s were sold in the mid 1960 s by 1971 the 9000 systems being sold by univac 9300 and 9400 were similar to the ibm 360 30 they used ebcdic character read more univac 418 core memory by billdeg total messages in this thread 1 univac core memory univac 418 era this is a piece of a core module full of many of these to make up one contiguous memory space this core is a fraction of a core module of maybe 4k or 8k each magnet is a bit click image for larger view rear view click image for larger view read more isworld net 1997 www time capsule by billdeg total messages in this thread 1 the home page from the july 1997 revision of the isworld design station web site hosted by temple univeristy for use by cis majors and other web designers lloyd and i recovered this web site off of a large dec 3000 500 server workstation that used to host email web sites and other services at temple university from the mid 90 s to early 2000 s hi res image next retrieve the entire site and publish as a historic archive read more electronic music is here feb 1963 by billdeg total messages in this thread 1 click imae for larger view electronic music is here no longer a creature of the wild eyed theorist or artist it has practical applications for the professional and amateur musician james w essex radio electronics magazine february 1963 read entire article read more eprom 27xx mcm6876x rom archive by billdeg total messages in this thread 1 click for larger image in 2011 i described a project related to northstar system monitor 1 5 and to boot cp m or anything using a northstar disk controller click here to read use the link below to download the northstar and other 2708 rom images today i got a new eprom reader burner from kris at mygeekhobby com who builds sells matt millan s design https www mat mcm68766 eproms in a matter of minutes i was up and going i started with my unknown 2708s until i got this reader i had to fire up my imsai 8080 to read the roms that way a newly constructed arduino made eprom burner is a lu read more ibm 1401 core memory plane by billdeg total messages in this thread 1 a single core memory plane from an ibm 1401 click image for larger view this memory plane was on display at the kennett classic computer museum but the frame broke in three places with care the frame and wires were reassembled as you see here by using strong clamps and superglue from page 9 of the ibm 140 data processing system reference manual the ibm 1401 data processing system uses maganetic core storage for storing instructions and data figures 10 and 11 all data in core storage is instantly available and the specical design of the core storage unit makes each position individually addressable this means an instructrion can designate the exact storage locations that contain the datta needed read more older posts 15 threads per page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 resources home manufacturer photos software docs disk images computer history articles scans and files youtube com videos sale trade wanted miscellaneous photo gallery the ultimate vinage computing links list switch to dos prompt view popular topics and faqs tm990 101 m altair 8800bt notes trs 80 model 4 engineering sample altos 5 5ad morrow wunderbuss motherboard fried epson px 8 c64 emulator to run on pc mac 128k with sad mac error 041800 imsai 8080 with processor tech cutter secrecy is the keystone of all tyranny cromemco system three commodore coherent exatron stringy floppy update tm 990 189 or pp189 lanier word processor model 103 univac 1219 rescue imsai 1 4 basic vs mits 8k basic atari 520st dec information request reply card amiga 2500 restoration ibm xt sn 4359455 amiga 2000 with dual drives and hd a new 68000 cpu s 100 board edmund scientific co ad 1973 micropolis 10xx drive inventory texas instruments 99 4a with php1200 mits altair 8800b t with dual drives burroughs l5000 controller card photos digital pdp 11 44 trs 80 model iii exatron stringy floppy digital pdp 9 the serious computer live long and prosper spock pdp 11 40 m7656 serial comms 1993 compaq deskpro 5 60m 1974 5 tcc 3700 i8080 computer processor tech 3p s asr 33 jumpers tektronix 4015 1 graphics terminal lear siegler adm 3a grafix board univac 1219 uss midway cv 41 commodore vic 21 prevent vms multinet smtp relay hijacks next cube restoration 1976 p c c features the mai jolt 6502 1961 beckman dextir computer univac 1 and univac file computer 1 computer music using the ibm 7094 1985 pcs limited turbo pc digital equipment corporation pdp 8 imsai 8080 chase the lights variations xybasic on the imsai 8080 cromemco dazzler cramer intel 8080a microcomputer original achtung computer lab humor leading edge computers past issues before we switched over to a blog format past page archives here vintage computer festival east 3 0 june 2006 commodore b series prototypes july 2006 volscan the first desktop computer with a gui oct 2006 robots will robots take over nov 2006 magnavox mystery a computer or jan 2007 the 1973 williams paddle ball arcade computer game feb 2007 the sperry univac 1219 military computer may 2007 vcf east 2007 pet 30th anniversary june july 2007 the electronic brain august 2007 community memory and the people s computer company october 2007 charles babbage s calculating machine december 2007 vintage computing a 1983 perspective february 2008 laptops and portables may 2008 from giant brains to hobby computers 1957 to 1977 august 2008 historic computer magazines november 2008 world s smallest electronic brain simon 1950 december 2008 feb 2009 free program listings spring 2009 computer music summer 2009 popular electronics jan feb 1975 altair 8800 fall 2009 early microcomputer mass storage summer 2010 burroughs logic module front 72477t this image was selected at random from the archive click image for more photos and files from this set site rev 3 7 1 last major website program update december 2016 latest revision september 2025 image copyright degnan co 1949 2026