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About jbdigriz

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  1. Lot of interesting TI history in Colin Hinson's article that Luke linked to in his last comment there as well.
  2. Lot of fiction more real than some versions of events 🙂
  3. Is that up to us, though? I mean, I wouldn't want to set up a public mirror or torrent if it wasn't cool. Not sure who exactly is maintaining whtech these days, even. Guidance appreciated here.
  4. Somebody should snag that. Unfortunately it won't be me right now. Maybe in a few days.
  5. @OLD CS1The trick is to get the pages to lie flat as close to the spine as possible. Can be difficult.
  6. Aha! I knew I had seen a reference to such a board somewhere. https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1654474
  7. Forgot to mention this earlier, but the documentation Richard supplied is also available on bitsavers.org now in the relevant categories, plus some that Al had on hand but hadn't gotten around to yet. TI stuff listed below. Some of the items would apply to TM990 systems as well. MPP, file io, real time executive, etc. 2021-05-11 04:13:06 ti/terminal/crt/0945423-9801_911_Video_Display_Terminal_Installation_and_Operation_197901.pdf 2021-05-11 02:02:55 ti/terminal/crt/0945424-9701_911_Depot_Maintenance_Manual_197902.pdf 2021-05-11 01:15:42 ti/990/990-12/2250690-9701A_990-10_990-12_Memories_Depot_Maint_198012.pdf 2021-05-10 23:49:04 ti/990/disk/2306140-9701B_WD800A_Installation_and_Operation_198502.pdf 2021-05-10 21:29:20 ti/990/datacomm/2263883-9701_X.21_BCAIM_Installation_and_Operation_198210.pdf 2021-05-10 04:03:26 ti/990/990-10/0945417-9701B_Model_990_10_Computer_System_Hardware_Reference_Manual_198011.pdf 2021-05-10 02:36:04 ti/990/990-10/0945402-9701A_Model_990_10_Computer_System_Field_Maintenance_Manual_198011.pdf 2021-05-09 23:20:48 ti/990/datacomm/0945407-9701_16_Input_16_Output_TTL_Data_Module_Depot_Maintenance_Manual_197608.pdf 2021-05-09 23:11:46 ti/990/datacomm/0945410-9701_Communications_Interface_Module_Depot_Maintenance_Manual_197704.pdf 2021-05-09 22:51:14 ti/990/datacomm/0945408-9701_990_TTY_EIA_Interface_Module_Depot_Maintenace_Manual_197812.pdf 2021-05-09 22:50:24 ti/explorer/999EDCA-A430_Explorer_II_System_Field_Training_Bulletin_198706.pdf 2021-05-09 21:56:37 ti/990/dx10/946289-9701_DX10_3780-2780_Emulators_Guide.pdf 2021-05-09 21:47:23 ti/990/cobol/2270521-9701C_DX10_COBOL_Programmers_Guide.pdf 2021-05-09 21:11:10 ti/990/diagnostics/945400-9701_General_Diagnostic_Information.pdf 2021-05-09 20:31:13 ti/990/diagnostics/945400-9706J_Diagnostics_for_990_Communications_Interfaces.pdf 2021-05-09 20:10:02 ti/990/datacomm/0946240-9701A_Model_990_Computer_TTY-EIA_Terminal_Interface_198012.pdf 2021-05-09 19:58:28 ti/990/dnos/2239980-9901_DNOS_Release_Update_Information_1.3.0.pdf 2021-05-09 19:55:18 ti/990/dnos/2270505-9701_DNOS_Reference_Handbook.pdf 2021-05-09 19:35:20 ti/990/dnos/2270513-9701B_DNOS_SCI_and_Utilities_Design_Document.pdf 2021-05-09 18:47:45 ti/990/dnos/2272088-9701D_DNOS_Permormance_Package_Object_Installation.pdf 2021-05-09 18:46:31 ti/990/dnos/2302607-9901T_DNOS_Release_Information_1.17.0.pdf 2021-05-09 18:45:38 ti/990/pascal/1603730-9701_TI_9900_The_Microprocessor_Pascal_System_1981.pdf 2021-05-09 18:04:36 ti/990/ampl/9900_Device_Independant_File_I-O.pdf 2021-05-09 18:02:38 ti/990/ampl/9900_The_Realtime_Executive_1981.pdf
  8. Seconded. bitsavers submission format: "The preferred form for any contributed text scan is as a collection of lossless Group 4 fax compression (ITU-T recommendation T.6) images saved as TIFF files with a minium scan resolution of 400 dpi. Lower scan resolutions produce noticable artifacts if a page needs to be straightened in post-processing. Lossy compression formats, such as JPEG, should NEVER be used to save pages of text, since the compression format destroys edge resolution and contrast would make it difficult to OCR in the future. " I believe Al is currently preferring 600 dpi or better. This allows for better OCR so docs are searchable. But check with him on before submitting, in any case. Be aware he's been on a holy tear all week scanning and postprocessing over 150 DEC manuals, so he may take a minute to get back to you. I believe archive.org actually has similar recommendations. Personally I'd submit to bitsavers first, since it is doably mirrorable, far more complete within its scope, and much easier to navigate and search. Then whtech, then archive. Archive does seed torrents, but those would mostly go away for lack of seeding if the archive itself were gone. I believe it's backed up to ipfs now, too, but I haven't checked that out. Bitsavers is not going to be interested in most of the stuff you would normally upload to whtech, but definitely compenent datasheets, databooks, and similar items. Archive.org appears to be willing to host just about anything, but how long can Brewster afford to do that, and what would happen if he were gone? Look what happened with LCM+L. I would definitely like to see whtech set up rsync and an official mirror system. Anything I can do to that end, relevant parties can let me know. I would include the library at SMU, for anything they want, but I'll wait until that becomes more clear. jbdigriz
  9. Here is one solution to that problem:
  10. Speaking of the 765 terminal, there is a decent looking one in Weatherford TX on Ebay right now. Starting bid $70, ~$20 shipping. No bids and It's been relisted once already. I'm tempted but I have too much on my plate already and can't justify the expense, so... Perhaps the seller would consider local pickup if asked, too. Those old case plastics don't always ship well.
  11. Doh. 8-slot. Boy that 1st shot of caffeine in the morning does wonder. A 99xxx-based T-bus CPU board might be an interesting project.
  12. There may be more documentation on the rather vast Siemens website eco-system for the TM990 systems. There was some ~20 years ago, anyway.
  13. There is a 7-slot TM990-520 backplane on Ebay currently. Not sure if the 518 PS is adequate for that, but there's one of them on there, too. Boards are common enough from various industrial automation houses, but usually very pricey. Stuart's boards are a good alternative.
  14. The SBP9960 is essentially a bipolar version of the TMS9901, less the interrupt controller. That functionality is available from the SBP9961 companion chip. Stuart Conner may have info on that speech board. ISTR TI sold the FPGA and Programmable Logic business to Altera, I think, sometime in the '90s, IIRC.
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