Re: HP 85 tapes

2019-02-28 Thread Martin Hepperle via cctalk
Christian, there is the document "9915-TapeDuplicationAndEPROMProgrammingSoftware-09915-10011-46pages-Jul83.p df" on the HP-.Museum web site. I think the associated software is not available, but it also uses the TAPDUP binary (pg. 1-2) and the same IMAGE program. The binary itself was part of th

Re: HP 85 tapes

2019-02-27 Thread Martin Hepperle via cctalk
Christian, the TAPDUP binary and associated utility programs in BASIC was used to create EPROMs with programs and data for the 9915 Series-80 box. It can be used to read the directory record and then to read tokenized PROGrams as data on a file-record base - not at low record level. The package a

Re: AlphaWindows - Protocol Information?

2018-09-12 Thread Martin Hepperle via cctalk
Brian, thank you very much for the scans. The scan is very nice and the document looks very interesting. I would like to make some experiments to learn how the system works, but first I have to obtain the missing keyboard for my HP 700 terminal. Just replaced the line filter capacitors to avoid t

AlphaWindows - Protocol Information?

2018-09-05 Thread Martin Hepperle via cctalk
In the 1990s a computer terminal standard "AlphaWindows" was proposed by the Display Industry Association (DIA). Sort of X-Windows for the poor. A few terminals appeared which supported multiple text windows following the this standard. Some limited global facts can be found in Wikipedia. I learne

RE: Microsoft DOS Fortran 5.1 graphics

2018-08-30 Thread Martin Hepperle via cctalk
> I am looking for a sort of 'hello world' example and/or samples to use the > graphics library in this compiler, some sample code. My target is DOS and > the Compaq luggable mono display. > > > It looks like its all there, the library and include files for display adapters and > modes, but I ca

Texas Instruments Silent 703/707 print head anyone?

2018-03-12 Thread Martin Hepperle via cctalk
Hi, last weekend I cleaned and restored a TI Silent 703 printing terminal. A rather common type with its whopping 300 baud transfer rate - nevertheless a piece of history. It was easy to fix a broken trace on the keyboard PCB (corrosion) and to roughen the idler roller for better grip on the pape

Re: Line printer art: (was Re: tape baking)

2017-07-10 Thread Martin Hepperle via cctalk
For those interested in viewing those line printer files but without a suitable printer I have hacked together a small Java program for viewing and exporting the files. Nothing great, but it does the job. Try SMALLCAT first. I understood that the first column contains FORTRANish line advance char