Re: On: raising the semantic level of a program

A friend kindly searched and found an interesting paper from 1973, Programming by semantic refinement JB Morris - ACM SIGPLAN Notices, 1973 - dl.acm.org. https://dl.acm.org/doi/pdf/10.1145/390014.808298 While an interesting paper, it's going the

RE: IDE Hard Drive Question

Thank you EVERYONE. Yes I confirmed that the red disc is a heater and the little device on the side is a temp sensor. All is good. I will send a new email out with some new questions but wanted to tie off this discussion with thanks to all Eugene -Original Message- From: cctalk On Be

Re: Early 3M Computer Tape Type Numbers

> On Jun 26, 2020, at 1:46 PM, Tom Gardner wrote: > > Paul > > Thanks, I had found this ad a while ago but thought it was ¼-inch. Upon > careful reading all the notes I found, "Errors per roll based on recording 7 > tracks on rolls ½" x 2500'. " > > It looks like 3M may have called their

RE: Early 3M Computer Tape Type Numbers

Paul Thanks, I had found this ad a while ago but thought it was ¼-inch. Upon careful reading all the notes I found, "Errors per roll based on recording 7 tracks on rolls ½" x 2500'. " It looks like 3M may have called their computer tapes "Instrumentation" tape until the late 60s Tom -O

A tool many of you may make find useful!

>this tool is really similar to "rdfind", which compares file sizes and >content, independently from file name, and is able to create a list of >correspondence, delete duplicate files, and create symbolic links to the >single instance. >This can work on large amounts of files, even on complex direc

Re: IDE Hard Drive Question

I'd measure the temperature sensor. It is most likely a typical thermistor but may be an RTD. Most RTD's are 100 ohm but there are some platinum on ceramic that are 1K ohms. Check it both directions with an ohm meter. It might be a solid state semiconductor type device. If a resistive device, it

Re: A tool many of you may make find useful!

Hello, this tool is really similar to "rdfind", which compares file sizes and content, independently from file name, and is able to create a list of correspondence, delete duplicate files, and create symbolic links to the single instance. This can work on large amounts of files, even on complex dir

Re: IDE Hard Drive Question

On 6/25/2020 11:20 PM, Chuck Guzis via cctech wrote: On 6/25/20 4:12 PM, Jon Elson via cctech wrote: On 06/25/2020 05:29 PM, W2HX via cctech wrote: Does ANYONE have any idea what these 4 wires are connected to and why? And anyone give any odds about whether these 4 wires will prevent this ID

Re: IDE Hard Drive Question

On 6/25/20 4:12 PM, Jon Elson via cctech wrote: > On 06/25/2020 05:29 PM, W2HX via cctech wrote: >> Does ANYONE have any idea what these 4 wires are connected to and why? >> And anyone give any odds about whether these 4 wires will prevent this >> IDE-SD converter from working? >> >> > Temperature

Re: VAX /785 docs

On 6/25/2020 7:36 PM, Al Kossow via cctalk wrote: On 6/12/20 10:45 AM, Al Kossow via cctalk wrote: On 6/12/20 9:46 AM, Noel Chiappa via cctalk wrote: /785 docs are very rare (Bitsvers only has prints) so a VAX person should grab this and then scan them. done.. though I really shouldn't be spe