Re: data cassette and robotic arms
On Wed, 10 Jan 2018, Chuck Guzis wrote: For a time, cassette decks were used as a substitute for punched paper tape in the commercial embroidery business They were supplanted by floppy drive boxes, eventually (e.g. Barudan). And paper tape is still used in that business (all kind of NC businesses). We got the request to copy a severly worn out tape some time ago, and they were very happy that we could do that with no problems :-) Christian
Generic Cassette interfaces (was: data cassette and robotic arms)
All this talk about computer cassette data got me reminiscing. Back in the late 80's and early 90's I worked programming remote Campbell Scientific data loggers for an environmental engineering group. The device could store well head data for several days and monitor 8 wells from one data logger. Field techs (like me) would go around the active sites and download the data from the units onto cassette tapes using a device like this: https://www.ebay.com/itm/Vintage-Campbell-Scientific-Inc-C20-Cassette-Interface-/391956667276?hash=item5b42701b8c Here's some technical info on the device: https://s.campbellsci.com/documents/us/product-brochures/b_c20.pdf When we got back, the data would be read from cassette into VisiCalc on the TRS-80 model IIs we used. Later I wrote a program to read the data into Microsoft multiplan running under Tandy Xenix. We'd plug the interface into a terminal aux port, open it for reading, then convert it into a SYLK layout. Were there other devices that did data transport like that. Kelly
Re: data cassette and robotic arms
On 01/10/2018 09:27 AM, David Griffith via cctalk wrote: > > This looks like fun. > > http://www.avrfreaks.net/forum/decoding-old-data-casette-format > > I'm not associated in any way with this. Most of the commercial/industrial tape cassette drives of the 70s and 80s used standard saturation recording, not audio recording. I remember a dual-deck Techtran drive that I was very fond of. It could run up to 9600 bps and do searches as well as tape-to-tape copying. I'm occasionally contacted by folks with old EDM rigs, like the Mitsubishi DWC-90H, looking for help. Those took an external cassette drive. Fortunately, there's an outfit that offers a PC-based solution to supply the tape deck functionality. For a time, cassette decks were used as a substitute for punched paper tape in the commercial embroidery business They were supplanted by floppy drive boxes, eventually (e.g. Barudan). --Chuck
data cassette and robotic arms
This looks like fun. http://www.avrfreaks.net/forum/decoding-old-data-casette-format I'm not associated in any way with this. -- David Griffith d...@661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
