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| Test Equipment Anonymous (TEA) group therapy thread |
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| mansaxel:
--- Quote from: Vince on June 28, 2022, 08:46:55 pm --- Plus Floppies are more convenient to carry your files with you and then go to computer, or some body else's in another office, and load your files there. Portability. --- End quote --- Floppies are an electromechanical part that is unreliable. Transfering one 1.4MiB floppy worth of data over 115200 serial is going to take 102 seconds, if my maths is less broken than usual. In 1 minute 42 seconds, the "convenience" of carrying the file via sneakernet (execute copy command, unmount floppy, get to instrument, retrieve disk, move disk, insert disk, mount disk, copy files out of it) is going to be beaten. For trivial things like a file in the 10s of KiB, serial is so much faster it's silly. Besides, RS-232 is soo archaic today (except where it isn't; I use serial console at work every week, at least) that it carries its own aura de cool with it. |
| mansaxel:
--- Quote from: Zucca on June 29, 2022, 01:34:28 am ---I love my crocs --- End quote --- Are those ESD crocs? |
| bd139:
--- Quote from: med6753 on June 29, 2022, 02:53:43 am ---My mini-vacation (holiday) a few weeks ago was so enjoyable that tomorrow (Wednesday) morning I'll be heading out on another one. This one will be longer than the previous and again....the location be known only to me. ;) I probably won't be back on the blog until at least Saturday or Sunday. So obviously that will put me at least 10 pages or possibly more behind. Now I could follow the blog on my phone but I have no intention of doing so. If you are gonna get away....then get away. ;D So if there is something specific for me it will have to wait until I return or send me a PM. Does this trip involve a female? No comment. Decadent activities? No comment. Illegal activities? Why yes, at one time one was but no longer. No further clues. >:D I just know you all be jealous. :P :P :-DD --- End quote --- Sounds like my kind of holiday :-DD. Enjoy :-+ |
| mrjoda:
https://teledynelecroy.com/probes/probemodel.aspx?modelid=11667&categoryid=3&mseries=537 such a beast... now I have to convince my colleagues that we really really need it :D |
| dl6lr:
--- Quote from: mansaxel on June 29, 2022, 05:25:14 am ---Floppies are an electromechanical part that is unreliable. Transfering one 1.4MiB floppy worth of data over 115200 serial is going to take 102 seconds, if my maths is less broken than usual. In 1 minute 42 seconds, the "convenience" of carrying the file via sneakernet (execute copy command, unmount floppy, get to instrument, retrieve disk, move disk, insert disk, mount disk, copy files out of it) is going to be beaten. For trivial things like a file in the 10s of KiB, serial is so much faster it's silly. --- End quote --- The raw data rate of a 3,5" HD floppy disk is 500kbps, but it includes sector headers, checksums, gaps etc. A 1.4MiB floppy has 2.0MiB raw capacity. It rotates at 360rpm, so you could read/write in theory all 160 tracks in 28.27s (20ms stepping time, no interleave, ideally formatted), but usually you are way slower due to file system overhead and slower stepper rates. As you said: Writing and reading that amount of data including the sneakernet transport and disk changes you will have a hard time to beat the serial link. |
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