On Fri, May 29, 2009 at 12:26 PM, Michael Chaney <[email protected] > wrote:
> > On Fri, May 29, 2009 at 8:17 AM, Andrew Farnsworth <[email protected]> > wrote: > > Ahh... 1200 Baud... back when I first thought "Wow, this is scrolling by > > almost faster than I can read it!" > > > > I just acquired that warm nostalgic feeling. > > Wasn't 1200 Baud where we first had error correction? I still > remember dialing in at 300 Baud and having to deal with bad > characters. I even remember dropping to 110 to get a more reliable > connection. At the time, we had to use Kermit for file transfer > because it had built-in error correction. Michael, Yes, I think 1200 baud first introduced error correction in the modem to modem communication stream rather than at the software level. Interestingly enough, at least until recently and probably still today, most Credit Card machines would connect at 1200 baud. The reason behind this was that a 1200 baud connection entailed no negotiation of speeds, it was just handshake and handshake back and you are connected. That along with the very small amount of data being sent back and forth combined with the fact that 1200 baud can withstand some very noisy phone lines makes it ideal for this application. I believe that many of the stand alone ATMs also use / used 1200 baud. Andy --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
