On 6/17/04 12:59 PM, Allen Watson at [EMAIL PROTECTED] wrote: > On or near 6/17/04 7:21 AM, Peter C.S. Adams at [EMAIL PROTECTED] observed: > >> Control-S used to control scrolling on terminals; it might still work in >> Terminal. But it is not blocked in in way. > > That's right! Scrolling. I had forgotten. Good to know it isn't blocked.
In the old days of in-band flow control, Ctrl-S was XOFF which meant "stop sending, my buffer is almost full". Its counterpart, XON, was Ctrl-Q which meant "resume sending". Many output devices could not always keep up with the speed at which data was sent to them (on printers, returning the carriage or form feeding took a long time relative to how long it took to send the command and of course they could run out of paper; terminals could be paused to allow the reader to take some time reading something). XOFF/XON was the receiving device's way of telling the sender to pause and resume. -- Larry Stone [EMAIL PROTECTED] http://www.stonejongleux.com/ -- To unsubscribe: <mailto:[EMAIL PROTECTED]> archives: <http://www.mail-archive.com/entourage-talk%40lists.letterrip.com/> old-archive: <http://www.mail-archive.com/entourage-talk%40lists.boingo.com/>
