[time-nuts] Lady Heather's Leap Log

[Didier]

The reason for CR/LF is that CR takes a while on a teletype, while LF is
fast, so sending both allowed enough time for the paper/print head to be in
the right place before printing the next char. If you sent LF/CR on a
teletype instead of CR/LF, you could see right away the reason :-)

Didier

PS: while writing this, I suddenly realized that it really dates me, doesn't
it?

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Lux, James P
> Sent: Thursday, January 01, 2009 10:10 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Lady Heather's Leap Log
> 
> 
> 
> 
> On 12/31/08 6:06 PM, "Steve Rooke" <sar10538 at gmail.com> wrote:
> 
> > 2009/1/1 Mark Sims <holrum at hotmail.com>:
> >>
> >> Note that there is an error in the first column heading in Lady 
> >> Heather's Leap Log.  It says UTC...  should be GPS.  The 
> three line 
> >> hour timestamp comment is correct (UTC).  The distributed 
> version of 
> >> the program logged only time-of-week.  I added the 
> HH:MM:SS yesterday 
> >> but messed up the column header (boy is Lady Heather gonna be mad 
> >> when She finds out).  The random spacing is due to Billy Gates 
> >> Quality Control...  he still can't figure out where to put 
> CRs and LFs in an email...
> >
> > Well, POSIX decided on LF, Mac on CR and Billy Boy decided to hedge 
> > his bets with both LF and CR. It's little wonder I always 
> get a lot of 
> > double spacing here then :-)
> >
> 
> Hardly microsoft's fault. Blame the teletype. Or perhaps DEC. 
>  RT-11 stored CR/LF in files, and CP/M adopted that 
> convention, followed by DOS, etc.
> I imagine RT-11 did CR/LF because
> A) it allows use of unmodified KSR/ASR 33 TTYs without having 
> to worry if the user has the autoLF option
> B) with ink on paper, the ability to do overprints (CR w/o 
> LF) is actually useful. Them newfangled CRT based terminals 
> can't do this (except for the Tek 401x series)
> 
> 
> Jim
> 
> 
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