Re: Origin Of Filename Extension Dot Separator

On 25/08/2026 1:15 AM, Mr. Chang Man-wai wrote:
> On 8/24/2026 2:20 AM, Lars Poulsen wrote:
>>
>> In Unix/Linux filesystems, that is so. But before that became
>> ubiquitous, the parts of the filesystem were separate fixed-length
>> fields in the file directory entries, and the separators were not in the
>> file directory, but were added as syntactic sweeteners in the command
>> language and the display routines.
> 
> 
> In typical letters management (talking about
> physical letters, paper ones), how would you
> assign a name to a letter? Is there a file
> extension kind of thing?
> 

This one is easy.  You put the letter in an envelope, then put a name
one the envelope.  Then you put the same name on a credit card sized
/index card/, and put the index card in the drawer that has the same
first letter as the name you put on the envelope in the first place.

This is called /library magick/, and has typically not been used since
the 1970s, so I've added alt.magick to the conversation.

For further reference, please consult your nearest non-computer indexed
physical library.  Finding one in 2026 is the purview of alt.magick.


Happy reading library books!
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