Jeanne Pitts wrote:
>
> Well, you would be wrong.  I worked on IBM 360's (360/95) and that is
> exactly the reason the dates were stored that way.  In fact, they were
> stored with the year and the number of days (yyddd) instead of yymmdd to
> conserve space - every byte counted.  Disk space and memory were at a
> premium and everything had to be done in the most efficient manner.  We even
> overlayed the source in the programs.  And this was in the mid to late 70's.
> As memory and disk space became cheaper so that more was available for use -
> well, it costs to rewrite all that legacy code and who was thinking of Y2K
> until it became a crisis?

Been there (IBM 360/370 assembly programming in the 1970s).  Did that (every
byte really did count).

- Mark B.