Operating systems of the 1970s handling dates beyond the year 2000

Johnny Billquist bqt at update.uu.se
Sun Jan 18 19:07:10 CST 2015

On 2015-01-19 02:04, Mark Longridge wrote:
> After trying to get Unix v5 to understand dates beyond the year 2000 I
> had to wonder if any of the older operating systems from the 1970s or
> older could do this.
> So, did any operating system programmers from this time period have
> the foresight to use 4 digits for the year? I just checked APL/360 and
> it seems that it does not.

Actually RSX internally also handles it fine, but there were bugs in 
various code that displayed dates, that assumed that the year would 
never go beyond 99. :-)


Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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