Invisible schrieb:
>> My uncle said that back then, they created ad-hoc, file-based database 
>> management systems by themselves.  People were much bolder back then. :)
> 
> But what did dthey *store* these files on? Punch cards?!

Exchangable hard disk drives (around since 1956)? Magnetic tape (used in 
the computing world since the 1950's, after having already seen decades 
of service for analog signal recording)?

You're underestimating the historic arsenal of data storage - and 
possibly overestimating the volume of data processed back then.

AFAIK punchcards and punch tape were used primarily for data input and 
output, not data storage (though of course they could double-feature as 
a backup of the input or output data). Data storage was instead 
typically done on magnetic tapes.

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