About
30 years later a mathematician, Ada Byron,
wrote
the first computer programs.
She based them on Jacquard's punch-card
idea.
Her
programs were for the first general - purpose
mechanical digital computer, which had just
been invented by Charles Babbage.
***
About
60 years later, an American, Herman Hollerith,
built on these three people's ideas.
He invented a machine that used punch cards
to electrically count the information collected
in the 1890 census. He was so successful
that he started a company, later called
IBM. |