Computer Punch Cards Making a Comeback?
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IBM researchers have gone back to the pioneering days of computers
to create a novel method of storing data. A miniaturized version of
the punch cards used in some of the earliest computers has helped the
company store the equivalent of 25 million pages of text in a space
no bigger than a postage stamp. The technology, dubbed "Millipede,"
records individual bits of data using tiny heated levers to make holes
in a plastic film. The whole array of 1024 levers is only 3 mm square.
Each lever is 0.5 mm thick and 70 mm long. A complex heating and cooling
process is used to read the bits from the film.