In 1954, the IBM 704 computer represented the state of the art with an
add time of 36 mu s. Now we have add times of a few nanoseconds, repr
esenting a speeding by a factor of approximately 10 000. One may get a
n idea of what this means by noting that an algorithm which once took
ten minutes can now be done 15 times per second. As a result, industri
al applications can now be based on algorithms that were once of acade
mic interest only-an achievement of vital significance in subjects suc
h as pattern recognition.