Information Processing Language: Difference between revisions

Revision as of 15:20, 23 August 2003

Revision as of 15:42, 23 August 2003

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IPL pioneered the concept of list processing.

The first application of IPL was to demonstrate that the theorems in ''[[Principia Mathematica]]'' which were laboriously proven by hand, by [[Bertrand Russell]] and [[Alfred North Whitehead]], could in fact be proven by computation. According to Simon's autobiography '''Models of My Life''', this first application was developed first by hand simulation, using his children as the computing elements, while writing on and holding up note cards as the registers which contained the state variables of the program.

To this day in the [[CRC method]], object-oriented programmers still use note cards to encapsulate simple attributes of the roles played by the programmed objects.