Conclusions After Using the PACT I Advanced Coding Technique

Least squares fitting of a great circle through points on a sphere

“…However, as other one-many compiler programmers have reported [7], the greater ease and speed of coding and debugging, with their corresponding decreases in programming time, more than compensate for any inefficiency in the generated code for a wide range of problems. Additionally, there is the fact that human failings will often cause large programs th'~t are ended with assembly methods to be longer than the compiled versions, in part because of the greater ease of making both major and minor program changes in the latter.…”

The History of Language Processor Technology in IBM

“…A compiling system, PACT I [14][15][16][17][18][19][20] for the 701 (and PACT lA [21] for the 704), emphasizing storage optimization, was started in late 1954 by a committee of IBM employees and customers. The compiler automatically allocated primary storage in regions for programs and data.…”