[1][2][3][4][5][6][7][8][9][excessive citations] Now obsolete, it took input from a user and generated an executable program in the BASIC computer language.
The name derived from the idea that The Last One was the last program that would ever need writing, as it could be used to generate all subsequent software.
This was done in a logical sequence that would eventually cause a program to be generated in BASIC.
At any time, the user could elect to view a flow chart showing the current progress of the program's design.
An example of a program to sort the names in a Christmas Card list in alphabetical order: