MacChoro

MacChoro II, released in 1988, was the first program to incorporate interaction in animated mapping.

MacChoro began to be developed in the Fall of 1985 on an Apple Macintosh 512K (Fat Mac) computer with a single 400K floppy drive.

The program stressed data classification, and implemented six methods including unclassed, equal interval, quantile, natural breaks, standard deviation and user-defined.

A second version of the program, MacChoro II, placed a series of maps into memory showing different methods of data classification, different number of classes, or different variables.

A dialog controlled the speed of display and provided access to the individual frames.