ABC

Everything should be made as simple as possible, but not simpler. 
--> Albert Einstein 

Page:
http://www.cwi.nl/cwi/projects/abc.html

                                              MacABC

VERSION - UPDATE:  1.04.01  (18-03-91)                                

README:  
"ABC is an imperative language originally designed as a replacement for BASIC: interactive, very easy to learn, but structured, high-level, and easy to use. ABC has been designed iteratively, and the present version is the 4th iteration. The previous versions were called B (not to be confused with the predecessor of C)".

AUTHORS :    
Frank van Dijk 
Leo Geurts
Timo Krijnen 
Lambert Meertens 
Steven Pemberton 
Guido van Rossum

COPYRIGHT:
(c) Stichting Mathematisch Centrum, Amsterdam, 1991

TYPE:
Freeware

INTERNET SITES:
Original site:
ftp://ftp.cwi.nl/pub/abc/
http://www.cwi.nl:80/ftp/abc/

Other sites:
ftp://ftp.funet.fi/pub/mac/programming/
ftp://ftp.funet.fi/pub/languages/abc/
ftp://ftp.sc.ehu.es/pub/mac/programming/
ftp://ftp.fu-berlin.de/mac/lang/ABC/
ftp://ftp.cs.tu-berlin.de/pub/mac/lang/ABC/
ftp://archives.math.utk.edu/software/mac/progLanguages/abc.mac/
ftp://archives.math.utk.edu/software/mac/numberTheory/abc.mac/
ftp://archives.math.utk.edu/software/mac/miscellaneous/abc.mac/