 FORTH , Inc . ' s microFORTH was developed for the Intel 8080 , Motorola 6800 , and Zilog Z80 microprocessors starting in 1976 . MicroFORTH was later used by hobbyists to generate Forth systems for other architectures , such as the 6502 in 1978 . Wide dissemination finally led to standardization of the language . Common practice was codified in the de facto standards FORTH @-@ 79 and FORTH @-@ 83 in the years 1979 and 1983 , respectively . These standards were unified by ANSI in 1994 , commonly referred to as ANS Forth . 
