C? Pascal, maybe, Cobol, Fortran, and even some oddballs like Forth, but C didn't catch traction until the mid-80s. I remember Chuck Sommerville (author of the original Snake Byte) and his father describing this "new language" (C) which has all the speed of assembly but is much friendlier.
Applesoft Basic and 6502 ASM (thanks to the Lazer Systems Interactive Assembler -LISA) were tops in those days.
Applesoft Basic and 6502 ASM (thanks to the Lazer Systems Interactive Assembler -LISA) were tops in those days.