Thus there are four language "levels" in the chess program: #JOHNNIAC machine code, general #IPL, basic #chess vocabulary, and finally the chess program itself. (a n) #DSL
The estimated time per move, as shown in the table, is from one to ten hours, altough moves in very placid situations like the opening will only take a few minutes. (a n)
The interpreter that will transform the machine into an adequate student for a human instructor will not be a passive, algorithmic translator - as even the most advanced interpreters and compilers are today - but an active, complex, heuristic problem-solving program. (a n)