Turing 's design for ACE had much in common with today 's RISC architectures .
Design called for a high - speed memory of roughly the same capacity as an early Macintosh computer , which was enormous by the standards of Turing 's day .
Turing 's design for ACE had much in common with today 's RISC architectures and it called for a high - speed memory of roughly the same capacity as an early Macintosh computer , which was enormous by the standards of his day .