text: John Graham-Cumming's Plan 28 is a modern-day effort to build an early version of these machines described in paper by Luigi Manabrea.
full_question: John Graham-Cumming's Plan 28 is a modern-day effort to build an early version of these machines described in paper by Luigi Manabrea. The court case Honeywell v. Sperry Rand determined that John Atanasoff, rather than Mauchly and Eckert, designed the first version of these machines. Early versions of these machines, such as ENIAC, used ring counters made of vacuum tubes to store numbers. For 10 points, name these machines that can be used to run programs.
first_sentence: John Graham-Cumming's Plan 28 is a modern-day effort to build an early version of these machines described in paper by Luigi Manabrea.