:C0h3n - the common belief is that they were running programs on ENIAC for artillery tables. I believe Goldstein says that the project got taken over early on by the Atomic Bomb people. Your change takes away from the conflict of the table people vs the bomb people. In the second change single stepping the machine is not the same as executing the program step by step. It is a level lower. I, too, invite others to give their opinions. Don't forget to sign your comments on talk pages.