Answer: The Atanasoff–Berry computer was the first automatic electronic digital computer. Limited by the technology of the day, and execution, the device has remained somewhat obscure. The ABC's priority is debated among historians of computer technology, because it was neither programmable, nor Turing-complete.
Explanation: Because fast-tracking doesn’t involve additional resources, it’s usually best to start with this technique while Crashing requires careful planning to prevent “panic mode” among the project crews and to avoid acceleration claims.
