Eckert and Mauchly then teamed in developing the Electronic Numerical Integrator And Computer ( ENIAC ) , America 's first large - scale digital computer .
Among the students was John W. Mauchly .
Eckert and John W. Mauchly then teamed in developing the Electronic Numerical Integrator And Computer ( ENIAC ) , America 's first large - scale digital computer .
Among the students was John W. Mauchly .