Correct Option: C

The UNIVAC computer was the first commercially available computer invented by John Presper Eckert and John Mauchly. As well as being the first American commercial computer, the UNIVAC I was the first American computer designed at the outset for business and administrative use (i.e., for the fast execution of large numbers of relatively simple arithmetic and data transport operations, as opposed to the complex numerical calculations required by scientific computers). As such the UNIVAC competed directly against punch-card machines (mainly made by IBM).