The company turned to the task of selling the systems commercially. Atlas was named after a character in the popular comic strip "Barnaby", and they initially decided to name the commercial versions "Mabel". Jack Hill suggested "1101" instead; 1101 is the binary representation of the number 13. The ERA 1101 was publicly announced in December 1951. Atlas II, slightly modified became the ERA 1103, while a more heavily modified version with core memory and floating point math support became the UNIVAC 1103A.