Edmund Berkeley Radio-Electronics digital computer US
Simon   was a project developed by Edmund Berkeley and presented in a thirteen articles series issued in Radio-Electronics magazine, from October 1950. Although there were far more advanced machines at the time of its construction, the Simon represented the first experience of building an automatic simple digital computer, for educational purposes. In fact, its ALU had only 2 bits, and the total memory was 12 bits (2bits x6). In 1950, it was sold for US$600.
