1) Computer storage company 
Dysan was a storage media manufacturing corporation, formed in 1973 in San Jose, California, by CEO and former president C. Norman Dion of San Jose, California. It was instrumental in the development of the 5.25` floppy disk, which appeared in 1976. In 1983, Jerry Pournelle reported in BYTE that a software-publisher friend of his `distributes al.....