Development subsidiary in 1983. Plus Development invested their efforts in developing a hard disk drive that the average computer owner could install easily without much technical knowledge.

By 1985, Plus Development had engineered their first Hardcard; it had a 10 megabyte (MB) capacity; its suggested retail price was $1,095. In the mid-1980s, hard drives were as small as 1.6 inches tall, but in order to fit into a single ISA