Irwin Magnetic Systems

The company's primary export was magnetic tape data storage and backup systems for personal computers.

[2] Called the Irwin Backup, this system made use of 3M's DC100 tape format and was primarily intended as a means of backing up data.

The Irwin was a commercial success, and the company soon inked deals with Compaq and NCR, personal computer manufacturers who resold the drives as value-adds for their machines.

[3]: 31  A few years later, Irwin introduced the AccuTrak, based on the then-common DC2000 tape cartridge format and featuring a proprietary embedded servo to increase data density.

Initially sold exclusively for Macintosh computers,[4][5] Irwin eventually released it for IBM PCs and compatibles, earning design wins from PC manufactures such as Compaq, Hewlett-Packard, and IBM,[1] the latter of which sold them as an optional for their Personal System/2 (PS/2) line of PCs.