I've collected several of the Old Percom advertisements from various magazines. Click the link to view the ads.

BYTE Magazine March 1976. Articles by Jack Hemenway, Don Lancaster and Harold Mauch show examples of the Kansas City Standard for data recorded on audio cassettes.

CIS-30 Kilobaud 1979

CIS 30

Richard Benjamin models the Speak-2-me-2

Disk Drives

Access Unlimited 1980

Doubler Flyer