A type of magnetic tape that uses the same technology as VCR tapes. The term helical scan usually refers to 8mm tapes, although 4mm tapes (called DAT tapes) use the same technology. The 8mm helical-scan tapes have data capacities up to 40GB.
QIC and DAT Tape Technology Overview Outlines the QIC and DAT (helical-scan) tape technologies and associated standards. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."
Redwood 3D - Helical cartridge subsystem A product description, architectural review, and specifications of the Redwood 3D helical cartridge product from StorageTek Technology Corporation.