Issue No.04 - April (1976 vol.9)
D.A. Michalopoulos , California State University
The Model 121 "Naked" Floppy Disk Controller is a multipurpose, multi-drive floppy disk memory device aimed at both microprocessor and minicomputer applications. According to the manufacturer, the unit is compatible with DMA channels as well as programmed I/O channels, interfaces with most minicomputers and microprocessors, and can be made software-compatible with existing disk systems.
D.A. Michalopoulos, "New Products", Computer, vol.9, no. 4, pp. 56-60, April 1976, doi:10.1109/C-M.1976.218562