Channel and direct access device architecture
David T. Brown, R. L. Eibsen, Catharina Thörn · IBM Systems Journal · 1972
The effective use of direct access devices in System/360 was limited by channel and device architecture. Because System/370 was expected to continue with the same dependence on DASD, the problems were defined and solutions were developed. With the assistance of a simulator used during evaluation, the block multiplexer channel proposal was selected. This effort thus provided the basis of the block multiplexer channel and block multiplexing devices that are available today.