John W. Irwin
IBM
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by John W. Irwin.
Ibm Journal of Research and Development | 1971
John W. Irwin; John V. Cassie; Harlyn C. Oppeboen
The design innovations in the IBM 3803 Tape Control Unit and the IBM 3420 Magnetic Tape Unit are discussed. The new design concepts include a full readback parity check, a system of microprogram control that obtains high operating rates through overlap of channel control and motion control functions, a new phase-error detection system, a modified dual-density recording feature and a new interface between the control unit and tape drive. The combination of novel error detection methods, control features and programming support (including an expanded scheme of on-line diagnostics) contributes to greatly improved total system performance over previous models of tape subsystems.
Archive | 1984
John W. Irwin
Archive | 1985
John W. Irwin
Archive | 1987
John W. Irwin
Archive | 1972
Ernest William Devore; John W. Irwin
Archive | 1987
Patrick Allen Buckland; John W. Irwin; Jack Erwin Reeder
Archive | 1971
Gene H. Edstrom; Russell Merritt Elwell; John W. Irwin
Archive | 1971
Gene H. Edstrom; John W. Irwin
Archive | 1979
John W. Irwin
Archive | 1987
Richard G. Fogg; John W. Irwin