Volume 25, Number 1, January 1981
Volume 25, Numbers 2-3, May 1981
Volume 25, Number 4, July 1981
Volume 25, Number 5, September 1981 System Architecture and Development
Samuel E. James
: Evolution of Real-Time Computer Systems for Mannet Spaceflight.
Magnetic Recording Technology
IBM Scientific Contributions
Jean E. Sammet
: History of IBM's Technical Contributions to High Level Programming Languages.
: Formal Semantics of Programming Languages: VDL.
Volume 25, Number 6, November 1981
: Design of Experiments in Computer Performance Evaluation.
Charles H. Sauer
: Approximate Solution of Queueing Networks with Simultaneous Resource Possession.
Seraphin B. Calo
: Delay Analysis of a Two-Queue, Nonuniform Message Channel.