August 1981 - Vol. 24 No. 8
Features
The factors underlying system design for usability are examined and the role and responsibilities of a usability committee described. Under the control of a usability…
Mxec: parallel processing with an advanced macro facility
Mxec is a sophisticated computing environment (executive system) which extends and magnifies users' interactions with a computer. Principally, Mxec provides for parallel…
Psychology of calculator languages: a framework for describing differences in users' knowledge
This paper presents a framework for describing users' knowledge of how a simple four-function calculator operates. Differences among novices and experts in their…
Long term file migration: development and evaluation of algorithms
The steady increase in the power and complexity of modern computer systems has encouraged the implementation of automatic file migration systems which move files…
Timestamps in key distribution protocols
The distribution of keys in a computer network using single key or public key encryption is discussed. We consider the possibility that communication keys may be…