Display Space-Time Resource Diagrams

Cognitive tasks of any complexity are accomplished with the aid of resources outside the head. This is evident for a task as simple as arithmetic, which is quicker and more accurately done with paper and pencil than mentally for most people (unless special methods are learned). Modern windows-based humancomputer interfaces are based on the use of a computer-controlled display surface to effectively expand user’s working memory and to shift object and command specification from recall memory to recognition memory.