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A multimedia computer system is one that can create, import, integrate, store, retrieve, edit, and delete two or more types of media materials in digital form, such as audio, image, full‐motion video, and text information. This paper surveys four possible types of multimedia computer systems: hypermedia, multimedia database, multimedia message, and virtual reality systems. The primary focus is on advanced multimedia systems development projects and theoretical efforts that suggest long‐term trends in this increasingly important area.

Social studies teachers possess a daunting task in a 21^st century environment of economic-mindedness and technological infatuation. In a setting of individualism and instant gratification, enabling a future citizenry to realize the patterns of economic disparity and to accept their responsibilities towards other less fortunate citizens provides a formidable challenge. The authors interpret understandings of citizenship as being closely related to conceptualizations of economics and view methods by which classrooms employ instructional technology as paramount to exploring these associations. This paper conveys how technology represents an instructional resource that may foster exploration and examination of these relationships and describes a student-centered cooperative instructional model for its classroom implementation.

Who works, how much one works, and what one earns are the cornerstones of labor economics. However, determining the answers to these questions can be tricky because many factors are involved in estimating labor supply, explaining the implications of labor demand, and determining the resulting earnings. This volume contains 13 chapters on these components of the labor market. Five deal directly with labor supply; four deal with labor demand, most notably the effect of cyclical demand fluctuations; and the remaining four deal with compensation, particularly wages, wage distributions, and fringe benefits.