Personal Dynamic Media
Published in 1977 by Alan Kay and Adele Goldberg in IEEE Computer, this paper describes the Dynabook concept and the Smalltalk programming environment developed at Xerox PARC. Its central idea is “symmetric authoring and consuming”: every user should be able to shape their own tools, not just use pre-built applications. Kay and Goldberg envisioned a portable personal computer as a dynamic medium for creative thought, learning, and simulation. The paper demonstrated children and adults creating their own programs in Smalltalk. It laid the intellectual foundation for modern laptops, tablets, and the broader vision of end-user programming that still drives software innovation today.