An informal graphics system based on the LOGO language

This paper describes an attempt to create an informal graphics system: a system simple, flexible and inexpensive enough to be used by non-professional programmers for day-to-day problems. Informal computer systems of a nongraphical nature, most of them based on the APL or BASIC languages or on the RAND Corporation's JOSS system, are now quite commonplace. They are invaluable for teaching programming and for use by 'occasional' programmers in research and industry. In the future, as graphics equipment costs fall, the use of informal graphics systems is likely to become increasingly widespread.