The Educational Computer User's Network at Battelle Columbus Laboratories is a cooperative computer center effort between a group of Ohio colleges, secondary schools, and a large research-oriented organization. This description of the program includes the historical background, program concept, data processing development, hardware and software, costs, and future plans. Program advantages are identified as cooperation among the participants, minimal costs, services rendered to the colleges, staff support, and student learning; problem areas include communications between cooperating units, uncontrolled usage, and academic/administrative imbalance. (CMV)