This report describes the system design of a regional computer center for the libraries of New England State Universities. The function of this center is to provide library technical processing service to the participating libraries. These services will include: (1) catalog data file creation and maintenance, (2) catalog data file search and retrieval, (3) production of catalog card sets, (4) production of book labels, (5) production of book pockets, and (6) acquisitions control. The computer will be used a s a tool to provide processing services and will be a conduit for current cataloging information in machine form produced by the Library of Congress Machine-Readable Cataloging (MARC) project. Three tasks were defined which comprise the work required to implement the system: Task 1, Catalog data file creation, Task 2, Catalog data file searching, and Task 3, Acquisitions processing. The programs for these tasks and the machine configurations to run them, both in demonstration and in regional center operation, are discussed in this report. (Author/CC)