This article examines issues of implementing nursing information computer systems in 17 hospitals in New Jersey and the initial effects of such systems as perceived by users. Unlike previous studies that examined the effects of one system in one hospital, this study examines the effects of several major systems in a variety of settings.Many of the hospitals experienced major delays or other problems with implementation; the hospitals in which timely implementation occurred were the ones that had purchased a commercially available standalone nursing system and did not try to develop interfaces or do extensive development. While these hospitals did meet with difficulties and needed some software customization, the problems were not so severe as to impede timely implementation. On the other hand, most of the hospitals that had major delays had planned more ambitious projects. These hospitals either required development work with vendors or were implementing a nursing information system while simultaneously putting in place a hospital system. Initial staff impressions of the effects of the system were positive; nursing department staffs reported that they liked the nursing systems. They said that documentation was better [more readable, complete, and timely] and they also believed that care was improved because the computer prompted nurses on what to look for and what to do. Support for these systems from hospital administration, outside of nursing, was cautious and based primarily on cost/benefit results.