ABSTRACT
Circulation is the oldest and best developed of all the packages offered by Geac, having begun life in 1977 in the Universities of Guelph and Waterloo. Since that date it has been subject to continuous updates and has been revised to allow for working practices in a variety of libraries, both public and academic, on both sides of the Atlantic. The package is now highly complex and each new release of sofware requires recipients to indicate their policy through a multitude of compile options; the package thereby remaining exactly the same for each site but operating in remarkably different ways. In the first edition of this book a very full description of the software release 10.2, running on 8000 machines, was offered. Since then, the software has been amended to some degree with release 10.3 in the UK, and 11.5 in North America, but beyond that developments for circulation on the 8000 appear to have ceased. It should be the job of a work such as this to describe the latest software which is release 21, running only on 9000 series machines. Whilst due to the different architecture of the c.p.u. much has changed in the way the software works inside the machine, to the user much remains the same. Rather than attempt a full description of the many functions available in Circulation here, a somewhat briefer examination of the software follows. Those readers wishing to learn more about the detail of individual commands are referred to the first edition.
