A system has been developed to provide report quality borehole records with the aid of a microcomputer. Its aim is to provide a greater efficiency in the production of such records without jeopardizing the technical content or their reliability. The system, which consists of a suite of menu-driven programs, has been developed on a small machine which has only limited capabilities compared with many alternatives currently available. The careful development of the system has provided the facility of attaching further programs able to access the data and carry out functions which will produce further savings in the operational and business affairs of the user practice. The successful development of the system illustrates that user needs do not necessarily require equipment at the forefront of hardware development.