Front Cover; Advances in Computers, Volume 12; Copyright Page; Contents; Contributors; Preface; Chapter 1. Information Security in a Multi-User Computer Environment; 1. The Computer Security Problem; 2. Techniques of System Access Control; 3. Computer Characteristics Supporting Information Security; 4. Operating System Functions Relating to Information Security; 5. Problems of File Protection; 6. Techniques of File Protection; 7. Techniques of Security Assurance; 8. Communications Problems; 9. Summary; References; Chapter 2. Managers, Deterministic Models, and Computers; 1. Introduction.

2. The System Approach3. Management Systems; 4. Management Science; 5. When and How Managers Have to Implement Management Science Models; 6. Will Computers Eliminate Managerial Decision Making?; References; Chapter 3. Uses of the Computer in Music Composition and Research; 1. Introduction; 2. Composition of Music by Computer; 3. Music Research Using the Computer; 4. Automated Music Typography for Composition and Research; References; Chapter 4. File Organization Techniques; 1. Introduction; 2. Survey of File Organizations; 3. Random File Structures; 4. List File Structures.

5. Tree File Structure6. Implementation of File Structures; References; Chapter 5. Systems Programming Languages; 1. Introduction; 2. Criteria for a Systems Programming Language; 3. Specific Constructs; 4. Reviews of Several Systems Programming Languages; 5. Extensibility and Systems Programming; 6. Language for Systems Development; References; Chapter 6. Parametric and Nonparametric Recognition by Computer: An Application to Leukocyte Image Processing; 1. Introduction; 2. Image Articulation; 3. Image Description; 4. Discrimination: Logic and Rationale.

5. Linear Logic and the Evaluation of Performance: Logic and Rationale6. Feature Selection: Logic and Rationale; 7. Experimental Results: Parameter Variability; 8. Experimental Results: Parametric Discrimination using Decision Theory; 9. Nonparametric Pattern Detection : A Cytotaxonomy for Leukocytes; 10. The Inverse Problem: Human Visual Discrimination Using Computer-Oriented Image Properties; 11. Perspectives on Automatic Microimage Analysis; 12. Summary and Prospectus; References; Author Index; Subject Index; Contents of Previous Volumes.