Contents: 1. Preface; 2. Introduction; 3. Information; 4. Time; 5. Time packages; 6. Space; 7. Message broadcasting networks; 8. Message switching networks; 9. Inter-networks; 10. Case study 1-Accessing the world wide web; 11. Case study 2-Controlling a manufacturing device; 12. Case study 3-Making a video telephone call; 13. Standardization; 14. Index.
