1 Introduction. - 1. 1 Wireless Technologies. - 1. 2 Wireless Architecture. - 1. 3 Applications. - 1. 4 Issues and Limitations. - 2 Software Architectures. - 2. 1 Mobile Computing Models. - 2. 2 Environmental Awareness. - 2. 3 An Example: Web Browsing. - 3 System-Level Support. - 3. 1 Disconnected Operation. - 3. 2 Weak Connectivity. - 3. 3 Mobility. - 3. 4 Failure Recovery. - 4 Information Management. - 4. 1 Broadcast. - 4. 2 Caching and Broadcast. - 4. 3 Querying Location Data. - 4. 4 Other Topics. - 5 Location Management. - 5. 1 The Location Problem. - 5. 2 Two-tier Schemes. - 5. 3 Hierarchical Schemes. - 5. 4 Evaluating Performance. - 5. 5 Concurrency and Recovery. - 6 Case Studies. - 6. 1 Rover. - 6. 2 Bayou. - 6. 3 Coda. - 6. 4 WebExpress. - 7 Conclusions. - References. Language: English