Table of Contents Introduction Overview of System Calls Importance of Distinguishing Fast vs. Slow System Calls Core Definitions: Fast vs. Slow System Calls Fast System Calls Slow System Calls The Signal Interaction Mechanism How Signals Work with Blocked System Calls Example Scenario Code Demonstration Practical Example: read() with Signal Handling How to Compile and Run the Code Expected Output and Explanation Gray Areas: The Case of Disk I/O Disk I/O as a Gray Area Practical Example: Disk Rea...