COMP 242 Class Notes

Handout 1: Introduction

Prasun Dewan

• Introduction
  • Resource Facilities
    • Processes
    • Resources
  • Beautification Facilities
  • What an Operating System is Not
  • Services provided by an Operating System
• Classifying Operating Systems
  • Number and Coupling among Processors
  • Support for Mobility
  • Real-time Support
  • Database Support
• Structure of an Operating System
  • Policy and Mechanism in an Operating System
  • The XINU Approach
• Machine and Run-Time Environment
• XINU Processes and Concurrency
  • Concurrent Execution of Processes
  • Shared Memory in XINU
  • Synchronization and Semaphores
  • Mutual Exclusion
• Heavyweight vs Lightweight Processes
• About this document ...