CMSC 421: Midterm Exam Study Guide

The final exam will be a set of ten essay questions from the following topics where your answer will be at least one page long and you will be graded on accuracy and completeness of answer:

• Chapter 1: Operating systems
• Chapter 2: Interrupts
                  DMA
• Chapter 3: Componets of an operating system
• Chapter 4: Process management
                  Creation
                  scheduling
                  IPCs
• Chapter 5: CPU scheduling
• Chapter 6: Process Synchronization
                  Semaphores
                  Critical regions
• Chapter 7: Dead Locks
                  How is it possible?
                  How is it avoided?
• Chapter 8: Memory management
                  Logical vs Physical
                  Swapping vs Paging
                  Segmentation
• Chapter 9: Virual Memory
                  Demand paging
                  Page replacement algorithms
                  Deman Segentation
• Chapter 10: File structure
                  File Attributes
                  File Operations
                  Directories -- Organization
• Chapter 11: Allocations
                  Slide 11.13
  
• Chapter 12: Difference between block and character devices
                  Interrupt driven I/O
                  DMA