Computer Science 330
Operating Systems
Fall 2025, Siena University
Lecture 0x0e: Memory Management; More Unix Systems Programming
Date: Monday, November 3, 2025
Agenda
- Announcements
- The next readings/activities from OS zyBook
- Chapter 16, Sections 1-3, due Friday, November 7
- Chapter 16, Sections 4-5, due Monday, November 10
- Lab 6: Unix Systems Programming [HTML] [PDF] due today
- Programming Project 4: Basic Shell [HTML] [PDF] repositories should
be created and groups formed
- Exam 2 is in 2 weeks, more info to come on Friday
- Memory management: segmentation and paging
- A bit more about TLBs
- locality
- Looking at the exercises from OS zyBook Chapter 14, Section 4
- 14.4.1, 14.4.2, 14.4.3, 14.4.5, 14.4.5
- Programming Project 5: Roger Bacon Shell with Pipes and Redirection [HTML] [PDF] introduction
- Lab 7: Interprocess Communication [HTML] [PDF] (do this before starting the new project)
Terminology
- segmentation
- segment
- segment table
- translation lookaside buffer
- principle of locality
- TLB hit ratio