Università telematica internazionale UNINETTUNO

Information and communication technologies engineering (Academic Year 2018/2019) - Ingegneria Informatica

Operating Systems


Slides

Lesson n. 1: Operating systems overview - part I
   Operating Systems (O.S.) Overview - Part I

   O.S. Functions

   The Evolution of O.S.: Uniprogrammed Batch System (Monitor)

   The Evolution of O.S.: Multiprogrammed Batch System

   The Evolution of O.S Time-Sharing System

   The concept of overhead
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Lesson n. 2: Operating systems overview - part I I
   Operating Systems (O.S.) Overview - Part II

   O.S. Classification: Batch, Interactive, Embedded, PC, PDA Systems

   O.S. Classification: Real Time System

   Transactions

   O.S. Classification: Distributed System
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Lesson n. 3: Basic hardware elementes
   Basic Hardware Elements - Interrupt Mechanism

   Interruption Processing

   O.S. Components

   System Calls

   User mode and Supervisor (kernel) mode
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Lesson n. 4: Process management - part I
   Process Management - Parte I

   Process Definition

   Process States

   Process Description

   States of a Unix Process
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Lesson n. 5: Process management - part II
   Process Management - Part II

   Context Switch

   Scheduling

   Operations on processes - Process Creation

   Operations on processes - Process Termination

   Short Term Scheduling (Unix solution)
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Lesson n. 6: Process management - part III
   Process Management - Parte III

   Threads

   User-level and Kernel-level Threads

   Process Interaction - mutual exclusion, communication and synchronization

   Process Interaction Models
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Lesson n. 7: Syncronization mechanisms - part I
   Synchronization Mechanisms - Part I: Mutual Exclusion problem

   Mutual exclusion with TSL (Test and Set Lock)

   Mutual exclusion with Semaphors
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Lesson n. 8: Syncronization mechanisms - part II
   Synchronization Mechanisms - Part II: Producer-Consumer with Semaphors

   Message Passing Model

   Synchronization in message passing model

   Kernel of a Process System
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Lesson n. 9: Deadlock
   Deadlock - Arguments

   Principles of deadlock

   Conditions for deadlock

   Deadlock Prevention

   Deadlock Dynamic Prevention - Banker's algorithm

   Deadlock Detection
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Lesson n. 10: Pthreads and java - part I
   Pthreads and Java - Part I

   Threads Definition

   Example of a thread creation using pthread

   Threads Synchronization
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Lesson n. 11: Pthreads and java - part II
   Pthreads and Java - Part II

   Pthreads synchronization - produce-consumer example

   Pthreads synchronization - produce-consumer example with mutex

   Pthreads synchronization - semaphors

   Java Thread Definition
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Lesson n. 12: Pthreads and java - part III
   Pthreads and Java - Part III: Java thread synchronization

   Pthreads and Java - Object Lock Mechanism

   Pthreads and Java - Wait-notify Mechanism

   Example using wait and notify primitives
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Lesson n. 13: Introduction to memory management
   Introduction to Memory Management - Topics

   Resource Allocation Techniques

   Similarities between CPU and Memory Management

   Differences between CPU and Memory Management
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Lesson n. 14: Virtual memory
   Virtual Memory - Topics

   Virtual Memory Definition

   Address Relocation

   Virtual Memory Organization
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Lesson n. 15: Classification of memory management techniques
   Classification of Memory Management Techniques - Topics

   Classification criteria: Virtual Memory Organization

   Classification criteria: Memory Allocation

   Classification Criteria: Virtual Memory Dimension

   Memory Management Techniques (summary of classification criteria)

   Memory Partitioning
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Lesson n. 16: Segmentation
   Segmentation - Topics

   Placement Algorithms

   Multiple Partitions

   Simple Segmentation

   Simple Segmentation: segmented virtual space
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Lesson n. 17: Segmentation on demand
   Demand Segmentation - Topics

   Simple Segmentation: TLB (Translation Lookaside Buffer)

   Simple Segmentation: Protection and Sharing

   Simple Segmentation: Pros and Cons

   Demand Segmentation
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Lesson n. 18: Paging
   Paging - Topics

   Simple Paging

   Address Translation Mechanism
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Lesson n. 19: Demand paging
   Demand Paging - Topics

   Demand Paging

   Address Translation Mechanism

   Replacement Algorithms
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Lesson n. 20: Segmentation with paging
   Segmentation with Paging - Topics

   Replacement Algorithms (cont.)

   Trashing and Working Set in Demand Paging

   Two-level Paging

   Segmentation with Paging
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Lesson n. 21: I/o subsystem: introduction
   I/O Subsystem: Introduction - Topics

   Goals of the I/O subsystem

   I/O Hardware, I/O Devices and Error Handling

   I/O Buffering and I/O Scheduling

   I/O subsystem Architecture
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Lesson n. 22: I/o subsystem: device drivers
   I/O subsystem: Device Drivers - Topics

   Principles of I/O Hardware

   Principles of I/O Hardware: Interrupt-driven I/O

   Device Drivers
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Lesson n. 23: I/o subsystem: conclusions
   I/O Subsystem: Conclusions - Topics

   Direct Memory Access(DMA)

   Logical Structure of the I/O Function

   Disk Scheduling: Disk Structure

   Disk Scheduling: Scheduling Algorithms
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Lesson n. 24: File system: introduction
   File System: Introduction - Topics

   Disk Scheduling: SCAN and LOOK algorithms

   The Concept of File

   File Operations

   File Structure and Access Methods
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Lesson n. 25: File system: implementation
   File System Implementation - Topics

   File System Organization: Virtual Disk and Directory Implementation

   File System Organization: Directory Structure and Operations

   File System Organization: File Access

   Allocation method
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