Cse 331 Lecture Slides


(d) Assure that when there are several active processes in the computer, each will get fair and non-interfering access to the central processing unit for execution



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Lecture 1 Introduction
Lecture 2 Processes

(d) Assure that when there are several active processes in the computer, each will get fair and non-interfering access to the central processing unit for execution;

(e) Take care of storage and device allocation;

Goals of an OS

  • The primary goal of an operating system is to make the computer convenient to use.
  • The secondary goal is to use the hardware in an efficient manner.

Generations of Operating Systems

  • Operating systems have been evolving over the years.
  • Research/Assignment
  • Discuss the evolution of operating systems

Types of Operating Systems

  • Modern computer operating systems may be classified into 8 groups
    • Batch Processing operating system
      • users submit jobs to a central place where these jobs are collected into a batch, and subsequently placed on an input queue at the computer where they will be run.
    • Time sharing
      • a computer provides computing services to several or many users concurrently in-line.
    • Real Time Operating System
  • Distributed Operating System
    • consists of a number of computers that are connected and managed so that they automatically share the job processing load among the constituent computers
  • Network Operating System
  • Multiprocessing System
  • Multiprogramming Operating System
  • Embedded Operating Systems

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