Harsha Assign _OS

Harsha Assign _OS - Computer and Network Engineering...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Computer and Network Engineering Lecturer : Prof. Marcos Rodrigues Operating systems Assignment: Operating System Analysis Date of Submission: 9 th January 2009 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Submitted By: NUTUKURTHI SRIHARSHA (18028918) Operating System Analysis Introduction: Like all the operating systems nachos supports most of the basic functionalities  of   the   operating   system,   and   was   developed   in   a   simple   object   oriented  programming language (C++). The following are the functionalities supported by  the operating system: Multi threading Multi processing File system Virtual memory Network Before we move on to these topics let us first analyze the directory structure of  the operating system. Directory Structure: 2
Background image of page 2
Here is the complete directory structure for the Nachos operating system. The following is the brief description on each of the directories available: Bin: - contains the  executable  (i.e., ready to run) programs that must be available  in order to attain minimal functionality for the purposes of  booting  (i.e., starting)  and repairing a system. Lib: - This directory contains libraries that are used by various programs and  languages. Machine: - this directory encapsulates the files required by the operating system  to perform I/O and manage interrupts. File system: - the files in this directory help the operating system to keep track of  all the directories and files created by the users/processes. Network: - this directory contains the files that are used for the purpose of  networking i.e files related to sending messages via network or files which are  used to identify the system in the network. Ports: - this directory has the files which helps the users to install any new  applications on the operating system. Threads: - this directory contains the files which help the operating system in  performing multitasking and processing. User programs: - this directory encapsulates the files which helps the operating  system to identify and keep track of the user programs executing. bin lib machin filesys network ports thread s userpr ogs test 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Test: - this directory contains the simple test programs which can be executed on  a Nachos operation system. Support for Multi Threading:   All the operating systems emerging these days are capable of multi processing.  The best way to attain this is using the concepts of multi threading. Nachos have  the capability of multi threading. The “threads” directory which is present in the  root directory of the Nachos encapsulates the files which are used to support  multi   threading.   Nachos’   implements   some   of   the   functionalities   of   the 
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/22/2011 for the course CS 541 taught by Professor Dr.marcosrodrigues during the Spring '09 term at SUNY Buffalo.

Page1 / 14

Harsha Assign _OS - Computer and Network Engineering...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online