...UNIX®/Linux® versus Mac® versus Windows® POS/355 October 29, 2012 Carol S. Eichling UNIX®/Linux® versus Mac® versus Windows® There are several computer operating systems available on the market, and it is sometimes difficult to choose. Therefore, it is important to compare the system capabilities to make the decision easier. The three biggest players in the operating systems market are UNIX®/Linux®, Mac®, and Microsoft® Windows® with Windows® holding the largest market share (Boitor & Brătucu, 2011). These three operating systems are capable of multi-processing and have similar capabilities; however, and it is important to compare and contrast how they handle memory management, process management, file management, and security, which are critical system functions. Discussing memory management, which is a vital component in operating systems, is first. Memory Management Memory management refers to the way a system makes use of the computer’s RAM (Random Access Memory). Many of the operating systems in use on computer systems have positives and negatives in their use of memory attributes. “Memory management is usually divided into three areas: hardware, operating system, and application…although the distinctions are a little fuzzy. In most computer systems, all three are present to some extent, forming layers between the user's program and the actual memory hardware” (Ravenbrook Limited, 2001, p. 1). There are several types of memory, including main memory, file system...
Words: 2974 - Pages: 12
...DETAILED SYLLABUS POST GRADUATE DIPLOMA IN COMPUTER APPLICATIONS (PGDCA) (EFFECTIVE FROM JULY 2011) Department of Computer Applications Makhanlal Chaturvedi Rashtriya Patrakarita Evam Sanchar Vishwavidyalaya B-38, Press Complex, M.P. Nagar, Zone-I, Bhopal Ph.: 4294448, 2768274 www.mcu.ac.in SCHEME FOR POST GRADUATE DIPLOMA IN COMPUTER APPLICATIONS (PGDCA) (Effective From July 2011 Session) SEMESTER -I Subject Code Subject Name Scheme L 1PGDCA1 1PGDCA2 1PGDCA3 1PGDCA4(A) 1PGDCA4(B) Fundamentals of Computers & Information Technology Introduction to Operating Systems (Dos, Windows, Linux) PC Packages Elective - 1 Foxpro MS-Access 4 4 1 3 T P Theory Paper 80 80 Internal Evaluation 20 20 Practical Exams Total Marks 100 100 4 4 1 3 3 80 80 20 20 25 25 125 125 Semester Total 450 (*L-Lecture, T-Tutorial, P-Practical) SEMESTER –II Subject Code Subject Name Scheme L 2PGDCA1 2PGDCA2 2PGDCA3 2PGDCA4(A) 2PGDCA4(B) 2PGDCA5 System Analysis and Design Programming with Visual Basic.NET Internet & E-Commerce Elective - 2 OOPs & Programming with C++ Financial Accounting with Tally Project Work 4 4 4 4 T 1 P 3 3 3 Theory Paper 80 80 80 80 Internal Evaluation 20 20 20 20 Practical Exams Total Marks 100 125 100 125 25 1 25 4 100 Semester Total 550 General Instructions: 1. For passing the subject examination minimum 40% marks must be separately scored in Theory Paper, Practical Exams and Internal Evaluation in the subject. 2. For...
Words: 4021 - Pages: 17
...Linux Memory Management: Its similarities and difference with Windows’ Memory Management specifically in Page swapping algorithms Abstract Memory management in all the operating system is important because it is crucial for both programming and system administration. In order to make the system faster is that to use an algorithm that saves the time for managing processes and jobs. The article stated the brief discussion on how the Linux memory management works and thus it states that it works almost the same as what the Windows operating system with 32-bit and 64-bit is using. All i/o Linux goes through the page cache and area that caches to improve disk i/o performance same as with the one used in Windows’ cache and Virtual Memory. The paper discussed the difference and similarities of Windows’ memory management and Linux’s Memory Management. It concludes that Linux’s memory management is simpler and easier to maintain compared to Windows’ though, thus Window’s memory management favors the performance and Linux’s having its operating system open sourced, needs improvement through some researches and open sourced programmers. Keywords: Linux, Unix, Page Swapping, Windows, Memory, Virtual Memory, Paging, Placement Policy, Least Recently Used (LRU), Not Recently Used (NRU) Linux Memory Management: Its similarities and difference with Windows’ Memory Management specifically in Page swapping algorithms Operating systems is the heart of all computers may it be...
Words: 1371 - Pages: 6
...◆ 3D Rendering in the Cloud ˇ c Martin D. Carroll, Ilija Hadzi´ , and William A. Katsak Many modern applications and window systems perform three-dimensional (3D) rendering. For a cloud system to support such applications, that 3D rendering must be performed in the cloud, because the end-user equipment cannot be relied upon to contain the necessary rendering hardware. All systems that perform 3D rendering in the cloud are faced with two fundamental and related problems: 1) How to enable an arbitrary number of users to produce rendered pixel streams, and 2) how to transfer those pixel streams out of the server’s frame buffers and into one or more encoders, for transmission to the user. We have implemented a new form of display virtualization that solves both of these problems in a low-level and transparent manner. Using our display virtualization (which we call the virtual cathode ray tube controller (VCRTC)), the cloud system can support an arbitrary number of pixel streams (bounded only by memory and bandwidth resources), and it can dynamically associate those streams with encoders. VCRTCs are completely transparent to the applications: No application needs to be modified, recompiled, or even relinked to use VCRTCs. Because they are low-level and transparent, VCRTCs are also a general mechanism with utility beyond cloud systems. © 2012 Alcatel-Lucent. Introduction Three-dimensional rendering is the process of transforming a model of a three-dimensional (3D) scene...
Words: 7263 - Pages: 30
...Assessment 3 Course Name | Managing Network Operating Systems | Credits | 15 | Code | NW701 | Level | 7 | Id | | Name | | Date | | Signature | | Aims: 1. To equip students with the skills necessary to enable them to manage network operating systems. Date | 6/08/2014 | Time | 9:30 | Learning Outcomes | 1, 2,3 | Assessment Weightings: | 100 Marks in total converted to 40% of final grade | Conditions: | In class individual test. Closed book. Practical task in laboratory conditions, and presentation | Time Allowed: | 1 Hours (practical not included) (plus 15-30 minutes practical time for each student) | Learning Outcomes Assessed: Learning outcomes assessed | Questions | Marks | Assessment Weighting % | 2 | Perform and evaluate tasks that will deploy and configure a network operating system | Task1 Task 2Task 3 | 30 2020 | 50% | 4 | Evaluate how a networking operating system uses the OSI model | Task 1 | 30 | 20% | 5 | Compare and contrast two network operating systems | Task 4 | 30 | 30% | Task Number | Marks allocated | Marks obtained | 1 | 30 | | 2 | 20 | | 3 | 20 | | 4 | 30 | | Total Marks | 100 | | Instructions: 1. You should attempt ALL the questions in this test. 2. Check all the tasks in the assessment 3. Task One is an individual project. 4. Task Two ,Three and Four are practical tasks 5. Read instructions carefully. 6. Write your full name and student...
Words: 1296 - Pages: 6
...Interior Design: Octopod Studios Developmental Editor: William Pollock Technical Reviewer: Jason Oliver Copyeditor: Pamela Hunt Compositor: Susan Glinert Stevens Proofreader: James Fraleigh Indexer: Nancy Guenther For information on distribution, translations, or bulk sales, please contact No Starch Press, Inc. directly: No Starch Press, Inc. 245 8th Street, San Francisco, CA 94103 phone: 415.863.9900; fax: 415.863.9950; info@nostarch.com; www.nostarch.com Library of Congress Cataloging-in-Publication Data Weidman, Georgia. Penetration testing : a hands-on introduction to hacking / Georgia Weidman. pages cm Includes index. ISBN 978-1-59327-564-8 (paperback) -- ISBN 1-59327-564-1 (paperback) 1. Penetration testing (Computer security) 2. Kali Linux. 3. Computer hackers. QA76.9.A25W4258 2014 005.8'092--dc23 2014001066 I. Title. No Starch Press and the No Starch Press logo are registered trademarks of No Starch Press, Inc. Other product and company names mentioned herein may be the trademarks of their respective owners. Rather than use a trademark symbol with every occurrence of a trademarked name, we are using the names only in an editorial fashion and to the benefit of the trademark owner, with no...
Words: 117203 - Pages: 469
...CIS 206 All iLabs: Devry University (DEVRY) For more course tutorials visit www.tutorialrank.com CIS 206 All iLabs: Devry University ----------------------------------------------------------- CIS 206 Case Study 2-3 Discussing the Functions of an Operating System (DEVRY) For more course tutorials visit www.tutorialrank.com You have been selected to present a short talk on the functions of an operating system for the weekly tech meeting. To support your talk, you must prepare a handout for the attendees. The handout should summarize the information that you have learned about this topic. ----------------------------------------------------------- CIS 206 Case Study 2-4 Discussing How Applications Interact with Operating Systems (DEVRY) For more course tutorials visit www.tutorialrank.com You have been asked to prepare a short lecture for users in the Accounting Department. They have expressed interest in learning more about how the operating system supports the applications they use. Your boss would like to review your lecture notes prior to the class, so you need to save them to a document. Your notes should provide details of your lecture. ----------------------------------------------------------- CIS 206 Case Study 8-2 Researching Background and Font Combinations in Fedora Core 4 (DEVRY) For more course tutorials visit www.tutorialrank.com Case 8-2: Researching Background and Font Combinations in Fedora Core 4 You have been asked to prepare...
Words: 3261 - Pages: 14
...Abstract Linux and Microsoft operating systems have been developed and marketed in two very different ways. Microsoft has become synonymous with monopoly and substandard software, while Linux is based on free, open source and the concept of open standards, full disclosure and sharing. Microsoft attempts to discourage consumers from using the Linux solution by suggesting that the operating system is less than perfect, yet it remains blind to its own operating system's problems existent within Windows 95/98 and Windows NT. It's a well-known fact that Microsoft dominate the software market despite these facts. Are they operating within legal and ethical boundaries? And is it possible that they could fall from grace because of this? `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (Linus Torvalds) Introduction Linux and Microsoft operating systems have been marketed very differently. The objectives of the two factions are very different indeed. One seems to be oriented towards market domination, market cornering and making the most amount of money it can, and the other towards creating a free, open source operating system. This may sound too simplistic with the two extremities, and may be a bit more complicated. This report will investigate into the differences in the way that the Linux and Microsoft operating systems have been developed and marketed, and how Microsoft...
Words: 1704 - Pages: 7
...Comparison of Windows, Mac OS X and Linux Operating Systems Team A POS/355 March 6, 2015 Memory Management System Memory management is the process of allocating memory during your programs runtime. Memory Management in MAC OS is a multi-core and multi-processor execution that is supported and a programming API, which is called grand central dispatch. It is in the MAC OS. It provides a pool of available threads. There are ways to prevent memory related problems; Freeing data that is still in use, this can cause memory corruption that can result in your application crashing or worse corrupted user data. The MAC operating system can provide most concurrency as possible based on the number of cores available, and those threads depend on the capacity of the system. Windows memory management system is both physical and has virtual memory. It is mainly controlled by the virtual memory managers and pages. “Windows operating system operates on many platforms then it uses page sizes that can range between 4KB to 64KB. So this means that windows virtual memory can control how memory can allocate paging performance” (Stallings, 2013). Committed, Available, and Reserved are three types of regions of space or memory that the operating system can manage. Committed region is space it’s pages that have been stored either in physical or virtual memory. It also allows the process to access the virtual memory pages. Available region is where the address of the process is not being used...
Words: 2964 - Pages: 12
...electronic information B) The way they encode each character and the number of bits used Exercise1.4.5 Use the web to explore the application of UTF-8 text encoding. What features are provided by UTF-8 that is not provided by ASCII? Why was it chosen to replace ASCII as the standard for the web? A) A variable with encoding that can represent every character in the Unicode character set B) Utf-8 functions better on the web C) It can translate foreign languages Lab Review 1.4 1. Using the ASCII encoding scheme, write your name (including the space between your first and last name) in hexadecimal. How much memory would it take to store your name if each ASCII character occupied a byte? = 14 J | a | v | o | n | | C | h | e | s | t | n | u | t | 4a | 61 | 76 | 6f | 6e | 20 | 43 | 68 | 65 | 73 | 74 | 6e | 75 | 74 | 2. Using a word size of 64 bits, how much...
Words: 1580 - Pages: 7
...edhat® ® Te r r y C o l l i n g s & K u r t W a l l UR ON IT OOLS IN Y T C E CD-R L TH O ED UD M Linux Solutions from the Experts at Red Hat ® ® P R E S S™ SEC Red Hat® Linux® Networking and System Administration Red Hat® Linux® Networking and System Administration Terry Collings and Kurt Wall M&T Books An imprint of Hungry Minds, Inc. Best-Selling Books G Digital Downloads G e-Books G Answer Networks e-Newsletters G Branded Web Sites G e-Learning New York, NY G Cleveland, OH G Indianapolis, IN Red Hat® Linux® Networking and System Administration Published by Hungry Minds, Inc. 909 Third Avenue New York, NY 10022 www.hungryminds.com Copyright © 2002 Hungry Minds, Inc. All rights reserved. No part of this book, including interior design, cover design, and icons, may be reproduced or transmitted in any form, by any means (electronic, photocopying, recording, or otherwise) without the prior written permission of the publisher. Library of Congress Control Number: 2001093591 ISBN: 0-7645-3632-X Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 1O/RT/QT/QS/IN Distributed in the United States by Hungry Minds, Inc. Distributed by CDG Books Canada Inc. for Canada; by Transworld Publishers Limited in the United Kingdom; by IDG Norge Books for Norway; by IDG Sweden Books for Sweden; by IDG Books Australia Publishing Corporation Pty. Ltd. for Australia and New Zealand; by TransQuest Publishers Pte Ltd. for Singapore, Malaysia, Thailand...
Words: 220815 - Pages: 884
...done by | Changes Approved by | 05/04/2011 | 1.0 | Website Content | SVP | | | | | | | | | | | | | | | | | Contents 1 28/10/11 4 1.1 General Changes 4 1.2 Thin Clients Page Content 4 1.3 Ordinary PC v/s COGITATE Content 5 1.4 Solutions Content 6 1.4.1 Solutions for Hotels 6 1.4.2 Multi-user Computing 6 1.5 Net Computer Series Content 6 1.6 Testimonials 6 1.7 Enquiry 6 28/10/11 General Changes - Remove 'overview' from the menu. No point having home and overview separately. Put home as a menu item – this is opened by default and the page content is the same as the overview page. Remove home from the circle in the edge. - Solution should be a drop down with 2 parts: - Solutions for Hotels - Multi-user Computing - Rename 'net books' as 'Net computer series’ - Change 'reviews' to 'testimonials'. - Remove 'Cogitate Computer Layouts' from the overview page. (note layout is one word- not lay-out) - Remove ‘Support’ menu item - Add a new menu item called ‘Ordinary PC v/s COGITATE - Rename ‘Buy Now’ to ‘Enquiry’ - In the overview page, change 'Welcome to Cogitate' to 'Cogitate' Note: the order and names of the menu items: * Home * Thin Clients * Ordinary PC v/s COGITATE * Solutions * Net Computer Series * Testimonials (vertical menu) * Enquiry – this will lead to a submit form like in ezeecloud Home Page Title tag: COGITATE – Thin Client Solutions and Net Computer Series ...
Words: 854 - Pages: 4
...Assignment 3: Evaluate Virtual Work Software Virtual Desktop Infrastructure Jeanette Johnson Lawrence Technological University MIS 7463 – Virtual Work Environments – Spring 2013 Dr. Anne Kohnke, Assistant Professor of IT, College of Management April 13, 2013 Contents Product Description and Application 3 Major Issues 4 Why the Need for VDI? 4 Is VDI for Everyone? 5 Successful Application of VDI 5 What Exactly Does VDI Offer Organizations? 5 Oracle Virtual Desktop Infrastructure Specifications….at a Glance 7 Reviews 8 What Oral Roberts University has to say about VDI 8 Scripps Networks’ Review of VDI 10 What Small Business Computing Reviewer, Joe Moran, Thinks of VDI 10 Summary and Interpretation of Reviews 11 Implementation 12 VDI Project Plan: Start with Using the Proper Apps and Utilize Pilot Program 13 VDI Licensing: Be Wary about Going for the $40 (or less) per Desktop Guarantee 13 Ensure you Tackle VDI Storage Challenge with Network-Attached Storage (NAS) System and Data Deduplication 14 Factors to Consider When Considering Whether or Not to Implement VDI 15 Conclusion 16 VDI offers Better Support 16 VDI Helps Strengthen Security 16 The BYOD Crowd will Be Happier with VDI 17 Product Description and Application Virtual Desktop Infrastructure (VDI) is simply the practice of hosting desktop operating systems (OS) in a virtual...
Words: 4825 - Pages: 20
...A Practical Guide to Linux Commands, Editors, and Shell Programming SECOND EDITION ® Mark G. Sobell Upper Saddle River, NJ • Boston • Indianapolis • San Francisco New York • Toronto • Montreal • London • Munich • Paris • Madrid Capetown • Sydney • Tokyo • Singapore • Mexico City Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals. The author and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liability is assumed for incidental or consequential damages in connection with or arising out of the use of the information or programs contained herein. The publisher offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales, which may include electronic versions and/or custom covers and content particular to your business, training goals, marketing focus, and branding interests. For more information, please contact: U.S. Corporate and Government Sales (800) 382-3419 corpsales@pearsontechgroup.com For sales outside the United States, please contact: International Sales international@pearson.com Visit us on the Web: informit.com/ph Library of Congress Cataloging-in-Publication...
Words: 228961 - Pages: 916
...year student of Computer Science at the University of Helsinki, developed the preliminary kernel of Linux, known as Linux version 0.0.1 Free software, as defined by the FSF (Free Software Foundation), is a "matter of liberty, not price." To qualify as free software by FSF standards, you must be able to: Run the program for any purpose you want to, rather than be restricted in what you can use it for. View the program's source code. Study the program's source code and modify it if you need to. Share the program with others. Improve the program and release those improvements so that others can use them. Red Hat Linux : One of the original Linux distribution. The commercial, nonfree version is Red Hat Enterprise Linux, which is aimed at big companies using Linux servers and desktops in a big way. (NJIT) Free version: Fedora Project. Debian GNU/Linux : A free software distribution. Popular for use on servers. However, Debian is not what many would consider a distribution for beginners, as it's not designed with ease of use in mind. SuSE Linux : SuSE was recently purchased by Novell. This distribution is primarily available for pay because it contains many commercial programs, although there's a stripped-down free version that you can download. Mandrake Linux : Mandrake is perhaps strongest on the desktop. Originally based off of Red Hat Linux. Gentoo Linux : Gentoo is a specialty distribution meant for programmers. A runlevel is a software configuration...
Words: 7097 - Pages: 29
