Changing the way you learn

OperatingSystems

Linux
1. Linux status as the most prominent free software and Open Source Operation System on the last 10 years
  1. Was developed by Linus Torvalds at the University of Helsinki in 1991
2. Root in Linux
  1. In Linux, the administrator is called “root”, and you should use root access only when you absolutely need it
  2. such as when you try to install programs or modify system settings.
3. Help is available
  1. One of the best parts about switching to Linux is that there are plenty of people who have done it before
4. Command-line interface
  1. The command line can be used to recover the system if the graphics subsystem fails
5. Partitioning
  1. All Linux distributions have bundled partitioning software such as fdisk or gparted
6. File Systems
  1. Linux, Supported: ext2, ext3, ext4, ReiserFS, FAT, ISO 9660, UDF, NFS, NTFS, JFS, XFS, Minux and GmailFS.
7. Memory Management Disk
  1. This reduces slowdown due to disk fragmentation from general used
8. Emulation and virtualization
  1. VMware, VirtualBox, Xen, Parallels, Win4Lin. KVM and QEMU can be used to run other operating systems within Linux
9. Open vs. Closed
  1. Anyone with programming experience is free to fix bugs and submit them for inclusion in future releases and updates.
Windows
1. Windows has retained an extremely large retail seles personal desktop computers
2. Don’t login as Admin
  1. It’s common practice for Windows users to login as the system administrator all the time.
  2. This is one of the major reasons why Windows computers are so easily infected with viruses and malware
3. Full vs. partial hardware support
  1. Windows, you know that most every piece of hardware will work with the operating system
4. Command-line interface
  1. The Command Prompt exists to provide direct communication between the user and the operating system
5. Partitioning
  1. Windows, expanding NTFS partitions is possible without problems, and on Vista it is possible to shrink partitions as well.
6. File Systems
  1. Windows supported: NTFS, FAT, ISO 9660, UDF, and others
7. Memory Management Disk
  1. Windows NT family (including 2000, XP, Vista, Win7) most commonly employs a dynamically allocated pagefile for memory management
8. Emulation and virtualization
  1. VMware, VirtualBox, Virtual PC, Virtual Server, Hyper-V (only available on 64-bit versions of Vista SP2, Windows 7, and Windows Server 2008), Parallels, QEMU can be used to run other operating systems within Windows.
9. Open vs. Closed
  1. In Windows, Claims its platform is more secure because of a comprehensive approach to security using the Security Development Lifecycle
Linux and Microsoft Windows differ in philosophy, cost, versatility and stability, with each seeking to improve in their perceived weaker areas. Comparisons of the two operating systems tend to reflect their origins, historic user bases and distribution models
1. The essence of this study is to demonstrate a setof proposed metrics for quantifying the security risksinvolved in different operating systems, andcomparing the risks between operating systems.
  1. Table1
    1. descriptive statistics and several issues withrespect to our data
    2. Windows is dominant in the server segment
  2. Table 2
    1. presents the changes in the use of operating systemsand the number of computers in each segment over time
  3. Table 3
    1. Panel B shows that more firms switched from Windowsto Linux than from other operating systems to Linux
    2. Panel C of Table 3 reports the fractions of firms that updated theiroperating systems
    3. Panel A which reports that about 32.3% of firms have adoptedserver computers for the first time
    4. Panel D of Table 3 presents the proportion of firms that mighthave tested an operating system in the server segment

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OperatingSystems

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	Created by Juan Carlos Faja almost 10 years ago