Showing posts with label chapter 5. Show all posts
Showing posts with label chapter 5. Show all posts

Sunday

Virtualization

Imagine how is it if to be if our computer can only able to run one software program at a time. That meant in order to check our mail, we need to turn off Microsoft office application, or we have to turn off movies just to use the Internet. Luckily, we can use more than one software application at a time, but we seldom think of running more than one operating system at once. Actually like software program, we can also run more than one operating system simultaneously. Here, the technology of virtualization has been created. It allow us to run multiple operating system at one time on single computer. Virtualization is a technology which achieve higher server density. However, it does not increase much computing power.

There are various uses of virtualization that aids human endeavor:

1. Run old application

The application that does not work well in Window 7 or Vista can be opened by Window Xp and install it within a virtual machine (VM). Then install your application.

VMware Player features Unity mode, which allows applications running in the virtual machine to appear as if they're running natively on the host computer. They have their own taskbar buttons and their own program windows, making for a seamless experience. For this to work, however, you'll need to install the VMware Tools program on the virtualized operating system. You're usually prompted to do this after installation of the OS has finished.

2. Access Virus-Infected Data

If you have ever sent a file that your antivirus program has alerted, but it contains important data you just have to view? Most virtualization software includes snapshot functionality, which means you can create a "saved state" of the virtual OS and its entire hard disk. It's a little like travelling back in time.

You could create a snapshot in the virtual machine, open the infected file within the VM to access the data and, if the virus causes chaos, simply click to restore the VM snapshot.

3. Browse in Complete Safely

Why not install Windows on VMware Player, then install Firefox, and run it in Unity mode so it appears to run natively on the host computer?

Essentially Firefox will be running in a sandbox meaning that should it one of its plugins get hacked while you're online, there'll be no absolutely no risk to your actual operating system. You could create a snapshot once everything's been configured in the virtual machine in order to get things back up and running quickly, before anything go wrong.

4. Test Software, Upgrades, or New Configurations

You could use your virtual computer not only to test malware but new software, updates, or even new configurations of software before you roll them out for real on your main OS.

5. Back Up an Entire Operating System

Because the virtual OS is entirely contained within a series of files, backing it up is as simple as backing up any other files. It's the same with virtualized server installations too. If you're running a virtual machine on a server to host your mail server, and it's brought down by a hack attack, then bringing things back to working order is as simple as restoring the backup files.

7. Create a Personal Computer

If you're out of the office, there's no need to take your laptop with you. Just leave it running (with power saving turned off!), or tablet computer instead, and access the laptop via a Remote Desktop Protocol (RDP) connection over the Internet. This will let you access the same desktop environment you're used to, although there'll be no fancy graphics.

8. Develop a Project or Website in Virtual Space

Virtualization makes it easy to create new development environments, or maintain staging environment that synchronize with your live servers.

Author: Keir Thomas

Retrieved from:

http://www.cio.com.au/article/378008/10_cool_things_virtualization_lets_do/






Saturday

windows 7

Windows 7 is the latest release of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs. Windows 7 was released to manufacturing on July 22, 2009, and reached general retail availability on October 22, 2009, less than three years after the release of its predecessor, Windows Vista. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time.

Unlike its predecessor, Windows Vista, which introduced a large number of new features, Windows 7 was intended to be a more focused, incremental upgrade to the Windows line, with the goal of being compatible with applications and hardware with which Windows Vista was not at the time. Presentations given by Microsoft in 2008 focused on multi-touch support, a redesigned Windows shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

The first aspect which can simply decide the fate of a particular product. Well, Microsoft has worked a lot on this part it seems. Windows 7 uses the concept of jumplists, to organize recently used files as well as webpages. Windows 7 also presents to the users a new improved taskbar - an interactive taskbar that allows you to align the objects on the taskbar of your own accord and with more functionalities. The three new features, Aero Shake, Aero Peek and Snap provide very simple ways to get yourself out of the clutter on your desktop.

Media sharing is another aspect which any common user would find a very much enhanced and improved factor in Windows 7. Technology has kept on changing over the ages and media formats have not been an exception. Windows 7 provides much better enhancements and drag and drop features which were not available with the previous Windows Media Player. TV tuner cards can be used with much more ease, making the media viewing experience a much more lively utility of the Windows 7 operating system.

Windows 7 has made home networking a much more easy to use feature. The interface for connecting the machines to a home network has been made much more lively and easy to use. Setting up a few computers in a network is a much more easier task and sharing information is also relatively easier, not that it was much complicated in the earlier versions. It has also provided better features for network security making a small home or office network less vulnerable to hackers. Read more on computer networking.

Windows 7 SP1 update




Unless you belong to one of Microsoft’s secret clubs, in which case it’s already been made available to you, the very first service pack for Windows 7 should be popping into your Windows Update right around now. For many system administrators out there, this news marks the start of a very long week. A week in which typically work must be interrupted, machines must be individually updated, and of course being ready in case anything goes wrong (my condolences you are also running a Windows Phone 7 network).

One really notable feature to this update isn’t even in the update, but rather its deployment. Microsoft has made it easy(er) for system administrators to manually apply the Service Pack 1 update.
By making available a single massive file (2GB) with install capabilities for all versions and options within Windows 7, Microsoft has created an opportunity for both time and resources to be saved. No untimely network strain, no complicated set of installation instructions, no installing the wrong version accidentally. Just load the file onto a flash drive or compile an autorun CD and you are good to go. It’s an important step for Microsoft to achieve their goal of making sure that as many computers as possible are at the current version.
So for you home users why should you grab the SP1 update today? As always the service pack is, first and foremost, a compilation of the security updates that have been released up until this point. Additionally new stabilization methods have been implemented allowing for smoother function of features such as window recovery, designed to make sure your open folders are still there even if your computer powers down. Microsoft has also implemented a new licensing system for remote desktop, allowing for more secure remote computing experience.
To download SP1, simply go to the Windows Update icon in your control panel, and install the most recent updates. This initial process is brief, though will require a system restart. The total time for the update is estimated at 15 min. Good luck!

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