There are several ways to implement virtualization. Two leading approaches are full virtualization and para-virtualization.

Full Virtualization

Full virtualization provides total abstraction of the underlying physical system and create a complete virtual system in which the guest operating system can execute. No modification is required in the guest operating system or application; the guest OS or application is not even aware that it is running within a virtualized environment. The guest OS executes on the VM just as they would on a physical system. This approach can be advantageous because it enables complete decoupling of the software from the hardware. As a result, full virtualization can streamline migration of applications and workloads between different physical systems. Full virtualization provides complete isolation of different virtualized applications, which makes this approach highly secure by design. Microsoft Virtual Server and Vmware ESX Server are examples of full virtualization.

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In my previous article I have already discussed about how to use the Online Feed Aggregators to view the password protected Feed with username and password. Now the next thing that should come to your mind is how do they actually fair in maintaining the security of your account. To understand that I studied and tested a number of online feed aggregators on the known protocols such as HTTP basic, HTTP digest, Integrated Windows and HTTPS SSL protection. So let us know about these protocols first. Then it will be better to understand what suits you more.
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Online feed readers are the latest evolutions in the world of information and news sources. It is developing by leaps and bounds and that day isn't far off when online feed readers will be as essential as your newspaper or careergraphs. Keeping that in mind, online feed aggreators are implementing new characteristics on this wonderful service and password protection is just one step close to the security that you need from them.

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You can always be sure of something exemplary when it comes to Google. And they moved many a steps ahead with their reputation with the advent of Google Analytics. Therefore, the obvious question is, what exactly is this Google Analytics?

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What do you mean by a virtual world? A place where you can come and work and chat and play and leave. What if I tell you about a whole new world where you can live, breathe, play, sing, dance, do every damn thing you can do in this (sorry?) life of yours? And what if "I make you an offer that you can't refuse?" No I am no Godfather. Today, let me take you to a virtual world where you can be a REAL millionaire! The world I am talking of, may seem nonexistent unless you bump into your Second Life. You can earn real money from a virtual world and loads of it. You can be a millionaire in less than 2 years! You can earn hefty amount just by spending some time in the internet and you can even rule a world (let it be virtual for now) of your own and make your own rules. All of them and more @ Second life. And here I am with not 1 or even 2 but 18 unique ways to guide you to a hefty check in US dollars through Second life. So start living now! Read more (2025 words) »

In my quest to find the better service between Software RAID & Hardware RAID, I was caught RAID-handed among too many points and nitty-gritties of technical specifications and opinions. As a result of my explorations, I have developed a simple point-by-point structure to let you walk through this topic rather easily. First let us know what is a RAID and then we will delve into the details. According to wikipedia:

RAID stands for Redundant Array of Inexpensive Disks which is a technology that employs the simultaneous use of two or more hard disk drives to achieve greater levels of performance, reliability, and/or larger data volume sizes.

There are different levels of RAID. The most popular RAID formats are RAID-1 & RAID-5. However today we will not focus on the various RAID format. Let's go straight to the differences between software RAID and hardware RAID.

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Windows XP, arguably the world's most popular operating system, still has lots of tricks up its sleeve. Today I will show you some hidden rooms, some unknown corners in this column that you never knew existed but wanted to. Without much ado lets login to the wonderful hidden world of Windows XP.
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Apple launched iPhone in India, a country with only 1.2 billion people and overall not considered rich like their counterparts in USA. In USA Apple launched iPhone for $199 only. Steve Jobbs also promised that it will be similalry priced across all markets. So how did they target a market of 1.2 B with a very high mobile pernetration and nowhere as rich as USA? By pricing iPhone 3G at 4 times the US price at Rs. 31, 000 only (and lockdown for a year to the service provider) and without 3G. Imagine how the market reacted…

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Vodaphone sent the pricing for iPhone 3G 8GB and 16GB models in India and I have to tell you it is daylight robbery!

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Leased Lines historically have been used as reliable, resilient internet and site-to-site data connections. The main benefits have been security, reliability, SLAs, private network and flexible speeds. Leased Lines were also known for high installation charges, long installation times, hefty monthly fees and unreasonable contracts. With the advent of cheap ADSL connections, Leased Lines have become as relevant as dinosaurs except for the most demanding businesses, especially when you can bond multiple ADSL lines to get reliable broadband at a fraction of the cost.

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