New Horizons Get Schooled Blog

Cloud Computing Services vs Virtualization Technology - A “Technical in Nature” Discussion

Posted on 5/2/12 9:15 AM by Get Schooled in advice, in cloud, in Guest Bloggers, in New Horizons Computer Learning Center, in Nora Daniels, in virtualization

I have recently had a discussion with a fellow colleague about the technologies of cloud services and virtualization solutions. The discussion was on their similarities and differences. On one note, it can be said that cloud services has a core component which is to be virtualized! But, having a technological focus, one must also look at the different layers to the term “virtualized” vs “virtualization” which can range from server, network, data, and even software[SaaS] and even the complete infrastructure as a service [IaaS], which may or may not have anything to do with cloud-based service solutions.
Basically, by definition to virtual-ize itself means being on or simulated on a computer or computer network <print or virtual books> <a virtual keyboard> : as a: occurring or existing primarily online (Merriam-Webster) which in itself is does defines cloud services. However, the offset of that is virtualization technology is NOT cloud technology but a possible major proponent of it. Virtualization in itself is the separation of the physical and logical component like hardware and the OS and its applications. You can have a virtualized infrastructure providing services that are not cloud-based and this has been done both privately and publically (managed service providers). However, you can also have a cloud service being provided online “virtually” that can also be using virtualization technology or not. As users or clients the line drawn between the two is fuzzy and gray and often unknown, for IT on the other hand it becomes even more challenging to separate a technological paradigm (virtualization) from a business model (cloud services). One often hears the term virtual or virtualizes and often jumps straight to “virtualization technology” which is not always the context that these terms are being used in.
Cloud computing is one of Gartner’s top 10 strategic technology trends for 2009 – #2, but, right BEHIND virtualization. Analysts say the economics of cloud for customers are truly compelling, with expected savings for business applications of 3-5x. A cloud service can be infrastructure for hosting applications or data storage, a development platform, or even an application that you can get on-demand, either off-site at a provider, such as SunGard or Salesforce, or built onsite within IT.
So, Charles King, Principal Analyst at Pund-IT has put it succinctly: "Without virtualization there is no cloud- that's what enabled the emergence of this new, sustainable industry." Cloud computing services do NOT require the use of a virtualization technology like VMWare, Citrix, or even Microsoft Hyper V to provide online services, virtually. It may seem that it does because so many public and private clouds depend on such virtualization tools. But these are two distinct markets and technologies with wondrous futures ahead of them.
So, is cloud technology virtualized, yes, one could argue by the technical definition that a cloud based service is virtual in that it lives “in the cloud” and not in your office. However, if looking at the technological aspect of the solution being used to host the cloud services, the use of “virtualization technology” as a layer of abstraction will vary in its utilization depending on the services required to be provided and the customer’s business need since virtualization technology in itself is not “cloud”.
Even more importantly, we have seen new technologies evolve over the past decade that are essential to the notion of the cloud. That key technology is advancements in virtualization capabilities and technology. In addition to some amazing cost savings and goodness for the environment (Green IT), virtualization's ability as a layer of abstraction to separate the OS and application from the hardware give it ideal properties to best deliver these on-demand cloud services.
Finally, let’s also be clear, virtualization and cloud computing aren’t always the answer. Virtualization technology can be a key enabling technology for cloud computing environments to both help deliver optimized, automated, on-demand utilization, flexibility and scalability resource solutions be it internal, outsourced or hosted. But we are slowly learning what applications work best in these varying types of environments and definitely those that do not!


0 CommentsContinue Reading →

Make the case of your element and attribute names consistent with XSLT

Posted on 4/5/12 1:55 PM by Get Schooled in advice, in New Horizons Computer Learning Center, in XML, in Tips & Tricks

A common use of the XSLT translate() function is to change the case of text strings within a document; however, you may run into situations where you need to change the actual element and attribute name cases, not simply text strings within them.

0 CommentsContinue Reading →

The simple tool for when devices don't power up correctly

Posted on 4/5/12 1:49 PM by Get Schooled in Cisco, in New Horizons Computer Learning Center, in Tips & Tricks

Failure of Cisco devices to power up correctly may seem puzzling if they're known to work in other configurations. Sometimes the power outlets or cables may really be at fault.

0 CommentsContinue Reading →

Control your eraser lines

Posted on 4/5/12 1:43 PM by Get Schooled in advice, in New Horizons Computer Learning Center, in Adobe, in photoshop, in Tips & Tricks

 Have you ever tried to erase a portion of an image in a straight line? This can be rather difficult using just the mouse and the Eraser tool. Luckily, there's a way to do this without a lot of fuss. Instead of erasing in a continuous motion with the Eraser tool, just click your mouse where you want to begin erasing. Then, press and hold [shift] and click on the end point. Photoshop automatically erases the area between each click in a perfectly straight line for you.

0 CommentsContinue Reading →

View your chart and its underlying data simultaneously

Posted on 4/5/12 1:19 PM by Get Schooled in advice, in Excel, in Microsoft, in New Horizons Computer Learning Center, in Tips & Tricks

0 CommentsContinue Reading →

Using the chart tool in Microsoft Word 2010

Posted on 3/22/12 11:45 AM by Get Schooled in advice, in Cristian Easterly, in Guest Bloggers, in Microsoft, in New Horizons Computer Learning Center, in Word, in Tips & Tricks

When you are creating a document in Microsoft Word, you may want to add some kind of visual element like a chart. Instead of creating a chart in another design based program, you can use the chart tool in Word. When you insert a chart, you will automatically see a second window appear on your screen. Microsoft Excel will automatically open so that you can edit the data that will be displayed in your chart. For those of you who are Microsoft Word users, you may not need to use Excel very often. And for those of you that are Excel users, you may not need to use Word very often. The great thing about adding charts is that it works with both programs and makes it very easy to understand.

0 CommentsContinue Reading →

Make The Best Use Of Worksheet Hyperlinks

Posted on 2/24/12 11:23 AM by Get Schooled in Excel, in Microsoft, in New Horizons Computer Learning Center, in Tips & Tricks

0 CommentsContinue Reading →

I saved over my original, oh no!

Posted on 2/24/12 10:14 AM by Get Schooled in advice, in cs5, in New Horizons Computer Learning Center, in Adobe, in Tips & Tricks

0 CommentsContinue Reading →

Text links add bigger SE benefits than image links alone

Posted on 2/24/12 9:34 AM by Get Schooled in advice, in New Horizons Computer Learning Center, in web design, in Tips & Tricks

They say a picture is worth a thousand words, unless you're talking SEO. If your site uses Java script-powered drop-down menus, or uses image links, you might not be getting optimal search results. Search engine robots and spiders prefer to follow text links, so if you use images in your navigation bar, be sure to also include text links. The same is true of links within script.

0 CommentsContinue Reading →

Prevent or control use of USB flash drives

Posted on 2/1/12 3:10 PM by Get Schooled in advice, in New Horizons Computer Learning Center, in security, in Tips & Tricks

Tiny flash memory drives that fit on a keychain (sometimes called thumb drives) are inexpensive and convenient for transferring files between computers that aren't on the same network-- but they can also present a security risk for your organization. They can be used to bring viruses and unauthorized software in, or to smuggle sensitive information out. Luckily, there are software products, such as GFI's Portable Storage Control (PSC), that let you control the use of these devices on your network.

0 CommentsContinue Reading →

Search by Topic

    Lists by Topic

    see all

    Be at the center of it all.


    Knowledge Ninjas

    a web-based service that allows software application end users to access a subject matter expert in real-time via a chat interface to resolve questions or problems they encounter in their specific software.