The Pervasive Datacenter

Platform as a service moves into the data center

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Early discussion of cloud computing focused on the public option. In fact, the economic concept of computing delivered as a sort of utility by mega service providers such as Amazon, Google, and Microsoft was at the core of the original cloud-computing concept.

As it turns out though, these public clouds are hardly the only form that cloud computing has taken. Computing is more complicated than a true utility like electricity. For this and other reasons, private and hybrid clouds -- which use computers and other IT resources controlled by a single organization -- have evolved to become an important part more

Where IT is going: Cloud, mobile, and data

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Cloud computing seems to often get used as a catch-all term for the big trends happening in IT.

This has the unfortunate effect of adding additional ambiguities to a topic that's already laden with definitional overload. (For example, on a topic like security or compliance, it makes a lot of difference whether you're talking about public clouds like Amazon's, a private cloud within an enterprise, a social network, or some mashup of two or more of the above.)

However, I'm starting to see a certain consensus emerge about how best to think about the broad sense more

The state of 'Bring Your Own Device'

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It's dangerous for those of us in the tech industry to naively take what we see playing out in our workplaces every day as a mirror of the wider world. High-tech workers are often more technically savvy and likely to be early adopters. High-tech employers are likewise more inclined to let employees use the tools of their choice. And high-tech companies as a group are, almost by definition, far closer to technology adoption's leading edge.

Which raises the question of whether all the personal gadgets from smartphones to tablets to laptops that appear to be an increasingly integral more

Data vs. models at the Strata Conference

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SANTA CLARA, Calif.--That this week's O'Reilly Strata data conference was sold out says a lot about this corner of tech. It's hot. Like cloud computing, big data is all the rage, even if, like cloud computing, it's not so much a single thing but an intersection of technologies, market needs, and critical mass.

One of several themes that kept popping up this week was data vs. models.

In 2008, Wired's Chris Anderson wrote a provocative article titled "The End of Theory: The Data Deluge Makes the Scientific Method Obsolete." His thesis was that we more

Data mining's adult challenges

commentary Probably no data-mining legend has been more pervasive than the "beer and diapers" story, which apparently dates back to an early 1990s project that data-warehousing pioneer Teradata (then part of NCR) conducted for the Osco Drug retail chain.

As the story goes, they discovered that beer and diapers frequently appeared together in a shopping basket on certain days; the presumed explanation was that fathers picking up diapers bought a six-pack when they were out anyway. This correlation was then used to optimize displays and pricing in the stores.

That's the story anyway. The reality, as best anyone can determine, more

How a private cloud goes beyond virtualization management

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At first blush, private clouds can look a lot like virtualization. But first looks can be deceiving. While it's certainly true that we see virtualization management products extended--for example, with self-service portals--in ways that make them look superficially like clouds, we're really talking about different categories of software.

There are two ways to think about these differences. The first is in terms of different mindsets and approaches to IT operations. The other is to consider specific features and capabilities.

Consider the "big picture" aspect first. Mary Johnston Turner, research vice president of enterprise system management software, at market more

How photo products (mostly didn't) evolve during 2011

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The successor to the full-frame Nikon D700 and Canon's follow-on to the EOS 5D Mark II were widely expected to put in an appearance of some sort during 2011. They didn't.

It appears as if the D800 will be a 36-megapixel camera that will launch in early 2012. What Canon's prosumer follow-on (5D Mark III?) will look like and when it will debut is anyone's guess. The combination of the Japanese earthquake/tsunami and Thailand flood tragedies contributed to significant delays throughout the photographic industry.

Other cameras were announced but are still not widely available, apparently more

How I did with my 2011 cloud predictions

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At year's end, it's customary--or at least common--for prognosticators to trumpet the predictions they got right and to ignore the rest.

However, I've decided to break with tradition and review my entire list from last November. There aren't any howlers, but I must admit I was a bit impatient on a few fronts. (I'd like to note that fellow ex-analyst Andi Mann also did so recently.)

Less focus on definitions (and dare we say hype?). Grade: B. There's been incremental advance in user education, but I find I still need to keep a NIST definition (

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The ability to customize purchases has become the norm across so many industries, but it wasn't always so.

In the PC industry, for example, small local retailers built custom "white box" PCs going back to the fairly early days. But it wasn't until Dell went the build-to-order route in the 1990s (PDF) that it became commonplace. Today, although retail stores stock standard configurations, the option to order a custom config online is the norm.

It's therefore notable that the increasing shift, for some types of applications from on-premise software to software-as-a-service (SaaS) reverses this customization trend. "We'more

Will the cloud change programming?

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The early preview of Dart, a new alternative to JavaScript for Web programming unveiled by Google earlier this week, is the latest entrant into the pantheon of programming languages. As such, it's hardly a rarity. There are hundreds of programming languages--perhaps thousands if experimental and academic variants are included. That said, the number of widely used languages is much smaller, numbering perhaps in the dozens, with fewer still broadly relevant to general-purpose server operations and Web software.

In fact, what's so notable about the computer programming language landscape over time isn't so much its diversity and adaptability, more