Kleber Carvalho » developerworks

Java Collections API

Kleber Carvalho — Wed, 05 May 2010 17:11:34 +0000

The Java™ Collections API is far more than a replacement for arrays, though that’s not a bad place to start. Ted Neward dispenses five tips for doing more with Collections, including a primer on customizing and extending the Java Collections API. Continue reading it here

Kleber Rodrigo de Carvalho.

Java technology, IBM style: A new era in Java technology

Kleber Carvalho — Mon, 26 Apr 2010 13:12:48 +0000

The eagerly awaited final release of Java™ SE 7 is expected to include enhancements to all the major aspects of the language and the virtual machine. Both Oracle and IBM have released Early Access downloads of their respective implementations for review and feedback. In this article, Chris Bailey, architect of the Java service strategy at the IBM Java Technology Center, introduces some of the changes in store, from both the Oracle specification and the value-add that IBM provides. Continue reading it here.

Kleber Rodrigo de Carvalho

Java 7 and the future of Java

Kleber Carvalho — Mon, 26 Apr 2010 13:06:39 +0000

I listened this podcast, very useful for those who want to understand about the future of Java.

Kleber Rodrigo de Carvalho

My blog highlighted in developerWorks

Kleber Carvalho — Fri, 13 Nov 2009 16:41:02 +0000

My blog is highlighted in developerWorks Java main page.

http://www.ibm.com/developerworks/java/

Since developerWorks implemented the social network called mydeveloperWorks (basead on Lotus Connection solution) I have participated in this social media. If you are in IT area, I really advise you to create you profile and get connected. MyDeveloperWorks is a fun way to keep updated and to learn which are the hot tech topics.

Kleber Rodrigo de Carvalho

Comparing comercial UNIX version

Kleber Carvalho — Wed, 04 Nov 2009 19:58:35 +0000

In recent years, HP, Sun, and IBM® have all released new versions of their commercial UNIX®-based operating systems. This article compares and contrasts some of the innovations in their releases. Learn the differences on how to work with certain tasks, such as networking and performance tuning. Also, see at a high level some of the virtualization differences among these big three.
AIX 6.1, Solaris 10, and HP-UX and the System p

Kleber Rodrigo de Carvalho

Como será a forma de trabalho no futuro ?

Kleber Carvalho — Mon, 22 Jun 2009 16:45:57 +0000

Jim Coughlin escreveu um artigo no seu blog como a IBM preve 9 tendências para trabalho inteligente para 2009. Veja o artigo em português do Brasil e em inglês também.

IBM Prediz 9 Tendências de Trabalho Inteligentes para 2009

IBM Predicts 9 Smart Work Trends for 2009

Kleber Rodrigo de Carvalho

Smart Work for a Smarter Planet

Kleber Carvalho — Fri, 22 May 2009 22:28:55 +0000

I was reading SmartSOA blog about Top 5 Announcements from IBM Impact 2009, then I found out the SmartSOA channel on youtube, and specially I like this video about Smart Work for a Smarter Planet. I’m an IBMer. Check it out .

Kleber Rodrigo de Carvalho

A importância do curso técnico

Kleber Carvalho — Tue, 19 May 2009 19:05:51 +0000

Escrevi um post no blog do Academic Initiative, onde eu escrevo sobre como o colegial técnico me ajudou a me tornar o profissional que eu sou hoje. Vale a pena dar um lida.

Kleber Rodrigo de Carvalho

Utilizing Web 2.0 in business

Kleber Carvalho — Mon, 11 May 2009 15:14:25 +0000

While Web 2.0 has been a huge hit with consumers, some businesses have been much slower to embrace it. Many companies, however, are now realizing the great potential of Web 2.0 and how Web 2.0 services such as YouTube, Twitter, and SlideShare can provide value to their organizations. See how businesses can exploit the power of Web 2.0 services while simultaneously improving workplace relationships. Empower your employees to share information that helps generate sales leads, aids in recruitment, and assists in strengthening your company’s brand, image, and corporate identity. Explore business-oriented Web 2.0 tools such as LinkedIn and CrunchBase and the Web services and APIs that many of these tools offer, allowing their benefits to be incorporated into other applications. Continue reading it here.

Kleber Rodrigo de Carvalho

Cloud computing versus grid computing

Kleber Carvalho — Fri, 08 May 2009 17:20:34 +0000

When I think about grid computing I think about an application such as SETI@home. Grid computing is the application of several computers to a single problem at the same time, usually to a scientific or technical problem that requires a great number of computer processing cycles or access to large amounts of data. What distinguishes grid computing from conventional cluster computing systems is that grids tend to be more loosely coupled, heterogeneous, and geographically dispersed. Also, while a computing grid may be dedicated to a specialized application, it is often constructed with the aid of general-purpose grid software libraries and middleware.

I don’t know why I was mixing up grid computing with peer-to-peer. A peer-to-peer (or P2P) computer network uses diverse connectivity between participants in a network and the cumulative bandwidth of network participants rather than conventional centralized resources where a relatively low number of servers provide the core value to a service or application. A pure P2P network does not have the notion of clients or servers but only equal peer nodes that simultaneously function as both “clients” and “servers” to the other nodes on the network. This model of network arrangement differs from the client-server model where communication is usually to and from a central server. When I think about peer-to-peer network I keep in mind applications such as aMule for Linux, e-mule for Windows and Vuze (formerly Azureus).

Cloud computing is a style of computing in which dynamically scalable and often virtualized resources are provided as a service over the Internet. Users need not have knowledge of, expertise in, or control over the technology infrastructure “in the cloud” that supports them.The concept incorporates infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) as well as other recent technology trends that have the common theme of reliance on the Internet for satisfying the computing needs of the users. Cloud computing services usually provide common business applications online that are accessed from a web browser, while the software and data are stored on the servers.

Cloud computing is often confused with grid computing (”a form of distributed computing whereby a ’super and virtual computer’ is composed of a cluster of networked, loosely-coupled computers, acting in concert to perform very large tasks”), utility computing (the “packaging of computing resources, such as computation and storage, as a metered service similar to a traditional public utility such as electricity”)and autonomic computing (”computer systems capable of self-management”). When I think about cloud computing, I keep in mind companies such as IBM, Amazon, Google, Microsoft or Yahoo which are some of the major cloud computing service providers.

If you want additional information about grid computing and cloud computing I advise you read these references below:

RightScale Blog – Cloud Computing vs. Grid Computing

developerWorks – Cloud computing versus grid computing

Kleber Rodrigo de Carvalho