Tag: architecture

Intel core 2 duo vs Intel dual core

Do you still do a confusion between Intel core 2 duo vs Intel dual core ? We also have others kind of processors:

Pentium Dual-Core – The Pentium Dual-Core brand refers to mainstream x86-architecture microprocessors from Intel. They are based on either the 32-bit Yonah or (with quite different microarchitectures) 64-bit Merom, Allendale, and, more recently, with the launch of the model E5200, Wolfdale core, targeted at mobile or desktop computers. In terms of features, price and performance at a given clock frequency, Pentium Dual-Core processors are positioned above Celeron but below Core and Core 2 microprocessors in Intel’s product range. The Core 2 brand was introduced on July 27, 2006, comprising the Solo (single-core), Duo (dual-core), Quad (quad-core), and in 2007, the Extreme (dual- or quad-core CPUs for enthusiasts) version. Intel Core 2 processors with vPro technology (designed for businesses) include the dual-core and quad-core branches.

Intel Core – The Core brand refers to Intel’s 32-bit mobile dual-core x86 CPUs that derived from the Pentium M branded processors. The processor family used a more advanced version of the Intel P6 microarchitecture. It emerged in parallel with the NetBurst (Intel P68) microarchitecture of the Pentium 4 brand, and was a precursor of the 64-bit Core microarchitecture of Core 2 branded CPUs. The Core brand comprised two branches: the Duo (dual-core) and Solo (Duo with one disabled core, which replaced the Pentium M brand of single-core mobile processor).

Intel Core 2 – The Core 2 brand refers to a range of Intel’s consumer 64-bit x86-64 single-, dual-, and quad-core CPUs based on the Intel Core microarchitecture. The single- and dual-core models are single-die, whereas the quad-core models comprise of two dies, each containing two cores, packaged in a multi-chip module.[1] The introduction of Core 2 relegated the Pentium brand to the mid-range market, and reunified laptop and desktop CPU lines, which previously had been divided into the Pentium 4, Pentium D, and Pentium M brand.

If you read these information (from Wikipedia) and still aren’t understanding, I advised you read this article on binaryday.com.

The confusion between Intel core 2 duo and Intel dual core primarily resulted from a pointless naming convention by Intel. 2 and dual may be synonyms in English but that does not make Intel core 2 duo vs Intel dual core any more similar. The similarity of names makes even many computer geeks confused when asked to do a comparison of Intel core 2 duo and Intel dual core.

Intel Dual Core is the first dual-core CPU from Intel. The Dual core makes use of two cores on a single die i.e it has two chips in one package. It solves the problem of overheating of Intel Pentium D without compromising on the performance.

Intel Core 2 Duo processors are the next gen processors from Intel. It is developed with a new Architecture called Core. The new architecture of Intel core2 duo makes it a lot better processor that runs cool. Most importantly the Intel core2 duo is a super over clocker.

Thanks again to this article on binaryday.com

Kleber Rodrigo de Carvalho

IBM WebSphere System z Software Podcasts

I’m developer with focus on Java platform, however I’m studying in my Master Business Administration course, high available enterprise server architecture. I already studied mainframe architecture then I realized that there are a lot of technologies in our UNIX servers nowadays that already had in mainframe environment a long time ago. I was googling about System Z and I found out IBM WebSphere System z Software Podcasts.
Take a look on this podcast series, I listened some episodes and I really enjoy it.

Kleber Rodrigo de Carvalho

Cloud computing versus grid computing

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

10 Must-Know Topics For Software Architects In 2009

In the last year or so, after quite a lull, the software architecture business has gotten rather exciting again. We’re finally seeing major new topics emerging into the early mainstream that are potential game-changers, while at the same time a few innovations that have been hovering in the margins of the industry are starting to break out in a big way.

Continue reading here.

Kleber Rodrigo de Carvalho

IBM software architect kit

This complimentary e-kit for IT architects provides a collection of best practices, how-to guides, and materials to help you deliver a stable, reusable architecture, as well as guidance on related IBM tools that promote communication to unify all aspects of design and development.

Explore the benefits of:

  • Reducing software delivery complexity with visual languages
  • Patterns-based development
  • Structural review and control
  • Service-Oriented Architecture (SOA)

Reduce IT complexity with software development tools from IBM

Kleber Rodrigo de Carvalho

Rivals Say IBM Stifles Competition to Mainframes

IBM has dominated the mainframe computer business since the category was created four decades ago. And it still gets about one-quarter of its $100 billion in annual revenue from sales, software, services and financing related to the machines. Continue reading at NY Times.

Kleber Rodrigo de Carvalho

Presentation: REST: A Pragmatic Introduction to the Web’s Architecture

In this presentation recorded during QCon London 2008, Stefan Tilkov introduces the audience to REST seen as an architectural style. He thinks that REST is not an alternative to SOA but it can serve SOA to reach its goals. Stefan also covers other related topics: HTTP, WS-*, SOAP, CORBA, RPC, enterprise, in an attempt to make the listeners understand what REST is and what is not and how it helps.

Watch: REST: A Pragmatic Introduction to the Web’s Architecture (1h)

Kleber Rodrigo de Carvalho

WebSphere Application Server V7 Available

The newest version of WebSphere Application Server, version 7.0, is now available.

WAS 7 is certified for Java EE 5, including EJB 3.0 and JAX-WS 2.1, and is built on Java SE V6.

For more information:

Thank you Bobby Woolf

Is cloud computing a trap?

Cloud computing is a trap, warns GNU founder Richard Stallman.

Web-based programs like Google’s Gmail will force people to buy into locked, proprietary systems that will cost more and more over time, according to the free software campaigner.

Kleber Rodrigo de Carvalho