Category: Entrepreneur

Operating systems for IBM System Z

Operating systems for IBM System Z

z/OS

z/OS is a 64-bit operating system for mainframe computers, created by IBM. It is the successor to OS/390, which in turn followed MVS and combined a number of formerly separate, related products. z/OS offers the attributes of modern operating systems but also retains much of the functionality originating in the 1960s and each subsequent decade that is still found in daily use. (Extreme backward compatibility is one of z/OS’s central design philosophies.)

z/OS supports mainframe staple technologies such as CICS, IMS, DB2, RACF, SNA, WebSphere MQ, record-oriented data access methods, REXX, SMP/E, JCL, TSO/E, and ISPF. However, z/OS also supports 64-bit Java, C/C++, and UNIX (Single UNIX Specification) APIs and applications, with UNIX/Linux-style hierarchical HFS and zFS file systems. z/OS can communicate directly via TCP/IP, including IPv6, and includes a standard HTTP server along with other common services such as FTP, NFS, and CIFS/SMB. Another central design philosophy is support for extremely high qualities of service (QoS), even with a single operating system instance, although z/OS has built-in support for Parallel Sysplex clustering.

z/OS on Wikipedia

z/OS on IBM

z/VM

z/VM is the current version in IBM’s VM family of virtual machine operating systems. z/VM was first released in October 2000[1] and remains in active use and development as of 2008. It is directly based on technology and concepts dating back to the 1960s, with IBM’s CP/CMS on the IBM System/360-67 (see article History of CP/CMS for historical details). z/VM runs on IBM’s zSeries, System z9 and System z10 computers. It can be used to support large numbers (thousands) of Linux virtual machines.

z/VM on Wikipedia

Z/VM on IBM

Linux on System z

Linux on System z is the collective term for the Linux operating system compiled to run on IBM mainframes, especially System z machines. Other terms with the same meaning include Linux/390, Linux on zSeries, Linux for zSeries, Linux on System z9, zLinux, z/Linux, etc.

Linux on System Z on Wikipedia

Linux on System Z on IBM

Linux on System Z on IBM (Dev site)

Kleber Rodrigo de Carvalho

Brazil as an outsourcing destination

Brazil has long been recognized as one of the powerhouses in Football worldwide. Brazil is well known for its stamina, skill and flair on the football pitch, usually leaving the rest of the world competing for second place. But far removed from these football certainties, (some Argentines may have something to say about it), is how well Brazil will fare in a newer contest now taking place across the business world — the contest to be the next location for offshoring of IT and business process services. Is Brazil a serious competitor in the “BPO/ITO World Cup”? Do they have what it takes to get to the final or do they face disqualification in the first round?

Brazil as an outsourcing destination

Analysis of Brazil as an Offshore Services Location

Brazil: is not only a world class ball player in the football field but also on the information technology services and solutions providers’ space

Kleber Rodrigo de Carvalho


InfoWorld’s guide to following your job overseas

Tech job moving abroad? Offshore yourself with it! InfoWorld’s guide to following your job overseas.

If your job is moving overseas, maybe you should move with it. Many American IT workers have looked with increasing worry as programming and datacenter jobs moved to India, China, Eastern Europe and elsewhere as companies seek cheap labor and Internet connectivity has made offshoring a plausible business option. Or perhaps your job is staying in the U.S., but being handled by an H1-B-visa-holding immigrant or a foreign consultancy such as Tata Consulting Services and Wipro that tends to import its own workers. While some companies have found offshoring to have more costs than savings when management and quality issues are factored in, it’s clear that IT jobs have been globalized and will stay that way… more

Kleber Rodrigo de Carvalho

Outsourcing: Is Brazil the nex India?

Brazil’s IT workforce offers the business savvy and technical skills to make offshoring there a worthwhile option for IT’s outsourcing needs.

Whereas India, China, Eastern Europe, and Russia get the most attention when it comes to outsourcing IT work, Brazil is fast becoming a competitive destination, offering top-quality IT talent in an intriguing location, business-wise.

Read the Brazil: IT’s next India?

Kleber Rodrigo de Carvalho

What’s new in the GNU Compiler

In the last few years, the GNU Compiler Collection (GCC) has undergone a major transition from GCC version 3 to version 4. With GCC 4 comes a new optimization framework (and new intermediate code representation), new target and language support, and a variety of new attributes and options. Get to know the major new features and their benefits.

GCC is the cornerstone of development in both the open source and closed source worlds. It’s the enabler of architectures and operating systems. When a new processor appears, its success depends on a version of GCC that will support it (a back end that can generate code for it). GCC is also the enabler of Linux®. Linux as an operating system is widely successful because it is run on so many different architectures. Once again, a port of GCC to the target environment enables Linux to be ported and run on it. Without trying to put too fine a point on it, GCC paves the way for Linux and embedded development.

But GCC can’t just sit still. New processor architectures continue to appear, and new research finds better ways to optimize and generate code. So GCC moves forward and has now matured into its fourth major release. This article explores the fundamental changes in GCC version 4 to show you why—if you haven’t switched yet—the time has come to use the compiler standard.

You can read the complete article at developerWorks.

Kleber Rodrigo de Carvalho

Capitalismo Criativo

Estava lendo a reportagem da Revista Época cujo o tema é: “As melhores invenções devem beneficiar também os mais pobres”. Foi ai que me interessei pelo tema Capitalismo Criativo que li na reportagem completa Em busca do capitalismo criativo. . Na verdade baseado nessa minha pesquisa encontrei alguns artigos e reportagens interessantes:

A New Approach to Capitalism in the 21st Century – O discurso do Bill Gates no World Economic Forum. O transcript do discurso do Bill Gates está disponível aqui.

Bill Gates Issues Call For Kinder Capitalism – Um resumo do discurso do Bill Gates no Wall Street Journal, no que tange o tema Capitalismo Criativo.

Making Capitalism More Creative – Reportagem da revista TIME, sobre Capitalismo Criativo.

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

Stop designing useless software architecture, Start coding useful software

Don’t Let Architecture Astronauts Scare You Article was written 2001, but It’s still up to date.

I disassemble two parts of that article that I’ve thought over:

These are the people I call Architecture Astronauts. It’s very hard to get them to write code or design programs, because they won’t stop thinking about Architecture. They’re astronauts because they are above the oxygen level, I don’t know how they’re breathing. They tend to work for really big companies that can afford to have lots of unproductive people with really advanced degrees that don’t contribute to the bottom line.

Remember that the architecture people are solving problems that they think they can solve, not problems which are useful to solve. Soap + WSDL may be the Hot New Thing, but it doesn’t really let you do anything you couldn’t do before using other technologies — if you had a reason to. All that Distributed Services Nirvana the architecture astronauts are blathering about was promised to us in the past, if we used DCOM, or JavaBeans, or OSF DCE, or CORBA.

Alan Braz wrote in his Sametime message: Stop Talking, Start Doing. I found the ad video that explain the main idea, clicking on “Globalization” video.

In few words, we can brief both the article and the IBM Ad Video: Stop designing useless software architecture, Starting coding useful software.

Are you learning or using new technology because It is a hype or buzzword ?
Or are you learning or using new technology because It contributes to the bottom line ?
Any thoughts ?

Kleber Rodrigo de Carvalho

Metrô de São Paulo

Na época de eleição é hora de se escutar propostas velhas e repetidas para problemas antigos. Hoje em São Paulo, se assisti muito a discussão sobre o problemas do trânsito, que estão afetando negativamente a economia da cidade, ou seja, tem muita gente perdendo dinheiro com isso. Mas não é só o usuário de transporte publico que perde dinheiro com isso, a economia da cidade está sendo afetada, e esse é um dos assuntos preferidos dos candidatos para a prefeitura da cidade de SP.

Eu acho que uma das solucões para isso, é o metro. O metro é um meio de transporte limpo, rápido que fazem com que muitas pessoas que ultizam pensem, que aquilo é a solucão para o transito “infernal” de São Paulo. O problema é que o metrô de SP está ficando pequeno, chegando no limite por falta de investimento.

Hoje saiu uma reportagem muito interessante no Jornal O Estado de S.Paulo. Uma reportagem no caderno Metróple com o titulo de SP tem o metrô mais lotado do mundo. Encontrei a noticia que São Paulo tem o metrô mais lotado do mundo no site do estadão. A notica online não é tão completa com a impressa, mas dá para ter uma ideia.

Em número de linhas temos a seguinte ordem:

  • 22 – Nova York
  • 14 – Paris
  • 12 – Londres
  • 12 – Madri
  • 12 – Moscou
  • 11 – México
  • 10 – Hong Kong
  • 9 – Berlim
  • 4 – São Paulo
  • 3 – Santiago
  • 3 – Xangai

Se olharmos para extensão em KM, temos a seguinte ordem:

  • 479 – Nova York
  • 443 – Londres
  • 278 – Moscou
  • 233 – Madri
  • 212 – Paris
  • 201 – México
  • 175 – Hong Kong
  • 153 – Berlim
  • 90 – Berlim
  • 83,2 – Santiago
  • 61,2 – São Paulo

Quanto em intervalo mínimo entre trens, temos a seguinte ordem em segundos:

  • 90 Moscou
  • 95 Paris
  • 101 São Paulo
  • 103 Santiago
  • 120 Nova York
  • 120 Madri
  • 120 Londres
  • 128 Hong Kong
  • 150 Cidade do México
  • 180 Berlim
  • 270 Xangai

Sendo assim, temo a seguinte média de Passageiros por KM de linha em milhões:

  • São Paulo – 9,9/ 611 milhões
  • Moscou – 8,6/2,4 milhões
  • Xangai 7/630,5 milhões
  • Cidade do México 6,9 /1,4 bilhão
  • Paris 6,6/1,4 bilhão
  • Hong Kong 4,9/866,8 milhões
  • Santiago 3,9/331 milhões
  • Nova York 3,1/1,4 bilhão
  • Berlim 3/466,4 milhões
  • Madri 2,8/657,4 milhões
  • Londres 2,2/1 bilhão

Sendo assim, SP trasporta 9,9 milhões de passageiros por KM de linha.

A pesquisa foi analizada com base nas 11 maiores redes de metro do mundo, conforme a ordem em inicio de operacões:

  • 1863 – Londres
  • 1900 – Paris
  • 1902 – Berlim
  • 1904 – Nova York
  • 1919 – Madri
  • 1935 – Moscou
  • 1969 – Cidade do México
  • 1974 – São Paulo
  • 1975 – Santiago
  • 1979 – Hong Kong
  • 1993 – Xangai

Essa foi uma excelente reportagem com caderno Metropole do Jornal o Estado de S. Paulo.

Minha conclusões são:

Apesar de super lotado, São Paulo ainda é referencia em diversos aspectos, como limpeza e seguranca. O usuário de metro vê isso no dia a dia, mas temos que melhorar muito.

O metrô de Santiago do Chile foi fundado em 1975, enquanto que em São Paulo foi em 1974, ou seja, São Paulo é um ano mais velho, mas mesmo assim. Santiago tem 83, 2 KM de metrô e 5,5 milhões de habitantes e São Paulo tem apenas 61,2 KM de metrô com 11 milhões de habitantes.

A reportagem cita ainda que embora o metrô tenha aumentado em 35% a oferta de lugares na ultima década, segundo os dados da reportagem, o ritmo de expansão é ainda lento. De 1974 até 2007, o metro de SP avançou 1,5 KM por ano. Mesmo que os planos do atual governador Serra se concretizarem, SP terá apenas 80,5 KM de linhas em 2010.

Os dados da reportagem pela CoMet, e o jornal Estado de S. Paulo teve acesso a uma parte dos dados coletados.

Agora fica um pergunta, eu que votei no PSDB para governo do estado, e sabendo que eles estão no governo quase 2 décadas, fica a afirmação: Precisamos urgente de um metro mais eficiente, para não apenas nos orgulharmos da segurança e limpeza.

Kleber Rodrigo de Carvalho