Thursday, October 4, 2012

IBM jobs for experienced Professionals

Hi friends,

For IBM Experienced jobs, u can check facebook page of my one of the colleague, prashantha here,

U can find the available jobs  on this page

Wednesday, October 3, 2012

Feature computing technologies

Hi friends. . 
       Now a days there is full environment of cloud computing, but here is something that u can find very interesting. u can read the following para to get to know what are all the new feature computing technologies, go through it.                   

         From the initial days of number-crunching by languages of FORTRAN, to the procedural methodology of Pascal or C, and later, the object-oriented paradigm of C++ and Java, we have come a long way. In this age of information overload, technologies that can just solve problems through steps and procedures are no longer adequate.
                     We need technology to detect complex patterns, trends, understand nuances in human language and to automatically solve problems. In this new era, the following three technologies are furthering the frontiers of computing technology:

Predictive analytics

By 2016, 130 exabytes will rip through the Internet. The number of mobile devices will exceed the human population this year, and by 2016, the number of connected devices will touch 10 billion.
Devices connected to the Net will range from cellphones, laptops, tablets, sensors and the millions of devices based on the ‘Internet of things’. A hot and happening trend in computing is the ability to make business and strategic decisions by determining patterns, trends and outliers among mountains of data. Predictive analytics will be a key discipline in our future and its experts will be much sought after.
Predictive analytics uses statistical methods to mine intelligence, information and patterns in structured, unstructured and streams of data. Predictive analytics will be applied across many domains, including banking, insurance, retail, telecom and energy.
There are also applications for energy grids and water management, besides those that determine user sentiment by mining data from social networks.

Cognitive computing

                   The most famous technological product in the domain of cognitive computing is IBM’s supercomputer, Watson, an artificial intelligence computer system capable of answering questions posed in natural language.
             Watson is best known for successfully trouncing a national champion in the popular U.S. TV quiz competition, Jeopardy. What made this victory more astonishing was that the supercomputer was able to decipher the nuances of natural language and pick the correct answer.
                   Following the success at Jeopardy, Watson has now been employed by a leading medical insurance firm in the U.S. to diagnose medical illnesses and recommend treatment options for patients. Watson will be able to analyse 1 million books, or roughly 200 million pages of information. Another well-known example of cognitive computing is Siri, the voice recognition app on the iPhone. The earlier avatar of cognitive computing was expert systems based on artificial intelligence. These expert systems were inference engines that were based on knowledge rules.
       The most famous among the expert systems were ‘Dendral’ and ‘Mycin’.

Autonomic computing

                  This is another computing trend that is set to become prevalent in the networks of tomorrow. Autonomic computing refers to the self-managing characteristics of a network. Typically, it signifies the ability of a network to self-heal in the event of failures or faults.
                   Autonomic network can quickly localise and isolate faults in the network while keeping other parts of the network unaffected. Besides, these networks can quickly correct and ‘heal’ the faulty hardware without human intervention. Autonomic networks are typical in smart grids where a fault can be quickly isolated and the network healed without resulting in a major outage in the electrical grid.
            These are truly exciting times in computing as we move towards true intelligence. 


Monday, September 24, 2012

Job in IBM

Hello friends,

You can search the available positions, openings in IBM for various fields by using following links - -

Click Here to search IBM job

 or Copy & paste the following link in your browser,

Check the facebook page of my friend prashantha here for more updates by click here

Search for the job, if matching job found, then u can apply directly by creating new account there,

Tuesday, September 11, 2012

Software testing as a career

HI friends, 
    We will take a quick look on software testing field, how u can career in this field.
                   The demand of software testers and mainly experienced testers is increasing year by year. Since testing is not dependent on any technology you always have some opening in testing. Also these days big companies are not giving project if you do not have a strong QA department. But having said that you still need to be very proactive and learn new tools and technology to grow your skills. But I guess that is part of all the IT jobs.

According to my knowledge:
  • Career in software testing has a great future. It is growing significantly in India. The reason being outsourcing of testing jobs is easier than development jobs to some extent.
  • Testing is also a concept and not dependent on any kind of technology so as you work in more and more projects your market value will increase. It does not depend on Java, .net etc.
  • In terms if growth in software testing career you can become a tester to test lead to test manager and from there to project manager. I have seen this growth path n number of time in my 14 years of testing career.
  • On site opportunity: well, as a manual tester this is something limited. However, if you learn some niche skills in testing such as automation, performance testing, back end mainframe testing, then there are lots of onsite opportunities.
  • Salary of a tester: there is a myth that salary of a tester is less than that of a developer and believe me people are just lying to you. There is no such thing. Based on your position and experience and of course negotiation skill that vary.
  • Skill upgrade: there will be lot of skill upgrade as u will change your domain
                    Regarding career path, there are several levels of software testing depending on acumen. Of course there are entry-level software testing positions. But those that wish to maximize their career as a will want to not only possess expert software testing skills, but seek some programming skills to take full advantage of advanced testing tools that exist today. The Test Manager position would be the next progression leap, requiring a focus on somewhat different skill sets.
                    In software testing field, ur career can grow in following ways
  • Test Manager path
  • Test architect path
  • Test Manager to Project manager
  • Test Manager to Director Testing
  • Test Manager to Sector head testing
 I tried to cover the things, best of my knowledge, if u have any point extra, u can suggest me

Saturday, September 8, 2012

mainframe for today & tomorrow

Hi friends - -

In this post i will discuss some of the important facts about mainframe, because of that only it is most popular in today's world, & hope for feature also..

                         Today, mainframe computers play a central role in the daily operations of most of the world's largest corporations, including many Fortune 1000 companies. While other forms of computing are used extensively in business in various capacities, the mainframe occupies a coveted place in today's e-business environment. In banking, finance, health care, insurance, utilities, government, and a multitude of other public and private enterprises, the mainframe computer continues to form the foundation of modern business.
                      The long-term success of mainframe computers is without precedent in the information technology (IT) field. Periodic upheavals shake world economies and continuous— often wrenching— change in the Information Age has claimed many once-compelling innovations as victims in the relentless march of progress. As emerging technologies leap into the public eye, many are just as suddenly rendered obsolete by some even newer advancement. Yet today, as in every decade since the 1960s, mainframe computers and the mainframe style of computing dominate the landscape of large-scale business computing.
Why has this one form of computing taken hold so strongly among so many of the world's corporations? In this section, we look at the reasons why mainframe computers continue to be the popular choice for large-scale business computing. The mainframe owes much of its popularity and longevity to its inherent reliability and stability, a result of continuous technological advances since the introduction of the IBM® System/360™ in 1964. No other computer architecture in existence can claim as much continuous, evolutionary improvement, while maintaining compatibility with existing applications.
                        The term mainframe has gradually moved from a physical description of IBM's larger computers to the categorization of a style of computing. One defining characteristic of the mainframe has been a continuing compatibility that spans decades.
I hope  i have covered most of the import thing about mainframe

Programming languages used in mainframe

Hello friends

    In this post i will discuss the various programming languages that are used for programing mainframe

                        A computer language is the way that a human communicates with a computer. It is needed because a computer works only with its machine language (bits and bytes). This is slow and cumbersome for humans to use. Therefore, we write programs in a computer language, which then gets converted into machine language for the computer to process.
             Mainframes started off with a single language but the number you can now find on big iron has exploded, and the division that used to exist between mainframe languages and those found on other platforms has almost vanished. So which languages are mainly used on a mainframe today, and why might you choose one over the other?

The various used languages are - -

  • Assembler
  • PL/I
  • C/C++
  • Java
  • REXX™
                     The most fundamental language is assembler, and you can still find assembler programs written over 50 years ago running on modern mainframes. It allows the programmer to address the hardware directly and so is hardware-dependent. This makes it fast, but hard to use and to debug, although IBM's high-level assembler HLASM does remove some of the development pain as it allows you to code using features more commonly found in high-level languages.
 Fortran is the granddaddy. Mainly used for scientific applications, it was developed by IBM in the 1950s, has been in continual use and development ever since, and remains a primary language for intensive supercomputing tasks. It is relatively easy to write an entirely portable program in Fortran, although outside of the scientific community it can be hard to find people with significant levels of Fortran programming experience. The latest version is Fortran 2008.
            Released shortly after Fortran, COBOL is more oriented towards business programming; the name is a contraction of COmmon Business-Oriented Language. Its strength is in data processing and its readability. This makes it hard to hide malicious COBOL code, and errors easier to spot. COBOL runs on every mainframe platform as well many smaller systems, and research firm Gartner reported in 1997 that 80 percent of the world's business ran on COBOL, with over 200 billion lines of code in existence and that an estimated five billion lines of new code are being added annually. As a result, COBOL skills are widespread and still quite easily found. Updated in 2002 to include support for object-orientation, critics say the language is over-verbose, but supporters argue that this intentional design makes the code easy to both write and maintain. This is especially important as a great deal of extant COBOL code is now quite old, and the original developers are likely to have moved on. And the future seems assured, as COBOL vendors continue to add features, such as Microsoft .NET functionality which provides a means to integrate COBOL with Windows' .NET framework.
              After the emergence of Fortran and COBOL, IBM developed PL/I (Programming Language One) in the 1960s with the aim of uniting the architectures and programming paradigms of business and scientific computing. Widely used in business data processing, PL/I supported and supports a range of ground-breaking endeavours, including the US Apollo space programme and Sabre, the airline reservation system. With the growth of PC, however, most of PL/I's advantages were overtaken by existing mainframe languages and by the emerging small systems languages such as C. IBM's competitors and customers saw little advantage in supporting or using either, and critics claimed that it was slow and complex to master. Although still in use, the mainstream has long since passed it by.
         No discussion of mainframe programming languages would be complete without a mention of Java. Increasing numbers of applications are being developed in Java because of its portability. It runs inside a Java Virtual Machine, which provides its portability, and applications written in this object-oriented, open-source language can run compiled and so quickly. Skill sets are widespread. Although more of a CPU and memory hog than C++, to whose syntax it bears strong similarities, if you can program in C++, Java is easy. So popular has Java become on the mainframe that IBM's justification for the introduction of the System z Application Assist Processor (zAAP) was to run Java applications cheaper and more efficient.
C++ is also widespread and available on a multitude of platforms but unlike Java, exposes low-level facilities. This means of course that it is not as portable as applications are likely to be reliant on OS-specific API calls. With care though, source code can be written to be platform-independent. Perhaps the most compact distinction between C++ and Java is that C++ is powerful and designed for a wide range of programming tasks, while Java was designed to be simple and easy to learn with a powerful cross-platform library. Its flexibility means that programming can be procedural or object-oriented.
             This is not and cannot be an exhaustive list of all available programming languages but I have included most languages in use by most developers today. Think I’ve missed your favourite mainframe programming language? Leave me a comment and let me know.

Friday, August 31, 2012

Mainframe offers big bucks

                    You wouldn't think crash courses can bring big bucks, and so quickly. But that's what crash courses in Mainframe computing are doing today.
       Mainframes are high-end servers are creating a huge requirement for talent across companies in India. And the reason is simple: A high-end Mainframe machine is like this one box that replaces over 70 servers.
            Typically, annual license for any branded server could cost upto $4,000 per annum. IBM's largest System z machine contains 54 processors in one box. Each of these processors runs at 540 mips (million instructions per second).
            Although there are other servers with more processors, the processor speeds and the mainframe architecture, which support massive, large-scale operations are the key differenciator.
           As more companies begin to understand the value of mainframes, the requirement for mainframe experts is expected to increase exponentially. Within 7 months after launching Mainframes in India, IBM has sold six machines to some of the top names in the business.
Companies adopting mainframes need to have a certain size and scale of operations. An entry-level mainframe with 7 processors is designed to replace about 40 servers.
Today, India has close to 3 lakh mainframe experts spread across various companies. Out of which IBM has highest, then TCS alone is said to have close to 15,000 mainframe professionals.
           According to N Ram Subramani, founder and CEO of Maples (one more good name for mainframe), an IT infrastructure solutions consulting firm, a one-time licence fee for each Mainframe machine could vary between $3.2 million to $9 million, while annual software and maintenance fee can cost a little over $1 million.
              IBM's latest Z990 machines, which it is offering for under Rs 90 lakh per machine for the first five customers in India as a promotional move, can replace nearly 100 servers.
"Unix has remained a religion in this country (Mainframes run on Java). Such initiatives are to erase false notions about mainframes," says Sreenath Chary, business unit executive, IBM SystemsZ.
       "A mainfame professional today commands a full 100% premium when compared to a Java programmer. IBM is looking at top educational institutions to introduce mainframe as part of the syllabus." 
                    Mainframes-related work from US too is heading towards India. Two reason for it as  "will result in mainframe projects moving to India. Problems concerning H1B visas are beginning to take its toll. Nearly 71% of US companies run on mainframes.
          Experts in this segment are mostly over 50 years of age and the younger generation is not taking up mainframes. Today, you pay $80-100 per hour for a mainframe expert in US, while offshoring it to India can cost $25-35. So, it is natural for more mainframe work to come to India for remote management."
   This is the reason why most of the IT firms prefer India for expanding their business.....
Source: TOI , IBM w3

Mainframe feature for students

Hello friends….
      Worried @ your career?  I can suggest one good option, not good according to me it’s a best, ….that is MAINFRAME .

                    After the event like 9/11, it is very important for all organizations so keep their data safe, specially its challenge in front of bank & trade centers.  Most of the organizations, not most I can say almost all,  are maintaining their data in mainframe.  If we are talking about all world data then “More than 70 percent of the world’s data still resides on mainframes. The market is growing in terms of revamping the older mainframes and adding new features and software to the oldies. Also, the new mainframes are smaller, cheaper, more powerful and e-business ready, so the market is growing steadily.”
            Now for maintaining this data, it is very important to find mainframe skilled workers in feature.  As I mentioned in one of my last post that about 70 to 80% mainframe workers are going to retire in next 5 years. So its again very big challenge for IT firms like IBM, HP etc to find the new skilled individuals. By keeping this thing in mind, IBM has  already taken few steps for this.
     IBM is now working with over 250 universities around the world to provide mainframe courses. The help comes in:
  • The creation of course material covering all the basics including ISPF, JCL, VSAM and Assembler, that all go back to the original 360 days, as well as the slightly newer z/VM, CICS and DB2 and finally the newer boy on the block, Linux.
  • The provision of mainframe resources either on the campus or as a shared worldwide resource so that student can try it for real and begin to understand the power and complexity of the environment.
  • Internships of six months or a year in IBM as part of a university course.
                          In India also, IBM have Mainframe labs in some of the top engineering institutes & universities. The only thing is that, it will be little costly, because mainframe ID cost very huge per hour.
         So frnds….start thinking about your career, take the right steps from today………good luck.

Friday, August 17, 2012

Why people don't like to buy Mainframe

Hello friends,

After lot of observations & reading I understood why people don't like to buy Mainframe, The Three Stupidest Reasons Why Not to Buy a Mainframe are
1. Mainframes cost too much.
2. We don’t have the skills needed to operate a mainframe environment.
  1. Mainframes are old technology.
    After learning how some of these people are actually running their IT environments, I’ve come to believe that these are three truly stupid reasons not to adopt mainframe technologies.
  1. Mainframes Cost Too Much?

Even though a mainframe can now be purchased for about $100,000 (the cost of some rack systems), IT buyers still believe that mainframe hardware is too expensive.
Really it is very costly, But we need to look at the advantages provided by mainframes over other IT infrastructure that is being normally used. Think about following advantages of mainframe

a. Management:
           Defiantly for operating the mainframe system we need skilled workers, but need less number of administrators because thousands of people work on the same server, Lets have look on following Example
A company serve 162 different customers-and over 3 million users-with six mainframe administrators." If you’re running a distributed computing environment, imagine how many IT systems, storage managers and administrators you’ll need to serve 3 million users! That number may well exceed 100 people. Now figure the cost for employee salary and benefits for all of those people, and suddenly mainframe pricing looks comparatively inexpensive.

b. Security:
             As I explained in the last post that the mainframe server is not hacked yet. It is highly impossible to hack the mainframe because the tight security provided by RACF, a security client.

c.  Consolidation/virtualization, reduced power consumption and real estate savings:

       By using the mainframes server it is highly possible to save manpower, power consumption & floor space. This is because virtualization is made possible by using mainframe. If we use mainframes then we may achieve 50 percent reduction in monthly Web hosting costs; an 80 percent reduction in data center floor space needs; significant power consumption savings; and huge savings in middle ware costs. Further, this executive saw a 50 percent reduction in hardware and OS support effort. 

2. Skill Issue with mainframes: 
                  The people using UNIX/Linux and Windows IT shops honestly believe that they don’t have the internal skills to operate a mainframe environment, and that is acceptable
          From last few years IBM has already taken an initiative for mainframes education. That is I am talking about IBM’s mainframe education initiative at this time was called the “zSeries Scholars Program” But, over the past two years, IBM has greatly expanded this program as part of its “Academic Initiative Program”, a program that now serves over 200 schools and universities around the world. And the company has set a goal, as part of its mainframe charter, to help the industry add 20,000 new mainframe skilled individuals by 2011.
  1. Mainframes Are "Old Technology"
                   Though mainframes is the older technology, but it is not possible for any computer & server to provide service like Mainframes, So though it is old, that is like Gold. Anyway we can interface mainframes to the latest web technologies & able to program mainframes using very modern languages like JAVA, J2EE instead of using COBOL. But the is easiest language & all banks who have mainframes use it. Now it is highly impossible to replace those codes with newer one, Because those programs contain lakhs of lines of code.

Summary Observations

                   IT buyers who look at mainframe TCO should find that mainframes are less expensive to operate than distributed systems environments, in part because of reduced staffing needs. Taken with the fact that mainframes are clearly not old technology, these three arguments hold no ground against exploring the possibility of mainframe implementation.

Thursday, August 16, 2012

Which Operating system is not Hacked Yet? ......That is mainframe

Hello friends,

The only operating System & server which is not hacked yet, & not possible  in feature also is MAINFRAME. That is why almost all the banks, Insurance companies, & those who are dealing with money, use to prefer mainframe only. That is the most secured server in the world. 

        As it is most secured. on the other hand it is very very much costly. In the survey it is found that banks spend nearly 70% of their expenditure on IT infrastructure.

                 Windows is an operating system started off as being meant for one user only, and they could run only one program at a time, and it was written to manage real devices in the PC, that is, it was limited to what the PC had.

                       When it was realised that this approach meant that programs which required more hardware capacity (like memory) could not be written, special routines that virtualised hardware had to be written. However, the underlying operating system files etc were all open to anyone who wanted to install software, that is, any programmer could overwrite system software causing malicious or unintended damage.The operating system grew organically and tries to mimic multi- user environment, virtualisation and allowing multiple programs at the same time etc, but this has been developed as additions and not designed from ground up. Hence the stability issues and issues of hacking because the entire system software etc was open for anybody to overwrite with their own code.

                                Mainframe OZ (zOS) on the other hand was written ground up to be virtual,multi user system, multi program system. The hardware was always virtualised and programmers do not deal with physical limitations of the system.

 Next, Operating system files and production code always was protected by the creation of a strict discipline and the creation of special libraries from which they could be run. This is controlled by system programmers.

          Application programs never replace operating system files unlike in Windows or UNIX (to a lesser extent).

         This created this environment never to be hacked to date.

                   If you want proof of this claim, consider what you can find by searching news archives and trade journals, looking for references to mainframes and data loss, hacking, security breaches, and similar topics. Recent research included checking the archives of ComputerWorld, InformationWeek, and The Wall Street Journal for reports of unauthorized access of any traditional mainframe environment via userid/ password exploitation, corruption of a mainframe-based networking resource, or contamination of a mainframe sys- tem software component.


Sunday, August 12, 2012

True Facts about Mainframe

Hello Dear Friends, 
     I am herewith some of the true & important facts @ Mainframe, Its Very Interesting & much more demanding. So some of the facts are as  
Mainframe facts.....!!!!!

1. All 25 of the world’s top banks still use mainframes, while 71 per cent of global Fortune 500 companies are mainframe clients as well. Additionally, nine out of the top 10 global health insurance providers process all of their high-volume transactions on a mainframe. This shows that, despite incursions being made by software as a service (SaaS) providers, an overwhelming majority of the world’s big business still value the reliability and security of mainframes, particularly for mission-critical functions.

2. Around 63 per cent of mainframe sites in the Asia-Pacific region believe the lack of skills in the current generation of mainframers is a major concern. In Europe, 66 per cent of mainframe sites believe mainframes are already suffering from a serious skills shortage.

3. About 72% of mainframe sites have mainframe staff eligible for retirement. (CA 2011)

4. The mainframes hold approximately " 70 % " of the entire data stored in this planet
5. The latest ones can support over 25,000 users
6. They can support devices spread over 26 miles using fibre optics
7. The size of the "basic" OS is about 14 GB
8. This OS comes in about 57 magnetic tapes, But latest with 4 tapes
9. It takes ATLEAST a month to install and customize a basic mainframe OS configuration
10. It takes around 3 full days for a mainframe to get up and running
11. Basic configuration for development environment costs 8 crores (hardware + Software)
12. A full team of qualified system operators are always required to be on stand by to ensure successful operation
13. Earlier mainframes were provided with cooling pipes through which cold water was passed to cool the system - TCS have one in Chennai facility
14. Recent mainframes have variable speed fans in the cabinet to keep it cool
15. Have u ever heard of a mainframe system being hacked??? Mainframes are one of the most secure data installations ever
16. You cannot buy the mainframe OS, but u'll have to pay a license to use it. The cost?? cool ......1.5 crores a year.
17. Finally, mainframes today r the most preferred data servers for even the most hi-fi of the organizations!
18. So far no virus has attacked Mainframes
    So this is how mainframe is...!!!!

Saturday, August 11, 2012

DB2 – faster than a speeding bullet?

DB2 – faster than a speeding bullet?

Last week, IBM sent out press releases saying that it has achieved the industry's highest ever TPC-C (transaction processing) benchmark using a Power Systems configuration with DB2, hitting 10,366,254 transactions per minute. And in case you don't realise just how fast that is, the press releases goes on to inform us that it beats HP's best result by more than 2.5 times and Oracle's best by more than 35%!

We're told that: "The results place IBM in a unique position as the undeniable leader. With these new clustered results (and with the long-standing single system result), IBM has demonstrated its ability to scale up to handle higher transaction loads and to scale out to optimize more types of workloads than the competition."

This result is the largest ever TPC-C result published (dated 17 August 2010) and was obtained on a cluster of three IBM Power 780 servers featuring a storage subsystem with 116TB of Solid State Drives (SSDs) and running DB2 9.7.

Just to rub in the fact that it beats the Old rival, Oracle, the press releases goes on to inform us that: "The IBM result represents 2.7 times better performance per core than the Oracle result, 41% better price performance, and 35% better energy efficiency per transaction. IBM's performance is also more than 2.5 times better than HP's best result, 69% greater performance per core, and 2.1 times better price/performance."

The new TPC-C benchmark result uses standard IBM software. DB2 9.7 has been around since June 2009, and AIX 6.1 was released in November 2007. IBM says that the selection of software versions reflected levels currently in use by a large number of their clients.

IBM highlights the fact that the IBM TPC-C results on POWER7 technology shows off IBM Storage technology in the form of Solid State Drives (SSDs), which enable higher throughput and lower response times. SSDs also provide reliability, lower energy usage, less cooling requirements, and the ability to reduce data centre footprints. The total storage used was over 800TB while the Oracle/Sun configuration had 686.6TB of total storage.

The Oracle/Sun cluster is 71% more expensive based on published price/performance relative to the IBM Power 780 cluster result. The total system cost of the Sun cluster is 26% greater than the total system cost of the IBM cluster. Because of different discount structures, care should be taken in comparing individual price components.

As a result of these differences, the TPC does not allow comparisons using TPC price information on anything other than the total configuration. The IBM Power 780 with DB2 9.7 result yields greater than 10 million tpmC for IBM (a feat Oracle hasn't accomplished) and significantly better price/performance for the IBM solution.

The configuration for this benchmark achieves an estimated consumption of 65.1 kWatts or 6.3 kWatts per million tpmC, 35% better than the Sun cluster energy consumption estimate of 73.9kWatts or 9.7 kWatts per million tpmC.

You get the idea anyway – there's more of the same in the press release. The bottom line is that IBM can now claim to provide performance in excess of double-digits (10 Million Transactions Per Minute), which, they say, no-one else can do.

Tuesday, July 24, 2012

after 3G and 4Gwht is there......its 5G comming soon

First (1G), second (2G), third (3G) and fourth (4G) generations of mobile technology are not new to us, however, 5G WiFi is, something that we got to hear in 2012-13.
Now the Question is What is 5G exactly? 

           5G WiFi refers to 802.11ac, the latest version of WiFi technology. 802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in 802.11a, 802.11b, 802.11g, and 802.11n versions.

            It is also termed as Gigabit WiFi since it is the first WiFi technology that is capable of offering peak data rates of 1 Gbps or more, even up to 3.6 Gbps, compared to the 600 Mbps peak data rate possible with 802.11n, aka N or Wireless-N, 11ac’s predecessor. Now, why it is called the 5G WiFi is because it is the fifth generation of the technology after 802.11a, 802.11b, 802.11g, and 802.11n.

      The first generation of WiFi 802.11a with 3Mbps speed was used during 1997-1998 period, the second generation, 802.11b, with 11 Mbps was used during 1999-2001, the third, 802.11g, with 54 Mbps was used from 2002 to 2006 and the fourth 802.11n with 600 Mbps was used from 2007 till 2011. Development of 802.11n began in 2002, but it took seven years for the finalization of this standard.
              It was Broadcom who first started using the term 5G WiFi when it launched its 802.11ac chips, early this year and also has a website dedicated for this.

Top 10 companies in IT services

World’s Top 10 brands / companies in IT services

Brand Finance, a company that specializes in brand valuation has recently announced World’s Top 10 brands in IT services. Among this list 3 Indian IT Companies are there, that’s a good news for Indian IT market.
Tata Consultancy Services (TCS) comes in at number 4 behind IBM, HP and Accenture. Infosys is fifth, followed by Cognizant at number 9 and Wipro at number 10.

Here’s the entire list of World’s Top 10 brands in IT services.
1)     IBM   —> Brand Value: $39.1 billion 2)     HP    —> Brand value: $21.7 billion
3)     Accenture   —> Brand value: $ 6.8 billion
4)     Tata Consultancy Services (TCS)  —> Brand value: $4 billion
5)     Infosys    —> Brand value: $3.6 billion
6)     Cap Gemini   —> Brand value: $2.8 billion
7)     Computer Services Corporation (CSC)  —> Brand value: $2.1 billion
8)     Atos Origin   —> Brand value: $2 billion
9)     Cognizant (CTS)    —> Brand value: $1.79 billion
10)    Wipro         —> Brand value: $1.76 billion

Source : NASSCOM

Friday, July 13, 2012

MultiSim - circuit Simulator free download

Hello friends,

   This is very nice software for Electronics engineers to work, For all your academic practicals & projects. This simulator contain micro controller IC's so that you can simulate any circuit containing micro controller or microprocessor.

What is multsim? 
This is the circuit simulator used for simulating the various types of analog & Digital circuits, Even it is possible to simulate the circuits of microcontroller circuits.
Multisim is the schematic capture and simulation application of National  Instruments Circuit Design Suite, a suite of EDA (Electronics Design  Automation) tools that assists you in carrying out the major steps in the  circuit design flow. Multisim is designed for schematic entry, simulation, and feeding to downstage steps, such as PCB layout.

Minimum System Requirements
To run NI Circuit Design Suite 11.0.1, National Instruments recommends  that your system meet or exceed the following requirements:
• Windows Vista/XP 32-bit editions.
• Windows Vista 64-bit edition.
• Windows 7 32-bit and 64-bit editions.
• 512 MB of memory (256 MB minimum).
• 1.5 GB of free hard disk space (1 GB minimum).
Steps to install MultiSim

Download all 5 parts by clicking on the following links

Save all them in single folder

Open any of the part, the screen like below given will appear

  • Click on Extract to
  • Give the specified path where you wish to save it
  • Now open the folder MultiSim 11.0.1 Ultiboard PowerPro + Crack Keygen
  • Install the application by using   NI_Circuit_Design_Suite_11_0_1.exe
  • Choose the option of trial version while installing.
  • Once you have installed multisim, use    kg_v1101 license generator.exe   for generating the license file
  • Open the lic generator

  • For full version press 2 & Enter
  • Now in the folder check for license files (.lic), Two license files will be generated
  • Now use these license files for activating the application
·         Click : Start button
§         Programs
§         National Instruments
§         NI  License Manager
§         Options
§         Install License File
§         Select  Multisim_PKG & Utiliboard_PKG license files from folder License Generator is located, then click OPEN
§         If “Do you want to overwrite?” Select YES
§         Close all Windows


Now you can enjoy the full version of multisim

One more software by National Instrument for  Instrumentation Purpose i.e LABVIEW. I will post it soon

Monday, March 26, 2012

Very Usefull links for ROBOT builder

Hello Everyone,

Here i am posting some of the important links that i came across before few days, related to robot building,
These links help u too much, just try each related link.

1. Electronics

1.1. General electronics sites

  • A collection of tutorials in electronics subjects. Well worth a look.
  •  A huge collection of links to other electronics sites, nicely indexed.
  •  Another excellent large collection of links to electronics and software sites.
  • A large resource of articles written by industry insiders, field service engineers, and semiconductor company engineers on a wide variety of electronics subjects.
  •  A personal page by an electronics enthusiast. Very entertaining stuff, as well as informative.
  • A circuit theory textbook online
  •  HVW Tech have many documents on a variety of electronics & robotics subjects on their site
  • Excellent optics resource and community
  • Excellent electronics resource and community

1.2. Electronics circuit archives

These sites offer archives of circuit diagrams. Most should be tested, but this is by no means guaranteed!

Electro Tech Online
Electro tech offers a great resource for discussing General Electronics, Electronic Projects, Robitics Chat and PIC/BASIC Programming. Electro Tech also offers Free Electronic Projects and Theory Articles.

1.3. Chip information

1.4. Electronics company information

1.5. PCB layout and manufacture

  • Eagle Layout Editor - The best free PCB design tool on the web. Superb. Free version is restricted to 10cm x 8cm size and no more than double sided but that still allows very complicated projects. Features schematic capture, extensive libraries, very good ripup-and-retry autorouter, user groups, extensive array of online public domain tools available for it.
  •  PCB Pool - Very good value PCB production house. For example, a double sided 10cm x 8cm PCB designed using Eagle above cost just £24 for a one-off including all P&P costs. Based in Ireland. Very helpful on the phone.
  •  ExpressPCB - A free PCB layout tool, with optional online manufacturing ordering (from USA). Cheap even though they come from the USA.
  •  PROTEUS Lite - A shareware PCB layout package. Better than ExpressPCB but no tied manufacturing service.
Proteus Lite at
  •  An excellent description of how to make your own PCBs. I did this stuff for 4 years and came to exactly the same conclusions as Mike has here. Making PCBs really isn't very hard these days now that most people have a PC which can run free layout software, and have a good printer that can print dark black onto transparencies.
  •  Another guide to making PCBs
  •  A method of building prototype circuits without making PCBs (and not using the dreaded Veroboard!). I'm not totally convinced by this method, personally I think it is always worth making a PCB. Using the techniques described in the links above, making PCBs is really quite easy.
  •  An article describing the effects bad PCB layout can have, particularly on analogue circuits. Essential reading if you are building your own speed controller!

1.6. Kits

  •  This Greek company sell battery charger kits.

1.7. MOSFETs

1.8. Optocouplers

  •  A few manufacturers of optocouplers. All have online datasheets:
 Agilent is the new name for Hewlett Packard Semiconductors.
 Infineeon is the new name for Siemens Semiconductors.
 Sharp are a big name in optoelectronics:
 Toshiba: ProductDetail&ProductID=2796

1.9. Electronic devices for robots

  •  Acroname make some pretty cool stuff including range finding and machine vision. Lots of technical article here too.
  •  An article describing range finding using the polaroid 6500 ranging module
  •  Using infra-red devices for range-finding.
  •  Robot vision - making your robot able to see!

1.10. Microcontrollers and development systems

  •  Quasar Electronics PIC programmer and Atmel ABR programmer
  •  The Atmel AVR series is popular amongst hobbyists.
  •  A couple of build-your-own PIC programmers:
  •  The Chip Directory section on microprocessors chronicles the development and describes a great many processors.
  •  ePanorama's microcontroller links section
  •  Rabbit Semiconductor make a clone Z80 microcontroller with a cheap development kit

1.11. Other useful electronics articles

  •  A beginners guide to what capacitors are
  •  All about capacitors. These devices are not as simple a you may think. An advanced guide.

2. Speed controllers

 4QD. Manufacturer of speed controllers. Has a lot of good technical info on the site too.
The Open Source Motor Controller project. A speed controller design & project.

 IFI Robotics. Manufacturer of speed controllers.
A description of electronic speed controllers

3. Motors, Solenoids, and Actuators

 Iskra. Manufacturer of electric motors. Includes sketchy performance characteristic graphs.

 Parvalux. Manufacturer of electric motors. No technical data that I can find.
 Litton. Manufacturer of electric motors and actuators. Includes comprehensive datasheets.
 Theory of starter motors. Quite a good page.
 Controlling voltage spikes (motor suppression). SGS Thomson Acrobat document.
Lynch. Manufacturer of electric motors. Characteristic graphs included. 
Using car windscreen wiper motors

4. Batteries
 A commercial battery charger manufacturer
 A commercial battery charger manufacturer. Not sure whether any of these are suitable for SLA batteries though, even though they say they are suitable for all lead acid batteries.
 A commercial battery charger manufacturer. Ths company manufacture a device which they purport will bring dead SLA batteries back to life.
 Ibex make battery chargers and gave lots of useful information on their site.
 US supplier of many types of batteries. Limited technical information.

5. Radio control

5.1. General interest sites

 A comprehensive introduction to using radio control on fighting robots.

 Loads of helpful articles, mainly about CB, which are still relevant to us.

 The Model Electronics Company site has some great stuff, presenting projects as well as commercial products.
 This radio ham has loads of useful information on his site
 Everything You NEVER Wanted To Know About Radios! Some technical inaccuracies to do with AM & FM bandwidth, but a reasonable introduction.
 The theory of superheterodyne (dual conversion) radio receivers
 The Panorama Electronics Link Site - Radio section. Loads of links to technical sites to do with radio communications, antennas, etc.
 The British Model Flying Association has some information on radio control.
 Low Power Radio Solutions sell telemetry modules. The CDP-02 from Circuit Design operates at 459MHz which is an allowable frequency for Robot Wars in teh UK.
 Some links to hobby radio control sites.
 A good RC information site version.htm
 The Radiocommunications Agency in the UK govern the frequency spectrum. This is the band of the spectrum that we are using.,1252,M942369080308,00.html
 This document from the Model Electronics Company describes all the model frequency bands
 If you are thinking about designing a 40MHz radio link yourself, like I was at one point, then Motorola produce this excellent IC (MC13310) which was designed for CT1 cordless phones that will operate at the 40MHz channel frequencies. Software for driving this chip is shown in the Embedded chapter in "Radio.c".

Motorola ICs
 Unfortunately Motorola no longer supply the above chip. However, a very similar IC, the UAA2062, is produced by Phillips
 A large site containing information on RC electronics

5.2. RC Receivers and Servos.

HVW Tech. Lots of technical information included.
 Information about the encoding of radio control radio sets
 Another page like that above
 A basic introduction to radio control servos
 Another Servo tutorial (in two parts)
 More in-depth information on RC servos
Some circuits for generating and receiving PPM RC signals
 Servo pinouts and connectors
 A three part tutorial in PPM radio control

5.3. Radio control hobby stores.

 Quick UK
 Sussex Model Centre
Tower Hobbies

5.4. Radio control equipment manufacturers

 Links to many RC electronics manufacturers
 Hitec. Manufacturer of RC sets.
 QuickUK supply 40MHz base loaded antennas:
 Novak. Manufacturer of ESCs and receivers
Airtronics. Manufacturer of RC sets.
 Futaba. Manufacturer of RC sets.

5.5. Radio interference.

Note that this section is specifically about interference problems in radio control modelling. All the comments in the EMC and radio sections also applies.
 An article about interference for RC plane flyers.
This model club has a page on radio interference and tips on how to reduce the problem.
Technobots supply products to robot builders, and have this excellent help page for EMC.

5.6. Antenna.

 Capacity hat antenna used by a competitor
 Quick UK supply 40MHz antennas which are rather hard to get hold of. Part no H5330
 Flair products also sell 40MHz antennas. Part no MX75119.
 Radio tech manufacture antennas for the 459MHz band. Part nos Hel-458 and 1/4-458

Very soon i will post some of the books related to robotics