CLOUD COMPUTING TECHNOLOGY

       Cloud computing is one of the most popular latest technology. And in this article I will tell you What is Cloud computing actually ? And talking about today , all the corporation companies are focusing on the latest technology like cyber security , big data and cloud computing etc. And In this article I have try to explain in best way what is cloud computing? From where it is started ? 

       Now firstly start with the evolution of CLOUD COMPUTING :

   First of all let's talk about 1960-70 , when IBM has the complete monopoly and full control in this sector. They brought MAINFRAME . It is basically for commercial purpose for benefits of  normal public. Mainframe have high computing power and was of big size. So some major companies like NASA used this for solving their computation problem. And at that time normal public couldn't use mainframe and then comes DEC known as DIGITAL EQUIPMENT CORPORATION  made high development in 1980-85 in mini computers. C programming concept was started in 1980-85. And thereafter the actual scenario changed by INTEL . When Intel brought PCS means personal computer systems that we are using in today's time , it brought by Intel. They made chips , motherboard small in size. And because of that, what happened was that the general public also started using computers. And in this scenario C , C++ have became more popular .

           And thereafter , In 1990-95 Microsoft brought the full revolution .He developed a operating system Windows. It is also known as Client Server Architecture . And then CISCO developed such systems , hardware , software who brought the concept of INTERNET (1995-2000) . The whole world was connected with the internet. In 1995-2000, there was a huge revolution of internet and after it when we are talking about mobile phone . We all have listen the name of NOKIA , it brings a revolution in mobile world and thereafter In 2006 , the word CLOUD COMPUTING became more popular . Cloud computing was popularized by AMAZON'S ELASTIC COMPUTE.  And in 2008 , Google released the google app engine and the services like email using today it is actually the part of cloud computing .

DEFINITION OF CLOUD COMPUTING :  Cloud computing has multiple definitions . But the famous definition which is perfect by all aspect i.e 

     "THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST) defines cloud computing is a model for enabling ubiquitous convenient on demand network access to a shared pool of configuration computing resources (for example networks, servers, storage application and services ) that can be rapidly provisioned and released with minimal management efforts or service provider interaction . " 

 MEANING OF CLOUD COMPUTING : 

     Cloud computing is the mixer of Cluster and grid company. Cloud computing has multiple definitions but when we talk about cloud computing what I think that app and infrastructure over internet is known as Cloud computing . Any computation or any software don't want to get license of software for one or two years and if I want for two or four days , then you use simple like ORACLE  12 C is a project and want to design it and couldn't necessary to purchase the license and you can access it by the cloud with good connectivity of Internet. 

COMPUTER AS A SERVICE : APPLICATION OVER THE INTERNET.

UTILITY COMPUTING : " PAY AS YOU GO " DATA CENTER HARDWARE AND SOFTWARE.

      THREE NEW ASPECTS OF CLOUD COMPUTING :

1. The illusion of infinite computing resources available on demand.

2. The elimination of an upfront commitment by cloud users.

3. The ability to pay for use of computing resources on a short term basis as needed.

PLATFORMS : 

1. ON PREMISES SERVERS 

      a) Bring your own machines , connectivity , software etc.

        b) Complete control .

        c) Complete responsibility .

        d) Static capabilities .

        e) upfront capital cost for the infrastructure.

2. HOSTED SERVERS :

      a) Renting Machines , connectivity , software .

        b) Less control.

        c) Fewer Responsibility .

        d) Lower capital costs .

        e) More flexible.

        f) Pay for fixed capacity even if Idle .

3. CLOUD COMPUTING :

     a) Shared , multi-tenant infrastructure.

       b) Virtualized and Dynamic.

       c) Scalable and available .

       d) Abstracted from the infrastructure.

       e) Higher level services .

       f) Pay as you go.

ADVANTAGES OF CLOUD COMPUTING :

   1.  Cost efficiency

    2. Almost unlimited storage.

    3. Easy access of information.

    4. Backup and recovery

    5. Automobile software integration

    6. Quick deployment.

DISADVANTAGES OF CLOUD COMPUTING : 

   1. Internet connection

    2. Security concern

    3. No control on resources

    4. Depends on cloud providers

    5. Interoperability.

CLOUD COMPUTING SERVICES : 

PRIVATE CLOUDS : 

    1. Toyota

    2. Citi bank 

    3. Wal - mart

CLOUDS IN INTERNET : 

    1. Google

    2. Microsoft

    3. Sales force

    4. HP

    5. IBM 

SERVER REQUIREMENTS : 

1. HARDWARE NETWORK ALSO KNOWN AS INFRASTRUCTURE .

2. OPERATING SYSTEM ALSO KNOWN AS PLATFORM .

3. APPLICATION ALSO KNOWN AS SOFTWARE .

CHOICES FOR CLOUD COMPUTING : 

1. JUST INFRASTRUCTURE ( laaS example - Amazon)

2. INFRASTRUCTURE + PLATFORM (PaaS example - google , windows)

3. INFRASTRUCTURE + PLATFORM+ SOFTWARE (SaaS example - Google news)

Thanking you....