What is Cloud Computing?
The hottest emerging concept that has the power to change how we perform tasks is taking place before us – and it is Cloud Computing. Simply put, it is the ability to use resources and tools via the Internet without actually owning or being near them. The only requirement is to be able to access them. Certainly no one can doubt that Cloud Computing and the next generation of the Internet has had a dramatic affect on how people interact and connect with each other – both from an individual standpoint and a business one.
The term ‘Cloud’ is used to indicate the whole of computing services accessible via the Internet. It is an all-encompassing description of the complex internet-connected networks that exist in datacenters all over the world that power services and applications behind the scenes.
Examples of Cloud Computing services you probably already use.
The concept of utilizing resources in these networks is being adopted by businesses both large and small. These resources are categorized to describe their function, and include:
- Infrastructure as a Service (IaaS)
- Platform as a Service (PaaS)
- Software as a Service (SaaS)
- Web 2.0
In the most general terms, Infrastructure as a Service means that companies may no longer need to own and house their own back-end servers and other network computing infrastructure besides an internet-connected PC or laptop in order to maintain business functionality. This capability can be purchased on a subscription basis from entities that market these services in a ‘virtual’ manner. This allows businesses to keep their costs low by not having to purchase, maintain and recycle their own equipment for this purpose, and also mitigates the possibility of business interruption due to the highly available nature of these solutions. This equates to increased uptime and profitability for Infrastructure as a Service customers.
Platform as a Service is also known as ‘cloudware’, and refers to the availability of development tools in creating web applications and services to the end user. Like IaaS, you never ‘see’ the inner-workings of this environment unless you are a computer programmer or IT resource, but it exists nonetheless and again affords those who use these tools the ability to reduce costs while running their businesses.
Sofware as a Service is defined as software applications that are subscribed to and accessed only through the Internet, and not installed on local PCs or laptops. Applications built by and accessed via Google fall into this category, as well as the many photo sites to which you can upload your pictures and videos, edit and share them with others. These solutions are gaining tremendous popularity, because end users do not need to install, update and maintain software locally – only connect to it and use it when the need arises.
Web 2.0 describes the whole of the social networking movement on the Internet, and includes but is not limited to destinations such as Facebook, MySpace, LinkedIn and Twitter. These sites offer the ability for people all over the world to share common interests, stay connected and learn more about each other – and these sites aren’t just for the young. Statistics show that the over 50 generation is logging onto these sites in greater numbers than ever before. In fact, in one month alone, Facebook adds over 17,000 new members.
The next time you are on the Internet and upload a photograph and use the online tools to modify that picture, you are participating in ‘cloud computing.’ The picture is probably loaded to a site that uses IaaS for their servers, PaaS in order to provide the visual interface in which you modify the photograph, and SaaS applications you’ll use to access your email program and social networking sites in order to send it to or post it for those with whom you would like to share the picture.