![]() ![]() In most cases, SaaS users pay a monthly or annual subscription fee some may offer ‘pay-as-you-go’ pricing based on your actual usage. SaaS-also known as cloud-based software or cloud applications-is application software that’s hosted in the cloud and that you access and use via a web browser, a dedicated desktop client, or an API that integrates with your desktop or mobile operating system. However, there is often confusion among the three and what’s included with each: SaaS (Software-as-a-Service) IaaS (Infrastructure-as-a-Service), PaaS (Platform-as-a-Service), and SaaS (Software-as-a-Service) are the three most common models of cloud services, and it’s not uncommon for an organization to use all three. According to a recent survey, 92% of organizations use cloud today (link resides outside IBM), and most of them plan to use it more within the next year. If you use a computer or mobile device at home or at work, you almost certainly use some form of cloud computing every day, whether it’s a cloud application like Google Gmail or Salesforce, streaming media like Netflix, or cloud file storage like Dropbox. traditional IT infrastructure and offer the same self-service and agility to their end-users. Not surprisingly, many corporations have adopted the cloud delivery model for their on-premises infrastructure so they can realize maximum utilization and cost savings vs. Virtualization enables cloud providers to make maximum use of their data center resources. For example, a single hardware server can be divided into multiple virtual servers. This includes some form of virtualized IT infrastructure-servers, operating system software, networking, and other infrastructure that’s abstracted, using special software, so that it can be pooled and divided irrespective of physical hardware boundaries. The term ‘cloud computing’ also refers to the technology that makes cloud work. You can also take advantage of your cloud provider’s global network to spread your applications closer to users around the world.
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