Your Knowledge Base about Cloud Computing

Cloud Lexicon

From scalable cloud servers to cloud email applications, we understand that grasping the entire concept of cloud computing can be daunting. We designed the ProfitBricks lexicon to be a simple go-to source for education on different cloud offerings. With a better knowledge, users may select which aspect of cloud computing is most suited for their business needs, whether it is IaaS, PaaS, SaaS, or cloud storage. Please browse through the topics below and click the link underneath each to learn more.

What is Infrastructure as a Service (IaaS)?

Infrastructure as a Service (IaaS for short) is the backbone of cloud computing. Rather than purchasing an expensive datacenter, labor, real estate, and all of the utilities to maintain it, users rent space in a virtual data center from an IaaS provider. They have access to the virtual data center via the Internet, known as the cloud. This segment of cloud computing provides the raw materials for IT, and users only pay for the equipment they use, including (but not limited to) CPU cores, RAM, hard disk space, and data transfer; think ProfitBricks, Amazon EC2, or Rackspace Cloud. All three providers allow users to rent virtual servers.

What is Platform as a Service (PaaS)?

Platform-as-a-service (PaaS) is a solution for building, testing, deploying and managing custom-built applications in the cloud. This vertical of cloud computing is gaining momentum because it allows developers to focus solely on application development. With PaaS, there is no need to buy, configure, or manage the underlying infrastructure; PaaS providers often partner with IaaS providers to host their platform(s) on the infrastructure backbone from development to deployment.

What is Software as a Service (SaaS)?

SaaS, or Software as a Service, describes the processes of using software online through cloud computing instead of purchasing and installing it on a local computer hard drive. SaaS products can be broken up into consumer and enterprise segments. Common SaaS applications for consumer use are Gmail or Google Docs, both free of charge and accessible through a web browser. Some popular SaaS applications for enterprise use are Netsuite and, which help companies more efficiently run segments of their business.