What are the cloud computing platforms? Introduction of several cloud computing platforms

Cloud computing (cloudcompuTIng) is an add-on, use, and delivery model of Internet-based related services that typically involves providing dynamically scalable and often virtualized resources over the Internet. Cloud is a metaphor for the Internet and the Internet. In the past, the cloud was often used to represent the telecommunication network, and later used to represent the abstraction of the Internet and the underlying infrastructure. As a result, cloud computing can even make you experience 10 trillion operations per second, with such powerful computing power to simulate nuclear explosions, predict climate change, and market trends. Users access the data center through computers, laptops, mobile phones, etc., and perform calculations according to their own needs.

Cloud computing can be considered to include the following levels of services: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

Infrastructure-as-a-Service (Infrastructure-as-a-Service): Infrastructure as a Service. Consumers can get services from a complete computer infrastructure over the Internet. For example: hardware server lease.

Platform-as-a-Service (Platform-as-a-Service): Platform as a Service. PaaS actually refers to the platform for software development as a service, submitted to users in the SaaS model. Therefore, PaaS is also an application of the SaaS model. However, the emergence of PaaS can accelerate the development of SaaS, especially to speed up the development of SaaS applications. For example: personalized customization of software.

Software-as-a-Service (SaaS): Software as a Service. It is a model for providing software over the Internet. Instead of purchasing software, users rent Web-based software from providers to manage business operations. For example: Sunshine Cloud Server.

(1) AbiCloud (Abiquo) AbiCloud is an open source cloud computing platform for companies that enables companies to create and manage large, complex IT infrastructures (including virtual servers, networks) in a fast, simple, and scalable manner. , applications, storage devices, etc.)

(2) Hadoop (Apache Foundation) This program is an open source project that completely mimics the Google architecture, including Map/Reduce and HDFS file systems.

(3) The Eucalyptus project (University of California) created an open source interface that enables businesses to use their internal IT resources (including servers, storage systems, network devices) to build a cloud that is compatible with Amazon EC2

(4) MongoDB (10gen) MongoDB is a high-performance, open source, modeless document database that can be used to replace traditional relational databases or key/value storage methods in many scenarios.

(5) Enomalism flexible computing platform It provides a cloud computing framework similar to EC2. Enomalism is based on Linux and supports both Xen and KernelVirtualMachine (KVM). Unlike other pure IaaS solutions, Enomalism provides a software stack based on the TurboGearsWeb application framework and Python.

(6) Nimbus (grid middleware Globus) Nimbus for scientific computing needs, through a set of open source tools to implement infrastructure as a service (IaaS) cloud computing solutions

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