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Five months later, Rackspace Hosting and NASA initiated an open-source cloud-software project, OpenStack. This project aimed to facilitate organizations in offering cloud-computing services on standard hardware. The early codebase was sourced from NASA's Nebula platform and Rackspace's Cloud Files platform. [27] [28]
Gartner defines a hybrid cloud service as a cloud computing service that is composed of some combination of private, public and community cloud services, from different service providers. [64] A hybrid cloud service crosses isolation and provider boundaries so that it cannot be simply put in one category of private, public, or community cloud ...
Companies can cut costs with cloud communications services without sacrificing features. [4] The success of Google and others as cloud-based providers has demonstrated that a cloud-based platform can be just as effective as a software-based platform, but at a much lower cost. Voice services delivered from the cloud increases the value of hosted ...
In computer science, message passing is a technique for invoking behavior (i.e., running a program) on a computer.The invoking program sends a message to a process (which may be an actor or object) and relies on that process and its supporting infrastructure to then select and run some appropriate code.
The cloud outage lasted roughly 30 minutes, but took down the Web sites and services of many major Amazon cloud customers, including Netflix, Reddit and Foursquare. The issue happened in the networks that connect the Availability Zones to the Internet and was primarily caused by a software bug in the router.
Modern data centers must support large, heterogenous environments, consisting of large numbers of computers of varying capacities. Cloud computing coordinates the operation of all such systems, with techniques such as data center networking (DCN), the MapReduce framework, which supports data-intensive computing applications in parallel and distributed systems, and virtualization techniques ...
This exchange of messages is an example of inter-process communication. To communicate, the computers must have a common language, and they must follow rules so that both the client and the server know what to expect. The language and rules of communication are defined in a communications protocol. All protocols operate in the application layer ...
History of Internet components History of packet switching – a method of grouping data into packets that are transmitted over a digital network, conceived independently by Paul Baran and Donald Davies in the early and mid-1960s. History of communication protocols – the set of rules to enable data communication between computers on a network.