2020/2/25
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Cloud Definition - US Federal Government
Definition
• Cloud computing is a pay-per-use model for enabling available, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is comprised of five key characteristics, three delivery models, and four deployment models.
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云计算的技术背景
云计算是并行计算(Parallel Computing)、分布式 计算(Distributed Computing)和网格计算(Grid Computing)的发展,或者说是这些计算机科学概念的 商业实现。
云计算是虚拟化(Virtualization)、SOA(Service Oriented Architecture)等概念混合演进并跃升的结果。
Social Networking
Storage
Location-based Services