Author: Zen and the Art of Computer Programming
1 Introduction
Cloud Computing refers to the method of providing IT resources to users remotely through the network, allowing users to quickly obtain the required application services and resources without purchasing, installing and managing infrastructure such as servers. , cloud computing has become a general trend, and in recent years it is subverting the traditional IT service model. This article will analyze the development stages of cloud computing and its application models, and explain the origin, mission, characteristics, and advantages of cloud computing development, as well as some challenges and opportunities faced by modern IT companies. The article will describe in detail the core technologies, architecture, principles, and models of cloud computing, and discuss how to use these technologies and tools to improve organizational efficiency, reduce costs, save costs, and optimize resource utilization. Finally, some cloud computing development prospects and predictions of future IT enterprise development directions will also be presented.
2. Cloud Computing Overview
2.1. Cloud computing definition
Cloud computing is an Internet-based service model that uses the Internet to provide a universal computing platform and share resources through the network. It can automatically expand on demand and has high reliability, scalability, ease of use, and availability. Continuous characteristics. By leveraging the capabilities of network functions, computer technology, storage technology and infrastructure, cloud computing can realize virtualization, automatic elastic expansion, on-demand payment and other capabilities, thereby helping users use IT resources flexibly and efficiently and reduce IT technology costs. Improve service quality. Cloud computing can not only help individual consumers, small businesses, large enterprises and other organizations, but also provide computing, storage and network services to governments and non-profit organizations. With the development of cloud computing, it has become a milestone event in the field of information technology, promoting the development of emerging technologies such as big data, machine learning, and deep learning, and bringing revolutionary changes to ultra-large-scale multi-processor systems.
2.2. Cloud computing development stage
Cloud computing has been in a vigorous development stage since its birth. It has formed and evolved in multiple stages such as public and private cloud, private cloud, and hybrid cloud. It has experienced different levels of development such as IaaS, PaaS, and SaaS, and has now become the mainstream cloud computing model.