What is Cloud Computing?
What is Cloud Computing?
Cloud computing refers to the delivery of computing services—including storage, processing power, and software—over the internet, rather than relying on local servers or personal devices like hard drives. These services are hosted on remote servers, often distributed globally, and can be accessed by users anywhere with an internet connection. Cloud computing enables real-time data access, sharing, and collaboration among various stakeholders.
Key Features
- Remote Data Storage: Instead of relying on physical storage devices, cloud computing stores data on remote servers that are accessible over the internet.
- Real-Time Access and Collaboration: Cloud services allow users to access, manage, and share data in real-time, enhancing collaboration and productivity.
- Middleware: This software layer ensures smooth communication and data exchange between different devices, systems, and platforms, allowing seamless operation across various environments.
Evolution of Cloud Computing
While cloud computing has gained significant popularity in recent years, its origins can be traced back to the 1960s when it was first conceptualized by Joseph Carl Robnett. Since then, it has evolved to become a vital component of modern technology infrastructure.
Types of Cloud Services (IaaS, PaaS, SaaS)
Cloud computing can be categorized into three primary service models:
- IaaS (Infrastructure as a Service): Provides virtualized computing resources over the internet, such as virtual machines and storage.
- PaaS (Platform as a Service): Offers a platform that allows developers to build, run, and manage applications without the complexity of managing underlying infrastructure.
- SaaS (Software as a Service): Delivers software applications via the internet, where users can access them on a subscription basis without needing to install or maintain them on local devices.
Cloud Deployment Models: Public, Private, Hybrid
Cloud computing deployment models define how cloud resources are made available to users. This chapter explores the different deployment models—public, private, and hybrid—and the benefits of each.
Public Cloud: Hosted by a third-party provider and shared across multiple customers.
Private Cloud: Dedicated infrastructure for a single organization.
Hybrid Cloud: A mix of public and private cloud systems, offering greater flexibility and optimization.
Choosing the Right Deployment model for your business.
Cloud computing has transformed how businesses and individuals store and access data, making it easier to scale operations and collaborate across geographies.
Characteristics of Cloud Computing
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