The three eras of cloud computing development are:

Cloud Native 1.0: Infrastructure cloud native, basically a replacement or expansion and extension of IT;

Cloud Native 2.0: Application cloud native, the birth of many cloud native-based systems, they are based on container development, use Kubernetes for scheduling, profoundly changed the form of cloud operating systems;

Cloud Native 3.0: Cloud, network and end synchronous development, integration.

The three eras are:

Infrastructure era: From 2006 to 2010, cloud computing companies represented by Amazon Web Services (AWS) began to provide infrastructure services such as computing, storage and networking.

Platform era: From 2010 to 2015, cloud computing companies began to provide higher-level services such as databases, application development and deployment platforms. Representative companies of this era include Microsoft Azure, Google Cloud Platform and Salesforce.

Application era: From 2015 to date, cloud computing companies have begun to provide more complex services such as artificial intelligence, machine learning and the Internet of Things. Representative companies of this era include Amazon, Microsoft, Google and IBM.

The development of cloud computing can be roughly divided into three eras:

1. Infrastructure as a Service (IaaS) - In this era, cloud computing mainly provides basic computing, storage, network and other infrastructure services, and users need to build and configure the application environment by themselves.

2. Platform as a Service (PaaS) - In this era, cloud computing provides some development platforms, based on which users can quickly build, develop and deploy applications. Using these platforms can greatly reduce the development and deployment costs of applications and improve development efficiency.

3. Software as a Service (SaaS) - In this era, cloud computing provides a variety of applications, including enterprise applications, CRM, ERP, online collaborative office, etc. Users can directly access these applications through the Internet without purchasing or installing software.