Cloud History Flashcards
1950s: The Beginnings
Notes - 1950s - Mainframe Era
Mainframes with high processing power introduced.
Concept of Time-Sharing/Resource Pooling: Multiple users accessing a single mainframe.
1970s: The Rise of Virtualization
Notes - 1970s - Virtualization Emerges
Introduction of Virtual Machine (VM) Operating Systems.
Mainframes could host multiple VMs, simulating separate computing environments on the same hardware.
Late 20th Century: Hardware and Internet Developments
Notes - Late 20th Century - Server Virtualization
Shift towards virtualized servers due to high hardware costs and internet growth.
Development of shared hosting, virtual private servers, and virtual dedicated servers.
Hypervisors and Shared Resources
Notes - Hypervisors - Resource Management
Introduction of hypervisors: software allowing multiple OS to run on a single physical server.
Hypervisors manage resource allocation, maintaining isolation and security among VMs.
The Birth of Modern Cloud Computing
Notes - Modern Cloud Computing
Emergence of Pay-as-You-Go/Utility Computing Model: Users pay only for the resources they use.
Transition from Capital Expenditure (CapEx) to Operational Expense (OpEx) model.
Enhanced scalability and flexibility, allowing resource scaling based on demand.
Cloud Services Providers
IBM Cloud, Google Cloud, Microsoft Azure, AWS (Amazon Web Services), Oracle Cloud, Salesforce, Alibaba Cloud, SAP