Introduction to cloud computing Michael Wekesa 

What is cloud computing? Computers in the cloud! IT Chifu 

The delivery of various services over the Internet is known as cloud computing. Companies choose to access their computational power over the internet, or the cloud, and pay for it as they use it, rather than investing extensively in databases, software, and hardware. 

You're probably leveraging a cloud service and you don't know it yet! IT Chifu 

Cloud Big some players in cloud computing 

Benefits cloud computing! Cost - eliminate capital expenses Speed - instantly provision space for development and testing Global scale - scale elastically Productivity - increased collaboration, predictable performance, and customer isolation Performance - better price/performance for cloud native workloads Reliability - fault-tolerant, scalable, distributed systems across all services IT Chifu There's someone to blame W hen server is dow n 

Types of cloud computing Private Clouds Public Clouds Hybrid Clouds MultiClouds IT Chifu Nimbus CLouds - They bring rain 

Private clouds are cloud environments that are completely dedicated to a single end user or group, and are often run behind that user's or group's firewall. 

Public clouds are cloud environments typically created from IT infrastructure not owned by the end user. Some of the largest public cloud providers include Alibaba Cloud, Amazon Web Services (AWS), Google Cloud, IBM Cloud, and Microsoft Azure. 

A hybrid cloud is a unified IT system made up of several environments linked through LANs, WANs, VPNs, and APIs. 

Multiclouds are cloud architectures that combine many cloud services from multiple cloud vendors, whether public or private. Not all multiclouds are hybrid clouds, and not all hybrid clouds are multiclouds. When various clouds are coupled through some type of integration or orchestration, they become hybrid clouds. IT Chifu Many Clouds 

Types of cloud services 

SaaS is a service that provides users with access to a software application that is managed by the cloud service provider. SaaS apps are typically web applications or mobile apps that may be accessed through a web browser. Software as a Services Slack 

PaaS indicates that an outside cloud service provider that provides and manages the hardware and application-software platform, but the user is responsible for the programs that run on top of the platform and the data that the apps rely on. Plartform as a Services 

Through an internet connection, a cloud service provider maintains your infrastructure—the physical servers, network, virtualization, and data storage. The user rents the infrastructure and gets access to it via an API or dashboard. Infrastructure as a Service GCE AWS EC2 

IT Chifu Yeah! right 

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