Gartner defines public cloud computing as "a style of computing where scalable and elastic IT-enabled capabilities are provided as a service to external customers using Internet technologies—i.e., public cloud computing uses cloud computing technologies to support customers that are external to the provider’s organization.". Shadow IT is even harder to control, since cloud computing lets you build rogue systems completely out of sight. Cloud computing is the on-demand availability of computer system resources, especially data storage (cloud storage) and computing power, without direct active management by the user.The term is generally used to describe data centers available to many users over the Internet. The public cloud is a cloud service hosted by third-party cloud service providers on hardware shared by multiple customers.. Public cloud storage is easy to deploy through a web portal managed by the cloud provider or through a marketplace offering, such as the AWS Marketplace. Public Cloud. Bring Azure services and management to any infrastructure, Put cloud-native SIEM and intelligent security analytics to work to help protect your enterprise, Build and run innovative hybrid applications across cloud boundaries, Unify security management and enable advanced threat protection across hybrid cloud workloads, Dedicated private network fiber connections to Azure, Synchronize on-premises directories and enable single sign-on, Extend cloud intelligence and analytics to edge devices, Manage user identities and access to protect against advanced threats across devices, data, apps, and infrastructure, Azure Active Directory External Identities, Consumer identity and access management in the cloud, Join Azure virtual machines to a domain without domain controllers, Better protect your sensitive information—anytime, anywhere, Seamlessly integrate on-premises and cloud-based applications, data, and processes across your enterprise, Connect across private and public cloud environments, Publish APIs to developers, partners, and employees securely and at scale, Get reliable event delivery at massive scale, Bring IoT to any device and any platform, without changing your infrastructure, Connect, monitor and manage billions of IoT assets, Create fully customizable solutions with templates for common IoT scenarios, Securely connect MCU-powered devices from the silicon to the cloud, Build next-generation IoT spatial intelligence solutions, Explore and analyze time-series data from IoT devices, Making embedded IoT development and connectivity easy, Bring AI to everyone with an end-to-end, scalable, trusted platform with experimentation and model management, Simplify, automate, and optimize the management and compliance of your cloud resources, Streamline Azure administration with a browser-based shell, Stay connected to your Azure resources—anytime, anywhere, Simplify data protection and protect against ransomware, Your personalized Azure best practices recommendation engine, Implement corporate governance and standards at scale for Azure resources, Manage your cloud spending with confidence, Collect, search, and visualize machine data from on-premises and cloud, Keep your business running with built-in disaster recovery service, Deliver high-quality video content anywhere, any time, and on any device, Build intelligent video-based applications using the AI of your choice, Encode, store, and stream video and audio at scale, A single player for all your playback needs, Deliver content to virtually all devices with scale to meet business needs, Securely deliver content using AES, PlayReady, Widevine, and Fairplay, Ensure secure, reliable content delivery with broad global reach, Simplify and accelerate your migration to the cloud with guidance, tools, and resources, Easily discover, assess, right-size, and migrate your on-premises VMs to Azure, Appliances and solutions for data transfer to Azure and edge compute, Blend your physical and digital worlds to create immersive, collaborative experiences, Create multi-user, spatially aware mixed reality experiences, Render high-quality, interactive 3D content, and stream it to your devices in real time, Build computer vision and speech models using a developer kit with advanced AI sensors, Build and deploy cross-platform and native apps for any mobile device, Send push notifications to any platform from any back end, Simple and secure location APIs provide geospatial context to data, Build rich communication experiences with the same secure platform used by Microsoft Teams, Connect cloud and on-premises infrastructure and services to provide your customers and users the best possible experience, Provision private networks, optionally connect to on-premises datacenters, Deliver high availability and network performance to your applications, Build secure, scalable, and highly available web front ends in Azure, Establish secure, cross-premises connectivity, Protect your applications from Distributed Denial of Service (DDoS) attacks, Satellite ground station and scheduling service connected to Azure for fast downlinking of data, Protect your enterprise from advanced threats across hybrid cloud workloads, Safeguard and maintain control of keys and other secrets, Get secure, massively scalable cloud storage for your data, apps, and workloads, High-performance, highly durable block storage for Azure Virtual Machines, File shares that use the standard SMB 3.0 protocol, Fast and highly scalable data exploration service, Enterprise-grade Azure file shares, powered by NetApp, REST-based object storage for unstructured data, Industry leading price point for storing rarely accessed data, Build, deploy, and scale powerful web applications quickly and efficiently, Quickly create and deploy mission critical web apps at scale, A modern web app service that offers streamlined full-stack development from source code to global high availability, Provision Windows desktops and apps with VMware and Windows Virtual Desktop, Citrix Virtual Apps and Desktops for Azure, Provision Windows desktops and apps on Azure with Citrix and Windows Virtual Desktop, Get the best value at every stage of your cloud journey, Learn how to manage and optimize your cloud spending, Estimate costs for Azure products and services, Estimate the cost savings of migrating to Azure, Explore free online learning resources from videos to hands-on-labs, Get up and running in the cloud with help from an experienced partner, Build and scale your apps on the trusted cloud platform, Find the latest content, news, and guidance to lead customers to the cloud, Get answers to your questions from Microsoft and community experts, View the current Azure health status and view past incidents, Read the latest posts from the Azure team, Find downloads, white papers, templates, and events, Learn about Azure security, compliance, and privacy. They may be free or sold on-demand, allowing customers to pay only per usage for the CPU cycles, storage, or … Cloud computing, especially public cloud computing, isn’t without problems. Full access to explore any service you want. Bring Azure services and management to any infrastructure, Put cloud-native SIEM and intelligent security analytics to work to help protect your enterprise, Build and run innovative hybrid applications across cloud boundaries, Unify security management and enable advanced threat protection across hybrid cloud workloads, Dedicated private network fiber connections to Azure, Synchronise on-premises directories and enable single sign-on, Extend cloud intelligence and analytics to edge devices, Manage user identities and access to protect against advanced threats across devices, data, apps, and infrastructure, Azure Active Directory External Identities, Consumer identity and access management in the cloud, Join Azure virtual machines to a domain without domain controllers, Better protect your sensitive information—anytime, anywhere, Seamlessly integrate on-premises and cloud-based applications, data and processes across your enterprise, Connect across private and public cloud environments, Publish APIs to developers, partners, and employees securely and at scale, Get reliable event delivery at massive scale, Bring IoT to any device and any platform, without changing your infrastructure, Connect, monitor and manage billions of IoT assets, Create fully customisable solutions with templates for common IoT scenarios, Securely connect MCU-powered devices from the silicon to the cloud, Build next-generation IoT spatial intelligence solutions, Explore and analyse time-series data from IoT devices, Making embedded IoT development and connectivity easy, Bring AI to everyone with an end-to-end, scalable, trusted platform with experimentation and model management, Simplify, automate and optimise the management and compliance of your cloud resources, Streamline Azure administration with a browser-based shell, Stay connected to your Azure resources—anytime, anywhere, Simplify data protection and protect against ransomware, Your personalised Azure best practices recommendation engine, Implement corporate governance and standards at scale for Azure resources, Manage your cloud spending with confidence, Collect, search and visualise machine data from on-premises and cloud, Keep your business running with built-in disaster recovery service, Deliver high-quality video content anywhere, any time and on any device, Build intelligent video-based applications using the AI of your choice, Encode, store, and stream video and audio at scale, A single player for all your playback needs, Deliver content to virtually all devices with scale to meet business needs, Securely deliver content using AES, PlayReady, Widevine and Fairplay, Ensure secure, reliable content delivery with broad global reach, Simplify and accelerate your migration to the cloud with guidance, tools and resources, Easily discover, assess, right-size and migrate your on-premises VMs to Azure, Appliances and solutions for data transfer to Azure and edge compute, Blend your physical and digital worlds to create immersive, collaborative experiences, Create multi-user, spatially aware mixed reality experiences, Render high-quality, interactive 3D content and stream it to your devices in real time, Build computer vision and speech models using a developer kit with advanced AI sensors, Build and deploy cross-platform and native apps for any mobile device, Send push notifications to any platform from any back end, Simple and secure location APIs provide geospatial context to data, Build rich communication experiences with the same secure platform used by Microsoft Teams, Connect cloud and on-premises infrastructure and services to provide your customers and users the best possible experience, Provision private networks, optionally connect to on-premises datacenters, Deliver high availability and network performance to your applications, Build secure, scalable and highly available web front ends in Azure, Establish secure, cross-premises connectivity, Protect your applications from Distributed Denial of Service (DDoS) attacks, Satellite ground station and scheduling service connected to Azure for fast downlinking of data, Protect your enterprise from advanced threats across hybrid cloud workloads, Safeguard and maintain control of keys and other secrets, Get secure, massively scalable cloud storage for your data, apps and workloads, High-performance, highly durable block storage for Azure Virtual Machines, File shares that use the standard SMB 3.0 protocol, Fast and highly scalable data exploration service, Enterprise-grade Azure file shares, powered by NetApp, REST-based object storage for unstructured data, Industry leading price point for storing rarely accessed data, Build, deploy, and scale powerful web applications quickly and efficiently, Quickly create and deploy mission critical web apps at scale, A modern web app service that offers streamlined full-stack development from source code to global high availability, Provision Windows desktops and apps with VMware and Windows Virtual Desktop, Citrix Virtual Apps and Desktops for Azure, Provision Windows desktops and apps on Azure with Citrix and Windows Virtual Desktop, Get the best value at every stage of your cloud journey, Learn how to manage and optimise your cloud spending, Estimate costs for Azure products and services, Estimate the cost savings of migrating to Azure, Explore free online learning resources from videos to hands-on-labs, Get up and running in the cloud with help from an experienced partner, Build and scale your apps on the trusted cloud platform, Find the latest content, news and guidance to lead customers to the cloud, Get answers to your questions from Microsoft and community experts, View the current Azure health status and view past incidents, Read the latest posts from the Azure team, Find downloads, white papers, templates and events, Learn about Azure security, compliance and privacy. Public cloud infrastructure-as-a-Service (IaaS) delivers compelling benefits like scalability, availability and elasticity. Full access to explore any service you want. While security concerns have been raised over public cloud environments, when implemented correctly, the public cloud can be as secure as the most effectively managed private cloud implementation if the provider uses proper security methods, such as intrusion detection and prevention systems (IDPS). A powerful, low-code platform for building apps quickly, Get the SDKs and command-line tools you need, Use the development tools you know—including Eclipse, IntelliJ, and Maven—with Azure, Continuously build, test, release, and monitor your mobile and desktop apps. The computing functionality may range from common services such as email, apps and storage to the enterprise-grade OS platform or infrastructure environments used for software development and testing. This type of storage exists on a remote cloud server and is accessible over the internet under a subscription-based utility billing method where the users pay only for the storage capacity being used. Cloud computing is a style of computing in which resources are made available over the internet. Any organization could sign up to use it. Moreover, there are public clouds which make the operation a more efficient one.