Microsoft Azure


Microsoft Azure, sometimes stylized Azure, and formerly Windows Azure, is the cloud computing platform developed by Microsoft. It offers management, access and development of applications and services to individuals, companies, and governments through its global infrastructure. It also provides capabilities that are usually not included within other cloud platforms, including software as a service, platform as a service, and infrastructure as a service. Microsoft Azure supports many programming languages, tools, and frameworks, including Microsoft-specific and third-party software and systems.
Azure was first introduced at the Professional Developers Conference in October 2008 under the codename "Project Red Dog". It was officially launched as Windows Azure in February 2010 and later renamed to Microsoft Azure on March 25, 2014.

Services

Microsoft Azure uses large-scale virtualization at Microsoft data centers worldwide and offers more than 600 services. Microsoft Azure offers a service level agreement that guarantees 99.9% availability for applications and data hosted on its platform, subject to specific terms and conditions outlined in the SLA documentation.

Computer services

  • Virtual machines, infrastructure as a service, allowing users to launch general-purpose Microsoft Windows and Linux virtual machines, software as a service, as well as preconfigured machine images for popular software packages.
  • * Starting in 2022, these virtual machines are now powered by Ampere Cloud-native processors.
  • * Most users run Linux on Azure, some of the many Linux distributions offered, including Microsoft's own Linux-based Azure Sphere.
  • App services, platform as a service environment, letting developers easily publish and manage websites.
  • Azure Web Sites allows developers to build sites using ASP.NET, PHP, Node.js, Java, or Python, which can be deployed using FTP, Git, Mercurial, Azure DevOps, or uploaded through the user portal. This feature was announced in preview form in June 2012 at the Meet Microsoft Azure event. Customers can create websites in PHP, ASP.NET, Node.js, or Python, or select from several open-source applications from a gallery to deploy. This comprises one aspect of the platform as a service offerings for the Microsoft Azure Platform. It was renamed Web Apps in April 2015.
  • Web Jobs are applications that can be deployed to an App Service environment to implement background processing that can be invoked on a schedule, on-demand, or run continuously. The Blob, Table, and Queue services can be used to communicate between Web Apps and Web Jobs and to provide state.
  • Azure Kubernetes Service provides the capability to deploy production-ready Kubernetes clusters in Azure.
  • In July 2023, watermarking support on Azure Virtual Desktop was announced as an optional feature of Screen Capture to provide additional security against data leakage.

    Identity

  • Entra ID connect is used to synchronize on-premises directories and enable SSO.
  • Entra ID B2C allows the use of consumer identity and access management in the cloud.
  • Entra Domain Services is used to join Azure virtual machines to a domain without domain controllers.
  • Azure information protection can be used to protect sensitive information.
  • Entra ID External Identities is a set of capabilities that allow organizations to collaborate with external users, including customers and partners.
  • On July 11, 2023, Microsoft announced the renaming of Azure AD to Microsoft Entra ID. The name change took place four days later.

    Mobile services

  • Mobile Engagement collects real-time analytics that highlight users' behavior. It also provides push notifications to mobile devices.
  • HockeyApp can be used to develop, distribute, and beta-test mobile apps.

    Storage services

  • Storage Services provides REST and SDK APIs for storing and accessing data on the cloud.
  • Table Service lets programs store structured text in partitioned collections of entities that are accessed by the partition key and primary key. Azure Table Service is a NoSQL non-relational database.
  • Blob Service allows programs to store unstructured text and binary data as object storage blobs that can be accessed by an HTTP path. Blob service also provides security mechanisms to control access to data.
  • Queue Service lets programs communicate asynchronously by message using queues.
  • File Service allows storing and access of data on the cloud using the REST APIs or the SMB protocol.

    Communication services

  • Azure Communication Services offers an SDK for creating web and mobile communications applications that include SMS, video calling, VOIP and PSTN calling, and web-based chat.

    Data management

  • Azure Data Explorer provides big data analytics and data-exploration capabilities.
  • Azure Search provides text search and a subset of OData's structured filters using REST or SDK APIs.
  • Cosmos DB is a NoSQL database service that implements a subset of the SQL SELECT statement on JSON documents.
  • Azure Cache for Redis is a managed implementation of Redis.
  • StorSimple manages storage tasks between on-premises devices and cloud storage.
  • Azure SQL Database works to create, scale, and extend applications into the cloud using Microsoft SQL Server technology. It also integrates with Active Directory, Microsoft System Center, and Hadoop.
  • Azure Synapse Analytics is a fully managed cloud data warehouse.
  • Azure Data Factory is a data integration service that allows creation of data-driven workflows in the cloud for orchestrating and automating data movement and data transformation.
  • Azure Data Lake is a scalable data storage and analytic service for big data analytics workloads that require developers to run massively parallel queries.
  • Azure HDInsight is a big data-relevant service that deploys Hortonworks Hadoop on Microsoft Azure and supports the creation of Hadoop clusters using Linux with Ubuntu.
  • Azure Stream Analytics is a Serverless scalable event-processing engine that enables users to develop and run real-time analytics on multiple streams of data from sources such as devices, sensors, websites, social media, and other applications.

    Messaging

The Microsoft Azure Service Bus allows applications running on Azure premises or off-premises devices to communicate with Azure. This helps to build scalable and reliable applications in a service-oriented architecture. The Azure service bus supports four different types of communication mechanisms:
  • Event Hubs, which provides event and telemetry ingress to the cloud at a massive scale, with low latency and high reliability. For example, an event hub can be used to track data from cell phones such as coordinating with a GPS in real time.
  • Queues, which allows one-directional communication. A sender application would send the message to the service bus queue and a receiver would read from the queue. Though there can be multiple readers for the queue, only one would process a single message.
  • Topics, which provides one-directional communication using a subscriber pattern. It is similar to a queue; however, each subscriber will receive a copy of the message sent to a Topic. Optionally, the subscriber can filter out messages based on specific criteria defined by the subscriber.
  • Relays, which provides bi-directional communication. Unlike queues and topics, a relay does not store in-flight messages in its memory; instead, it just passes them on to the destination application.

    Media services

A PaaS offering that can be used for encoding, content protection, streaming, or analytics.

CDN

Azure has a worldwide content delivery network designed to efficiently deliver audio, video, applications, images, and other static files. It improves the performance of websites by caching static files closer to users, based on their geographic location. Users can manage the network using a REST-based HTTP API.
Azure has 118 point-of-presence locations across 100 cities worldwide as of January 2023.

Developer

Through Azure Blockchain Workbench, Microsoft is providing the required infrastructure to set up a consortium network in multiple topologies using a variety of consensus mechanisms. Microsoft provides integration from these blockchain platforms to other Microsoft services to streamline the development of distributed applications. Microsoft supports many general-purpose blockchains, including Ethereum and Hyperledger Fabric and purpose-built blockchains like Corda.

Azure Function

Azure functions are used in serverless computing architectures, where subscribers can execute code as an event-driven Function-as-a-Service without managing the underlying server resources. Customers using Azure functions are billed based on per-second resource consumption and executions.