IoT is a hot subject right now and Azure is one of the first providers in the cloud market to facilitate such services. IoT modules allow developers to deploy services such as IoT device communication, networking, and device allocation to the hub.

Refer to the following list of modules provided by Azure for IoT purposes:

There are other modules, along with add-ons such as developer tools, monitoring tools, Bing Maps application programming interfaces (APIs), and so on.

I hope this provides you with brief but useful insight into Azure. Let's dive into Azure Cosmos DB now.