Systems Manager lets you remotely and securely manage the configuration of your managed instances. A managed instance is any EC2 instance or on-premise machine in your hybrid environment that has been configured for Systems Manager.
EC2 is one of the services offered by AWS. EC2 stands for Elastic Cloud Compute. It helps to deploy and develop applications very fast. In simple terms, you can consider EC2 as a machine with an Operating system of your own choice. It is assigned with all hardware configuration, RAM and memory. But it is on cloud servers. You can access it from anywhere using the internet exactly as a replica of your physical devices.
Now let’s say there is a sudden need for 6 resources (laptops or computers) only for one day, so you are not going to buy them, instead of that, you can create those machines virtually by using an EC2 instance. In this case, you will pay for what you use. Once you are done using those resources, you can terminate them very easily.
Learn about managed instances
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