1. faculty at universities often use course management software such as so that students can communicate outside of class and have easy access to class materials.

I’d say platform as a service (paas) or application platform as a service (apaas) or platform base service is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

"computer screen desktop"? what? that phrase makes no sense, and it has nothing to do with modifying system components i assure you.

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