$5-1$ What is IT infrastructure, and what are the stages and drivers of IT infrastructure evolution?

Define IT infrastructure from both a technology and a services perspective.

List each of the eras in IT infrastructure evolution and describe its distinguishing characteristics.

Define and describe the following: web server, application server, multitiered client$/$ server architecture.

Describe Moore's Law and the Law of Mass Digital Storage.

Describe how network economics, declining communications costs, and technology standards affect IT infrastructure.

$5-2$ What are the components of IT infrastructure?

List and describe the components of IT infrastructure that firms need to manage.