Course information

Enterprise computing has evolved profoundly over the past few decades.

We have moved from closed, controlled and isolated machine rooms…

…to complex hybrid environments combining local servers, cloud services, mobility and advanced cybersecurity.

This chapter aims to explain why and how this evolution occurred, by addressing:

• the history of IT infrastructure
• the limitations of the traditional on-premises model
• the emergence of cloud computing
• the mistakes of the “all-cloud” approach
• the birth of the hybrid model
• the human, organizational and security impacts

Upon completion of this module, the learner will be able to:

• Explain the historical evolution of IT infrastructures.
• Describe how the on-premise model works.
• Identify the technical, economic and organizational limitations of on-premise.
• Understanding the benefits of cloud computing.
• Explain the risks associated with an uncontrolled adoption of the cloud.
• Define what a hybrid infrastructure is and why it is necessary today.
• Understanding the human and organizational impacts of this transformation.

• IT Operations
• System Administrators

2.5