The document is a presentation about cloud computing given by Bălan Andrei and Bălan Alexandru. It begins with defining cloud computing as the use of computing resources delivered over a network. It then provides a simplified explanation and discusses popular cloud services like Dropbox and Google Cloud. The presentation uses an example of a person named Mary who stores and shares a presentation file in the cloud to illustrate how cloud storage and sharing works. It concludes by stating some benefits of cloud computing like always having backup files and easy sharing with others.