ANCA APOSTU 1 , FLORINA PUICAN 2 , GEANINA ULARU 3 , GEORGE SUCIU 4 , GYORGY TODORAN 5 1, 2, 3 Economic Informatics and Cybernetics Department Academy of Economic Studies 15(17, Calea DorobanŃi, Bucharest 4, 5 University POLITEHNICA of Bucharest ROMANIA 1 ancaiapostu@gmail.com, 2 puicanflorina@yahoo.com, 3 ularugeanina@yahoo.com, 4 george.suciu@radio.pub.ro, 5 todoran.gyorgy@gmail.com s companies of all shapes and sizes begin to adapt to cloud computing, this new technology is evolving like never before. Industry experts believe that this trend will only continue to grow and develop even further in the coming few years. While Cloud computing is undoubtedly beneficial for mid(size to large companies, it is not without its downsides, especially for smaller businesses. In this paper we are presenting a list of advantages and disadvantages of Cloud computing technology, with a view to helping enterprises fully understand and adopt the concept of Cloud computing. Also, in the last chapter we are presenting a cloud application for telemetry with a focus on monitoring hydro(energy, in order to demonstrate the advantages that cloud technology can have for this domain. We consider that the way to make cloud vastly benefit all types of businesses is to know very well it's ups and downs and adapt to them accordingly. Cloud Computing, Grid Computing, telemetry, architecture, advantages, disadvantages. Nowadays evolution has its premises on the fact that faster access to innovation drives higher productivity. The Web is recognized as epicenter of innovation. Rapid innovation powered by the Cloud has an advantage over traditional technology cycles: employees adapt to a continuous stream of manageable improvements better than they tolerate large, disruptive batches of change. Gradual iterations in bite(sized chunks substantially reduce change(management challenges. Conversely, employees are subjected to a painful re(learning cycle each time companies upgrade traditional software. Because data is stored in the Cloud instead of on employee computers, Cloud computing enhances multiple users to access and contribute to projects simultaneously without worrying about using the same operating system, software, or browser. For example, instead of collaborating on a document by sending back and forth revision after revision as attachments, documents are stored in the cloud. Coworkers can access the web(based document simultaneously in their browsers, and even make changes that other authorized users can see in real( time. Eliminating attachment round(trips by storing data in the cloud saves time and reduces frustrations for teams who need to work together efficiently. Through synchronous replication, data and user actions are mirrored in nearly real(time across multiple data centers. If one data center becomes unavailable for any reason, the system is designed to instantly fall back to a secondary data center with no user(visible interruption in service. Cloud provides extensive flexibility and control. Nevertheless, moving to the cloud doesn't mean that businesses lose control of their data or their technology. For example, the Google Apps Terms of Service explicitly state that customers retain ownership of their data in Google Apps. Furthermore, cloud providers give controls so administrators can manage which applications their users can access and how employees can use each service. They also allow administrators build custom functionality and integrations with other technologies. Going detailed in the topic of Cloud Computing we must mention that Cloud Computing is split in three different categories according to [1]: Recent Advances in Applied Computer Science and Digital Services ISBN: 978-1-61804-179-1 118