Cloud computing is a technology that uses remote servers and the internet to maintain data and applications. It allows users to access files and use software from any device with an internet connection, without needing to install anything. This makes computing more efficient by centralizing storage, processing, bandwidth and other resources. Common examples are webmail services like Gmail that can be accessed from any device. While the technology is growing, a 2011 study found that over 90% of senior IT professionals and two-thirds of finance professionals did not fully understand cloud computing at that time.