A thin client is a stateless, fanless desktop terminal that has no hard drive. Thin clients access data remotely through a connection to a server and presents a virtual desktop to the user. Thin clients are widely used in education today, because of better security, manageability, and scalability, which results in a lower cost. Thin clients integrate easily with existing computing infrastructure, replacing more costly PCs. Thin clients also provide instructors with the ease and efficiency to teach several different courses with varying classification levels using the same infrastructure.