Thin Client
Thin Client is a form of "remote" computing, it is best explained as follows …
Normally, you might use the computer on your desktop to do all your processing ie you might use Microsoft Word to write documents and Excel for Spreadsheets. Whether it is a PC or a Mac, these programs sit on your computer and your computer does all the work to manipulate and manage your data.
Sometimes you would save your documents to your own hard drive or onto a network drive (such as CSU's S and P drives).
Now imagine DIT provided a very large, fast and centrally located computer - a server. This server has all the software programs on it that you need, and does the same things as your PC except that you (and others) access this over a network or via the internet.
In this case you would use your desktop computer to "view" your work on that Server. That server does all the work and your desktop computer becomes a "Thin Client Computer".
Previously you may have heard the terms "Terminal Server", or "Remote Desktop", these terms all mean the same thing.