There are several ways to determine the model of your computer. If you have a desktop, check the front of the computer to see if there is a model displayed (for example, the Optiplex 5050 has its model displayed at the top right corner). If you have a laptop, check the bottom of the computer to see if the model is listed there.
If you cannot find your computer's model displayed physically, check to see if your computer has the Dell Update app (it may also appear as Dell Command | Update). If your computer has this app, open it and view the information bar at the left-hand side of the app. Your computer's model will be displayed in big, bold letters. For example, the computer that took the following image was a Dell XPS 9370 laptop.
If you do not have this app and are still unable to locate the computer's model, contact the IT Help Desk for assistance.