http://www.gcflearnfree.org/computerbasics The basic parts of a desktop computer are the computer case, monitor, keyboard, mouse, and power cord. Each part plays an important role whenever you use a computer. Watch the video to learn about the basic parts of a desktop computer. If you are interested in learning more about this topic, please visit our site to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.