Computer case (chassis) help and support Updated: 09/15/2017 by Computer Hope Computer case basics What is a chassis (case)? Help and buying tips with purchasing a case. Contact information for computer case manufacturers. Computer case questions and answers What does the inside of a computer look like? How do I open my computer case? Can I run a desktop computer on its side? How to install computer hardware. Steps and help with cleaning your computer. All other hardware related questions and answers.