Computer cases can come in a wide array of shapes and sizes, from a basic box you can order online to a custom-made bust of your uncle Kevin that you can slap a power supply and graphics card into.
No matter what kind of case you gravitate towards, it is important to know what form factor of motherboard will be compatible with it, and the benefits and drawbacks that accompany those sizes. Whether you are building a new PC or simply upgrading ol’ reliable, the form factor of your motherboard is an important piece of the puzzle.