You can find your computer's name on a Windows PC by opening the "About" menu, and on a Mac with the "Sharing" menu.
Open Command Prompt or PowerShell and enter "wmic bios get serialnumber" to find your PC's serial number. Windows and System ...
To find your graphics card: Look for a section called Display adapters and click the arrow next to it. You'll see your GPU listed there. If you want more details, right-click the GPU name and click ...