List of 10 hardware devices of the computer?

Anything you can touch is hardware, including the computer chassis, but here's the 10 main components:

1. Power supply unit (PSU)
2. Motherboard or mainboard
3. Central processing unit (CPU)
4. Maths (floating-point) processing unit (FPU)
5. Graphics processing unit (GPU)
6. Audio processing unit (APU)
7. Memory devices (RAM, ROM, PROM, EPROM and CMOS)
8. Mass data storage devices (HDD, optical drive, solid state drive)
9. Output devices (monitor, printer)
10. Input devices (keyboard, mouse, touch-screen, pen/tablet, game controller, scanner, camera/camcorder, microphone).