Panel PCs are highly integrated industrial computing devices that combine a high-brightness flat-panel display screen, a multi-touch touchscreen interface, and a complete industrial PC into a single front-panel-mountable housing. Engineered to serve as primary Human-Machine Interfaces (HMIs) directly on control cabinets and machine frames, these units withstand washdowns, dust exposure, and physical impact at the point of operation. Key hardware features typically include IP65 or IP66 rated waterproof front bezels, projected capacitive or resistive touchscreens, scratch-resistant tempered glass, low-power or high-performance industrial processors, and dual network interfaces.