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Input Devices are electronic components or peripherals designed to facilitate communication between users and computing systems, including desktops, laptops, and UPS systems. They translate human actions into electrical signals that computers can understand, enabling interaction and control. Common examples include keyboards, mice, touchpads, scanners, webcams, microphones, and game controllers. These devices play a crucial role in bridging the gap between the digital and physical worlds, enhancing user experience and productivity.