Wireless systems are technologies that allow devices to communicate without physical connections, using radio waves or other electromagnetic signals. Common examples include Wi-Fi, Bluetooth, and cellular networks. These systems enable various devices, such as smartphones, laptops, and smart home gadgets, to connect and share information seamlessly. The main advantage of wireless systems is their convenience and flexibility, as they eliminate the need for cables and wires. This allows users to move freely while staying connected. Additionally, wireless systems can be easily expanded, making it simple to add new devices to a network without complicated installations.