What are the key components of a wireless communication system?

The key components of a wireless communication system consist of the transmitter, receiver, transmission medium, and antenna.

The transmitter is crucial as it generates and sends the signal, converting the information into electromagnetic waves for transmission. The receiver plays an equally important role; it captures these transmitted signals and converts them back into usable information. The transmission medium in wireless communication, typically the air or space, facilitates the propagation of these electromagnetic waves. An antenna, which is essential for both transmitting and receiving, allows the transfer of signals between the wireless devices and the channels in which they operate.

In contrast, the other options presented include elements that are not foundational to wireless communication systems. Firewalls and cloud storage are commonly associated with data security and management in networking. Servers, routers, and switches form the backbone of wired networks and are primarily concerned with directing and managing data traffic rather than the principles of wireless communications. Lastly, a modem, keyboard, and desktop computer involve different aspects of computing and data transmission but do not encapsulate the core elements necessary for a wireless communication setup.