Wireless services symbolize a technological development, and perhaps a new era of telecommunications, but these services have been used for over a century and remain the same as "radio." The humble beginnings of wireless services take us back to the 19th century, when Guglielmo Marconi, “the father of radio,” was making his mark on the world of wireless technology. When Marconi began experimenting with radio waves (hertzian waves) in 1894, his idea was to produce and detect radio waves over long distances. In 1896, Marconi was successful and obtained a patent and established the Wireless Telegraph and Signal Company Limited, the world's first radio factory. In 1901, signals were received across the Atlantic and in 1905, the first wireless distress signal was sent using Morse code. Wireless technology eventually progressed to become an invaluable tool used by the United States military. The military has configured wireless signals to transmit data over a medium with complex encryption, making unauthorized access to network traffic nearly impossible. This type of technology was first introduced during World War II, when the Army began sending battle plans over enemy lines and when Navy ships instructed their fleets from a shore to the other. Wireless has proven so important as a secure means of communication that many businesses and schools thought it could expand. their IT domain by extending their wired local area networks (LANs) using wireless LANs. The first wireless LAN began in 1971, when networking technologies met radio communications at the University of Hawaii in a research project called ALOHNET. The system's two-way star topology included seven computers deployed on four islands to communicate with the central computer on the island of Oahu without the use of telephone lines. This is how wireless technology, as we know it, began to make its way into every home, classroom, and business around the world. Wireless networking technology has been implemented for a number of things, including cell phones, PDAs, and personal and business computers. There are three types of wireless networks: wide area networks (WAN), wireless local area networks (WLAN), and personal area networks (PAN). Wide area networks include networks provided by mobile phone carriers. Wireless LANs are networks set up to provide wireless connectivity within a certain coverage area. Personal Area Networks are networks that provide wireless connectivity over distances of up to approximately 10 m. Wireless networks have many advantages, but also have many disadvantages..