Internet in the United States Internet in the United States The Internet in the United States grew out of the ARPANET, a network sponsored by the Advanced Research Projects Agency of the U.S. Department of Defense during the 1960s. The Internet in the United States in turn provided the foundation for the worldwide Internet of today. Internet access in the United States is largely provided by the private sector and is available in a variety of forms, using a variety of technologies, at a wide range of speeds and costs. In 2015, 97.5% of Americans were using the Internet, which ranks the U.S. 4th out
Ship Self-Defense System Ship Self-Defense System The Ship Self-Defense System (SSDS) is a combat system specifically designed for anti-air defense of aircraft carriers, and most other non-Aegis United States Navy combat ships. It coordinates several existing shipboard systems. Multi-sensor integration, parallel processing and the coordination of hard and soft kill capabilities are key components of the SSDS. Responses to airborne threats are based on automated or man-in-the-loop engagement doctrine. The SSDS system coordinates many sensors, self-defense weapons and countermeasures installed aboard United States Navy ships. The main objective of SSDS is countering sea-skimming anti-ship missile threats, but it can also engage high-diving anti-ship