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In 1958, the first Advanced Research Projects Agency, or ARPA, was created in response to an unanticipated surprise—the Soviet Union's successful launch of Sputnik on October 4, 1957. The ARPA model was designed to anticipate and pre-empt such technological surprises.
The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the technical foundation of the Internet.
During the late 1960s, with the transfer of these mature programs to the Services, ARPA redefined its role and concentrated on a diverse set of relatively small, essentially exploratory research programs. The agency was renamed the Defense Advanced Research Projects Agency (DARPA) in 1972, and during the early 1970s, it emphasized direct energy ...
Army Research, Development and Engineering Command (RDECOM) Army Research Laboratory (ARL) Army Armament Research, Development and Engineering Center (ARDEC) Engineer Research and Development Center (ERDC) U.S. Army Test and Evaluation Command (ATEC) Army Medical Research and Material Command (USAMRMC)
The administration’s Advanced Research Projects Agency for Health, or ARPA-H, is launching a Precision Surgical Interventions program, seeking ideas from the public and private sectors to ...
Advanced Research Projects Agency, former name of the US Defense Advanced Research Projects Agency; ARPA-E, the Advanced Research Projects Agency-Energy, an agency created in 2007 within the US Department of Energy; ARPA-H, the Advanced Research Projects Agency for Health, an organization created in 2022 within the US National Institutes of Health
Homeland Security Advanced Research Projects Agency (HSARPA) is a part of the Science and Technology Directorate at the United States Department of Homeland Security. Much like DARPA in the Department of Defense, HSARPA is tasked with advanced projects to advance the technology needed to protect the US.
The name originally was the acronym for the Advanced Research Projects Agency (ARPA), the funding organization in the United States that developed the ARPANET, the precursor of the Internet. It was the first domain defined for the network in preparation for a hierarchical naming system for the delegation of authority, autonomy, and responsibility.