Final answer:
ARPANET was a decentralized, highly redundant communications network created by the federal government in the 1950s and 1960s. It allowed government facilities and research universities to share information and communicate officially.
Step-by-step explanation:
ARPANET was a decentralized, highly redundant communications network created by the federal government in the 1950s and 1960s. It allowed government facilities and research universities to share information and communicate officially. ARPANET, which later evolved into the internet, was started during the Cold War and played a crucial role in the development of computer networking technologies.