The start of global telecommunications.
Satellites play an important role in transmitting all sorts of data today.
US forms the Advanced Research Projects Agency (ARPA) within the Department of Defense (DoD) to establish US lead in science and technology applicable to the military.
As we will see later the Internet relies on packets to transfer data.
The origin is military : for utmost security in transferring information of networks (no single outage point).
Data is split into tiny packets that may take different routes to a destination.
Hard to eavesdrop on messages.
More than one route available -- if one route goes down another may be followed.
Networks can withstand large scale destruction (Nuclear attack - This was the time of the Cold War).
First node at UCLA (Los Angeles) closely followed by nodes at Stanford Research Institute, UCSB (Santa Barbara) and U of Utah (4 Nodes).
Number of hosts 28,000.