What is "c4isr"

n. (context military US initialism English) (w: Command, control, communications, computers, intelligence, surveillance, and reconnaissance)

C4ISR may refer to:

• the CISR concept of Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance, the U.S. term for CISTAR
• CISR Journal, a journal published by the Defense News Media Group
• the C4ISR architectural framework (C4ISR AF), now known as Department of Defense Architecture Framework (DoDAF)