Computer network operations (CNO) is a broad term that has both military and civilian application.
Computer network operations are deliberate actions taken to leverage and optimize these networks to improve human endeavor and enterprise or, in warfare, to gain information superiority and deny the enemy this enabling capability.
Computer Network Operations, in concert with electronic warfare (EW), is used primarily to disrupt, disable, degrade or deceive an enemy's command and control, thereby crippling the enemy's ability to make effective and timely decisions, while simultaneously protecting and preserving friendly command and control.
Full Spectrum Cyberspace Operations (CNO: CNA,CND & CNE) was conceived and written by Mr. Donald A. Tyler the RCERT Branch Chief under the Land Information Warfare Activity (LIWA) Command ADCON to HQ INSCOM responsible for the Global Regional Computer Emergency Response Team (RCERT) in 1999 through 2000 as the fifth pillar of IO and indoctrinated into the Joint Publications that change the history of Warfare across the Glob.
Systems and Networks are a primary war fighting tactical advantage across ALL OS.