Command, Control, Communication

Command, Control, Communication Computer and Intelligence (C4I)
• In the military the exercise of authority and direction by a properly designated commander over assigned and attached forces in the accomplishment of the mission is crucial. Command and control functions are performed through an arrangement of personnel, equipment, communications, facilities, and procedures employed by a commander in planning, directing, coordinating, and controlling forces and operations in the accomplishment of the mission.
• Military forces require extensive long-range communications systems that can maintain contact with all of those forces at all times. To enable national command authorities to exercise effective command and control over their widely dispersed forces, a communications system was established to enable those authorities to disseminate their decisions to all subordinate units, under any conditions, within minutes.
• Such a command and control system, WWMCCS, was created by US DOD titled "Concept of Operations of the
• Worldwide Military Command and Control System," 27 command centers were equipped with more than 6000 computers build extensive network at geographically separate locations, interconnected by a dedicated wide-band, packet-switched communications subsystem and wideband, encrypted, dedicated, data communications circuits.
• Command, Control, Communication Computer and Intelligence. requires precise timing and frequency that can be provided by a rubidium standard.