155 FCS definitions

Future Combat Systems 
Frame Check Sequence 
Future Combat System 
Fire Control System 
Flight Control System 
Federal Catalog System 
Foreign Commercial Service 
Federal Communications System 
Fibre Channel Standard 
Fire Control Systems 
Flight Crew System 
Frame Check Sum 
Facility Control System 
Fast Circuit Switching 
Fecal Containment System 
Federation of Communication Services 
Federation of Communications Services 
fetal calf serum 
Finite Capacity Scheduling 
Flight Control Systems 
FLUID CONTROL 
fluorescence correlation spectroscopy 
For Christ's Sake 
Frame Checking Sequence 
Facsimile Communications System 
Farm Consultation Service 
FGB Communications System 
Fiber Channel Specification 
Fiber Channel Standard 
File Control System