Directory System Agent 
Digital Signature Algorithm 
Driving Standards Agency 
Dynamic Service Addition 
Defense Supply Agency 
digital subtraction angiography 
division support area 
Directory Service Agent 
Documented Safety Analysis 
Distributed Systems Architecture 
Digital Storage Architecture 
Data Set Adapter 
Data Systems Architecture 
defense special assessment 
dial service assistance 
dimensionally stable anode 
Direct Selling Association 
Directory System Agents 
Distant Support Area 
Distributed Switching Architecture 
Distributed System Architecture 
DAMA Signaling Analyzer 
Defense Security Agency 
Dell SCSI Array 
Dial System Assistance 
Digital Signal Algorithm 
Digital Signal Analyzer 
Digital Spectrum Analysis 
Directed Search Area 
Directory Server Agent