| DOS | 1st Reader External command file 
| Others |
| DOS | Dad Over Shoulder
| Others |
| DOS | Dal Oil and Sugar
| Others |
| DOS | Dance Of Sound
| Others |
| DOS | Dangers Opportunities and Strengths
| Others |
| DOS | Danish Orthopaedic Society
| Others |
| DOS | Dark Object Subtraction
| Others |
| DOS | Data Operating System
| Others |
| DOS | Data Out System
| Others |
| DOS | Data Output Stream
| Others |
| DOS | Data Over Signal
| Others |
| DOS | Data Overrun Status
| Others |
| DOS | Date of Separation
| Others |
| DOS | Date of Service
| Others |
| DOS | Date Of Submission
| Others |
| DOS | Date Of Surgery
| Others |
| DOS | Datorn Och Skolan
| Others |
| DOS | Day Of Sharing
| Others |
| DOS | Day Of Supply
| Others |
| DOS | Days Of Supply
| Others |
| DOS | Dead On Scene
| Others |
| DOS | Dead Operating System
| Others |
| DOS | Dean Of Students
| Others |
| DOS | Death Of Seasons
| Others |
| DOS | Declaration of Security
| Others |
| DOS | Declaration Of Support
| Others |
| DOS | Dedicated Office System
| Others |
| DOS | Defective Operative System
| Others |
| DOS | Defunct Operating System
| Others |
| DOS | Degradation Of Service
| Others |
| DOS | Degrees Of Separation
| Others |
| DOS | Demand Open Sources
| Others |
| DOS | Democratic Opposition of Serbia
| Others |
| DOS | Demokratska Opozicija Srbije
| Others |
| DOS | Demons Of Shadows
| Others |
| DOS | Denail Of Service
| Others |
| DOS | Denial Of Service
| Others |
| DOS | Dense Operating System
| Others |
| DOS | Density Of States
| Others |
| DOS | Department Of State
| Others |
| DOS | Deployed Operational State
| Others |
| DOS | Desktop Operating System
| Others |
| DOS | Deuce Of Spades
| Others |
| DOS | Development Open Server
| Others |
| DOS | Di-Octyl Sebacate
| Others |
| DOS | Dies Of Senility
| Others |
| DOS | Difficult Operating System
| Others |
| DOS | Digital Open System
| Others |
| DOS | Digital Operating System
| Others |
| DOS | Dijaska Organzacija Slovenije
| Others |
| DOS | Dimensions Of Sound
| Others |
| DOS | Dinamica Ottimizzata Delle Sospensioni
| Others |
| DOS | Dinosaur Operating System
| Others |
| DOS | Direct Operating System
| Others |
| DOS | Director Of Sales
| Others |
| DOS | Director Of Sports
| Others |
| DOS | Directorate of Standardisation
| Others |
| DOS | Directory Of Services
| Others |
| DOS | Dirty Operating System
| Others |
| DOS | Disc Operating System
| Others |
| DOS | Disciples Of Satan
| Others |
| DOS | Disk Of Shadows
| Others |
| DOS | Disk Opening System
| Others |
| DOS | Disk Operating System
| Others |
| DOS | Disk Operating SystemDemocratic
| Others |
| DOS | Disk Operating Systems
| Others |
| DOS | Disk Operation System
| Others |
| DOS | Disk Operationg System
| Others |
| DOS | Distributed Operating System
| Others |
| DOS | Doctors Orders System
| Others |
| DOS | Driving Observation Schedule
| Others |
| DOS | Driving On Sidewalk
| Others |
| DOS | Dual Operating System
| Others |
| DOS | Dual Optimum System
| Others |
| DOS | Dual Organized System
| Others |
| DOS | Dual Oxygen Sensor System
| Others |
| DOS | Dumb Operating System
| Others |
| DOS | Dunce Overriding System
| Others |
| DOS | Dynamic Operator Set
| Others |
| DOS | Windows DOS-related file
| Others |