| ACLU | American Civil Liberties Union
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| AOL | America On-Line
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| ARPA | Advanced Research Project Agency
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| ASSIST | AgencyAutomated Systems Security Incident Support Team
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| BBS | Bulletin Board System
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| CALS | Continuous Acquisition and Life-Cycle Support
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| DCN | DoD CALS Network
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| DCN/ICN | DoD CALS Network/International CALS Network
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| DFARS | Defense Federal Acquisition Regulation Supplement
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| DISA | Defense Information System Agency
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| DoD | Department of Defense
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| E-Mail | Electronic Mail
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| ECRC | Electronic Commerce Research Center
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| EDT | Eastern Daylight Savings Time
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| EST | Eastern Standard Time
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| FAR | Federal Acquisition Regulation
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| FTP | File Transfer Protocal
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| GENSER | General Service Security Classification
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| GIF | Graphics Interchange Format
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| GNN | Global Network Navigator
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| GUI | Graphical User Interface
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| HTML | HyperText Markup Language
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| HTTP | Hyper-Text Transfer Protocol
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| IAP | Internet Access Provider
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| ICN | International CALS Network
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| ICP | Information Content Provider
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| ICWG | Information Content Working Group
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| IP | Internet Protocol
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| ISO | International Organization for Standardization
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| JCALS | Joint Continuous Acquisition and Life-Cycle Support
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| JEDMICS | Joint Engineering Data Management Information and Control System
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| MOCC | Management Operations Control Center
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| NSFNET-AUP | National Science Foundation Network-Acceptable Use Policy
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| PGP | Pretty Good Privacy
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| POTP | Power One-Time Pad
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| Q&A | Question and Answer
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| R&D | Research and Development
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| SATAN | System Administration Tool for Analyzing Networks
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| SM | Supply Manual |
| TCP | Transmission Control Protocol
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| TCP/ IP | Transmission Control Protocol/ Internet Protocol
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| URL | Uniform Resource Locators
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| WWW | World Wide Web
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