Decimal Binary Octal Hexadecimal Base-10 Base-2 Base-8 Base-16 0 0 0 0 1 1 1 1 2 10 2 2 3 11 3 3 4 100 4 4 5 101 5 5 6 110 6 6 7 111 7 7 8 1000 10 8 9 1001 11 9 10 1010 12 A 11 1011 13 B 12 1100 14 C 13 1101 15 D 14 1110 16 E 15 1111 17 F 16 10000 20 10 17 10001 21 11 18 10010 22 12 ...
Off-line Operating Simulator OOT Object-Oriented Technology OOUI Object Oriented User Interface OP Operation + Optical + Output OPAC Online Public Access Catalog [Internet] OPC Open Process Control + Organic/Optical Photoconductor OPCODE Operational Code OPD Operand OPI Open Prepress Interface OPM Operations Per Minute OPS Open Profiling Standard + Oracle Parallel Server [Oracle] OPT Open Protocol Technology .OPT Options (file name extension) OPUS Octal Program Updating System OQL Object Query Language ORACLE On-Line Inquiry and Report Generator (UNIX DB program) ORB Object Request Broker [Microsoft] ORDVAC * Ordnance Variable Automatic Computer .ORG Non-Profit Organizations (Domain name) [Internet] ORI Online Retrieval Interface .ORI Original (file name extension) ORL Optical Return Loss OROM Optical Read-Only Memory ORS Output Record Separator OS Operating System OS/2 Operating System/2 [IBM]
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