Dicionário do Programador - Letra O OAuth Obfuscation Object Object code Object file Object-Oriented Programming (OOP) Object-Relational Mapping (ORM) Objective-C Observabilidade Observable Observable Pattern OCaml Octal Octave Octet ODBC (Open Database Connectivity) Off-by-one error Office suite Offline Ohm Ohm's law OkHttp OLAP (Online Analytical Processing) OLE (Object Linking and Embedding) Oligomorphic OLTP (Online Transaction Processing) Omnichannel Omnidirectional antenna On-chip On-demand On-premises software One-hot encoding One-to-many relationship One-to-one relationship One-way function Onion routing Online Online service provider onload Ontology OOP Op-amp Open API Open Source Open System Open-Closed Principle Open-collector Open-drain Open-frame Open-loop Open-shortest-path-first (OSPF) Open-source hardware Open-source software OpenID OpenStack Operand Operand forwarding Operating System (OS) Operation Operational transformation Operator Operator Overloading Optical Character Recognition (OCR) Optical mouse Optical storage Optimistic locking Optimization Option type Optional OR gate Oracle Oracle VM VirtualBox Orchestration Orchestrator Order by Order of magnitude Ordinal Organizationally Unique Identifier (OUI) ORM Orphan process Orthogonal frequency-division multiplexing (OFDM) OS/2 Oscilloscope OSI Model Out-of-band Out-of-order execution Outer join Outlier Output Output device Outsourcing Over-provisioning Over-sampling Over-the-air (OTA) Over-voltage Overclocking Overfitting Overflow Overhead Overlay Overlay network Overload Overparameterization Override Owasp Owner