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Open Scripture Information Standard

OpenJDK

OpenURL

OpenURL knowledge base

Opera Coast

Org-mode

OS-level virtualization

Over-the-top media service

Corel Painter Essentials

PAK1

Pardus (operating system)

PC Card

Sinchon Massacre

Battle of Yongyu

Battle of Chosin Reservoir

December massacres

Battle of Hill 282

Battle of Inchon

First and second battles of Wonju

Constituent National Assembly (South Korea)

1950 South Korean legislative election

First Battle of Seoul

Seoul National University Hospital Massacre

Second Battle of Seoul