PDO

PDO can refer to:

• Palladium(II) oxide PdO
• 1,3-Propanediol, an industrial chemical
• the Pacific Decadal Oscillation, a pattern of climate variation
• Paid Day Off, an 8 hour long Paid Time Off
• Petroleum Development Oman, an Omani oil company, and the part of the Omani capital region where the company is located
• Policyholder Dividend Obligation
• Protected Designation of Origin, one of three Protected Geographical Status classifications used in the European Union for protected regional foods
• pseudo-differential operator, a concept in mathematical analysis

in computing:

• Panzer Dragoon Orta, a 3D shooter created by Smilebit on the Xbox
• PHP Data Objects, a PHP extension that can be used as a database abstraction layer
• Physical Device Object, a type of WDM (Microsoft Windows Driver Model) Device Object; it represents a device on a bus to a bus driver
• Portable Distributed Objects, a version of Cocoa's Distributed Objects for remote use
• Process Data Object, a type of protocol frame in some fieldbuses
• Python Data Objects, a Python third party library for low level SQL operations
• Persistent Data Object
• Persistent Domain Object

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