Outlook Express is an email and news client, that is bundled with versions of Microsoft Windows (Widnows 98, Win Server 2003). It is a different software from Microsoft Outlook and is superseded by Windows Live Mail.

Outlook Web App is Microsoft Exchange Server 2010's Web-based email client. It gives users an experience similar to Microsoft Outlook without requiring the presence of the full mail client. 

A standard for the transmission and reception of application-related information in a wireless communications system. OTA is commonly used in conjunction with the Short Messaging Service (SMS).

The wireless delivery of new software or data to mobile phones and tablets. Wireless carriers have traditionally used over-the-air updates to deploy firmware and configure phones for use on their networks. 

To govern or manage an organization delivering a project or service.

A governance function of managing an organization delivering a project or service.

Oversubscription, in a SAN (storage area network) switching environment, is the practice of connecting multiple devices to the same switch port to optimize switch use. 

The Open Web Application Security Project (OWASP) is an not-for-profit online community focused on improving web application security by creating freely available resources like articles, methodologies, documentation, tools, and technologies.

Oracle Warehouse Builder (OWB) is Oracle's comprehensive tool for ETL (extract, transform and load), fully integrated relational and dimensional modeling, data quality, data auditing, and full life cycle management of data and metadata.

OSSTMM Wireless Security Expert (OWSE) by ISECOM

Portfolio, Programme and Project Offices (P3O) Foundation by AXELOS

A.k.a package manager, is a program used to install, uninstall and manage software packages.Software packages and package managers are often mentioned in connection to Unix and Unix-derived environments, such as Linux. 

The unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network. 

A packet analyzer (also known as a network analyzer, protocol analyzer or packet sniffer—or, for particular types of networks, an Ethernet sniffer or wireless sniffer) is a computer program or piece of computer hardware that can intercept and log traffic that passes over a digital network or part of a network. As data streams flow across the network, the sniffer captures each packet and, if needed, decodes the packet's raw data, showing the values of various fields in the packet, and analyzes its content according to the appropriate RFC or other specifications.

A technology designed to minimize the practical effect of lost packets in digital communications. In particular, PLC is used in Voice over Internet Protocol (VoIP). 

A full-duplex protocol for transferring packets between parties in an X.25 network. PAP supports data sequencing, flow control, accountability, and error detection and recovery.