Oracle WebCenter Sites 11g Certified Implementation Specialist by Oracle

Oracle WebLogic Server 12c Certified Implementation Specialist by Oracle

Oracle ZFS Storage ZS3 Certified Implementation Specialist by Oracle

Oracle9i Database Administrator Certified Professional by Oracle

Orchard is a free, open source, community-focused content management system written in ASP.NET platform using the ASP.NET MVC framework. Its vision is to create shared components for building ASP.NET applications and extensions, and specific applications that leverage these components to meet the needs of end-users, scripters, and developers.

Themes allow users to change the look and functionality of a Orchard CMS website or installation without altering the information content or structure of the site. Themes may be installed using the Orchard "Appearance" administration tool or theme folders may be uploaded via FTP.

An order management Software/System, is a computer software used order entry and processing in various industries.

OrientDB is an open source NoSQL database management system written in Java. It is the 2nd Generation Distributed Graph Database, supporting graph, document, key/value, and object models, but the relationships are managed as in graph databases with direct connections between records. OrientDB is incredibly fast: it can store 220,000 records per second on common hardware. Even for a Document based database, the relationships are managed as in Graph Databases with direct connections among records. You can traverse parts of or entire trees and graphs of records in a few milliseconds. Supports schema-less, schema-full and schema-mixed modes. Has a strong security profiling system based on user and roles and supports SQL amongst the query languages. Thanks to the SQL layer, it's straightforward to use for those skilled in the relational database world.

A support file (such as a DLL file) that no longer serves a purpose because the "parent" application it is associated with has been moved or uninstalled. 

A method of digital modulation in which a signal is split into several narrowband channels at different frequencies. OFDM is similar to conventional frequency-division multiplexing (FDM). 

A method of attacking a Web server by remotely gaining access to the OS and then executing system commands through a browser. Once access has been gained in this way, a hacker can upload programs to the compromised server and run them.

OS Testing is the most complicated application and hardward integration testing process which can be divided into a physical machine and a virtual machine. Things to look for in a successful testing environment are speed, ease of use and closeness to the real thing.

OS X previously Mac OS X, is a series of Unix-based graphical interface operating systems developed, marketed, and sold by Apple Inc. It is designed to run exclusively on Mac computers, having been pre-loaded on all Macs since 2002.

OS X Server, formerly Mac OS X Server, is a separately sold Unix server operating system from Apple Inc. architecturally identical to its desktop counterpart OS X—with additional server programs and management and administration tools.

The IBM operating system most commonly installed on its S/390 line of mainframe server. It is an evolved and newly renamed version of MVS (Multiple Virtual Storage), IBM's long-time, robust mainframe operating system. 

IBM's operating system for its AS/400 and AS/400e line of business computers. Because OS/400 is closely attuned to the AS/400 hardware design, there is no alternative operating system to compete with it.