(pronounced as separate letters) Short for Orthogonal Frequency Division Multiplexing, an FDM modulation technique for transmitting large amounts of digital data over a radio wave. OFDM works by splitting the radio signal into multiple smaller sub-signals that are then transmitted simultaneously at different frequencies to the receiver. OFDM reduces the amount of crosstalk in signal transmissions. 802.11a WLAN, 802.16 and WiMAX technologies use OFDM.
Compare with FHSS and DSSS.
Short for Open Financial Exchange, a unified specification for the exchange of electronic financial data over the Internet. Using a request-response system of communication, OFX allows a client to connect directly to a financial institution’s server. An OFX application sends a request to another OFX application, which sends a response. OFX was created by CheckFree, […]
Short for Ontology Inference Layer, OIL a Web-based representation and inference layer for ontologies, combining frame-based languages with the formal semantics and reasoning services. Its goal is to provide a general purpose markup language for the Semantic Web. OIL is compatible with RDF Schema. The OIL initiative is funded by the European Union IST program […]
- Online Analytical Processing OLAP
Short for Online Analytical Processing, a category of software tools that provides analysis of data stored in a database. OLAP tools enable users to analyze different dimensions of multidimensional data. For example, it provides time series and trend analysis views. OLAP often is used in data mining. The chief component of OLAP is the OLAP […]
- Object Linking and Embedding (OLE)
Abbreviation of Object Linking and Embedding, pronounced as separate letters or as oh-leh. OLE is a compound document standard developed by Microsoft Corporation. It enables you to create objects with one application and then link or embed them in a second application. Embedded objects retain their original formatand links to the application that created them. […]
Short for organic light-emitting diode, a display device that sandwiches carbon-based films between two charged electrodes, one a metallic cathode and one a transparent anode, usually being glass. The organic films consist of a hole-injection layer, a hole-transport layer, an emissive layer and an electron-transport layer. When voltage is applied to the OLED cell, the […]