Short for Data Source Name. Data Source Name provides connectivity to a database through an ODBC driver. The DSN contains database name, directory, database driver, UserID, password, and other information. Once you create a DSN for a particular database, you can use the DSN in an application to call information from the database.
There are three types of DSNs:
(1) System DSN — can be used by anyone who has access to the machine. DSN info is stored in the registry.
(2) User DSN — created for a specific user. Also stored in the registry.
(3) File DSN– DSN info is stored in a text file with .DSN extension.
DSN is often used by Active Server Pages (ASP) and Visual Basic programs when a query to a database is necessary to retrieve information.
There is also what is known as a “DSN-less connection.” Instead of using a DSN to connect to a database, the developer specifies the necessary information right in the application. With a DSN-less connection the developer is free to use connection standards other than ODBC, such as OLE DB.
Short for Distributed System Object Model, a version of SOM that supports sharing binary objects across networks. DSOM is similar to Microsoft’s competing standard called DCOM.
- Digital Signal Processing (DSP)
Short for digital signal processing, which refers to manipulating analog information, such as sound or photographs that has been converted into a digital form. DSP also implies the use of a data compression technique. When used as a noun, DSP stands for digital signal processor, a special type of coprocessor designed for performing the mathematics […]
Short for Detailed Seller Ratings, on eBay DSR is the part of the feedback system that allows buyers to leave detailed ratings for the seller on four aspects of a transaction. These four areas available for comment and ratings include the following: Item as described Communication Shipping time Shipping and handling charges In DSR the […]
Short for Double Sided Single Layer DVD. See dual layer.
Acronym for direct-sequence spread spectrum. DSSS is one of two types of spread spectrum radio, the other being frequency-hopping spread spectrum. DSSS is a transmission technology used in LAWNtransmissions where a data signal at the sending station is combined with a higher data rate bit sequence, or chipping code, that divides the user data according […]