FACTOID # 70: Contrary to the popular rhyme, the rain falls mainly on Guinea.
 
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Encyclopedia > Binary large object

A blob is a collection of binary data stored as a single entity in a database management system. Blobs are typically images, audio or other multimedia objects, though sometimes binary code is stored as a blob. Database support for blobs is not universal. Computer files can be divided into two broad categories: binary and text. ... Data is the plural of datum. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... For images in Wikipedia, see Wikipedia:Images. ... A schematic representation of hearing. ... Multimedia is the use of several media (e. ... In computer science, a binary blob is an opaque binary object for which no source code is available. ...


Blobs were originally just amorphous chunks of data invented by Jim Starkey at DEC, who describes them as "the thing that ate Cincinnati, Cleveland, or whatever".[1] Later, Terry McKiever, a marketing person for Apollo felt that it needed to be an acronym and invented the backronym Basic Large Object. Then Informix invented an alternative backronym, Binary Large Object. Today many people believe that blob was originally intended as an acronym for something, or an apronym at best. Jim Starkey is a database architect who developed InterBase, the first relational database to support multi-versioning, event alerts, arrays and triggers. ... Digital Equipment Corporation was a pioneering company in the American computer industry. ... It has been suggested that this article or section be merged with Acronym and initialism. ... Informix is a family of relational database management system products from IBM, acquired in 2001 from a company (also called Informix or Informix Software) which dates its origins back to 1980. ... In linguistics, an apronym is a word, which as an acronym or backronym, has a meaning related to the meaning of the words constituting the acronym or backronym. ...


The data type and definition was introduced to describe data not originally defined in traditional computer database systems but became possible when disk space became cheap.


This definition gained popularity with IBM's DB2.


A blob can also be a term that describes very large things.


See also: Character large object A Character Large Object (or CLOB) is a collection of character data stored as a single entity in a database management system. ...


References


  Results from FactBites:
 
Re-prioritizing background data transfers in multipoint conferencing - Patent 5938723 (9627 words)
Communication from object manager 220 to conference manager 230 is provided via messages which are passed to the multi-point link manager 240 for the creation of objects, arbitration between the arbitrator and the agent and communication with other agents in the conference.
Object manager 220 is a process which is operative during run time to keep track of the various objects used during a conference between the agent and other agents in the system.
Object managers within each agent or participant coordinate who the arbitrator is and assign a new arbitrator when the assigned arbitrator leaves the meeting or as dictated by other conference events--such as opening/merging a meeting file in which the participant opening/merging the meeting file becomes the arbitrator prior to opening/merging the file.
Object persistence in object-oriented applications (11065 words)
The objects for an application have a different data model from that of the data store schema that is used to store the persistent state of the objects in the data store.
A design object for a car might consist of the design objects for the engine, the power train, the wheels, the body, etc. It is quite possible that the engine (and, therefore, its design object) remains unchanged for several related car models while the external body shape is different for each model.
Objects that are encapsulated for the application need to be constructed from the data in the database using a translation mechanism that uses the schema mapping as well as application-specific generated code libraries.
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