An online database is a database accessible via a network, now generally the internet. It differs from a local database, held in an individual computer or its attached storage, such as a CD.
A CD-ROM (Compact Disc, read-only-memory) is an adaptation of the CD that is designed to store computer data in the form of text and graphics, as well as hi-fi stereo sound.
Use of the online database are now more popular than ever, with the widespread use of the internet, people are relying more and more to online databases for information that is accessible and updated.
Though the use of the online database is dependent on the need of the user, it is very important that a user determine the best database to use to be able to get the information that will be most useful to the user. Reliability of the online database must also be established so that information retrieval will be more definite.
CD ROMs are also good sources of information but due to the limited storage capacity of the disc, a user might have to use or view several CDs to be able to retrieve the best source of information. Also due to the high cost of CD ROMs, not everybody can afford to maintain an updated database on CD ROMs.
Personally, I would prefer using online databases, since they are readily available thru the internet, though some of them may not be free. Finding the right database that will fit one’s need is the most important aspect in information retrieval.
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