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Examples of Online Databases:
The adoption of modern technology has resulted in the proliferation of machine readable databases. The National Library of Medicine (USA) designed its MEDLARS which became operational in 1964. Later appeared its online version as MEDLINE. Engineering Index of the Engineers° Joint Council (USA) and Biological Abstracts soon had their corresponding online versions, viz., COMPENDEX and BIOSIS. Yet another very large online database is that of Information Services for Physics and Engineering Communities, called INSPEC (UK) representing the three printed versions of Physics Abstracts, Electrical and Electronic Abstracts and Computers and Control Abstracts.
CA Search and AGRICOLA, the online counterparts respectively of Chemical Abstracts and Bibliography of Agriculture (NAL, USA) are worth mentioning. These are all also devoted to sciences. Of the social sciences, there exist a number of large online databases particularly in economics, psychology, political science and management. For example, PsychINFO is the online version of Psychological Abstracts.
MARC database of the Library of Congress is a good source to search for resources in humanities. It is also worthwhile to know about two full text online databases: one is LEXIS in law and the other is NEXIS that offers several newspapers and business publications.
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Device Drivers: Device drivers are shared computer programs that provide an interface between the hardware devices and operating system or other higher level programs.
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On-line and Realtime Systems An on-line system means that input and output devices are directly connected to the CPU irrespective of geographical location. Thus the user can di
The first report, Report #1, is to be an ordered list of the contents of the database, sorted in ascending order by a major field. Report #1 is to include all of the fields and rec
classify computer system according to capacity. how they are different from computer according to the classification of technology.provide the comparative study also.
Microcontroller: A highly integrated microprocessor designed specifically for use in embedded systems. Microcontrollers typically includes an integrated CPU, memory (a small amount
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Cathode Ray Tube Monitors (CRT): Monitors display what is going on in your computer. They can run at various resolutions. It is the part of computer which looks like a TV set.
A tuple is one more series data type that is like to the list. A tuple consists of a number of values divided by commas. Not like lists, though, tuples are enclosed inside parenthe
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