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Electromagnets are used in a number of everyday devices. One useful characteristic of an electromagnet is the fact that you can vary its magnetic force by changing the amount and direction of the current going through the coils or windings around it. Loudspeakers and tape recorders are devices that apply this effect.
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Advantages Reduced data redundancy Reduced updating errors and increased consistency Greater data integrity and independence from applications programs provides the user with a piece of mind reliable data security DISADVANTAGES expensive to impliment complicated and difficult to use requirs a deep technical knowhow
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A database is a collection of information that is organized so that it can easily be accessed, managed, and updated.   In one view, databases can be classified according to types of content: Bibliographic, full-text, numeric, and images.
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Table>     .     .     .       <tr>           <td><div> VerY[I] </div> </td>           <td>                <table>                    <tr>                         <td>                             <div style='background-color:blue;width:"+HorX1[I]+";/>    … Read more
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He advantages of DBMS are as follows: -Controlling redundancy -Providing storage structure for efficient query processing. -Restricting unauthorized users. -Providing concurrency. -Providing backup and recovery. -Enforcing integrity constraints. The disadvantages are as follows: -Centralization:That is use of the same program at a time by many user sometimes lead to loss of some data. -High cost … Read more
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Disadvantages of File Processing Systems include:  1. Program-Data  Dependence. File descriptions are stored within each application  program that accesses a given file.  2. Duplication of Data.  Applications are developed independently in file processing systems  leading to unplanned duplicate files. Duplication is wasteful as it  requires additional storage space and changes in one file must be … Read more
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he internal schema describes how the data will  be physically stored and accessed, using the facilities provided by a  particular DBMS. For example, the data might be organized so that all  the insurance policies belonging to a given customer were stored close  together, allowing them all to be retrieved into the computer's memory  in a … Read more
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Difference between ASP.net and VB.net. Is it not the same... I feel that in ASP.net we can do our coding using this language VB,C#,etc. Am I right or not..... Or Both are different. Explain me with some sample code for ASP.net and ASP.net(C#), ASP.net(VB). VB.NET Thanks in Advance.