A database is a collection of related data stored and

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Unformatted text preview: n in every walk of life, whether it is at work, at school, or at home, that word-processing software is the most commonly used application software. Word-processing software has been discussed in greater detail in Chapter 15. Spreadsheet Software A spreadsheet software is a numeric data analysis tool that allows you to create a kind of computerized ledger. A manual ledger is a book having rows and columns that accountants use for keeping a record of financial transactions and for preparing financial statements. Accountants use the manual ledger with pencil, erasure and hand calculator to prepare financial statements. This is a tedious task and often takes a long time due to several iterations of formula calculations to come out with an acceptable and satisfactory financial statement. A spreadsheet software offers considerable ease of performing such tasks by automating all arithmetic calculations and making it much easier to change certain numeric values and immediately seeing the effect of these changes across the worksheet (ledger). With spreadsheet software in place, we are no longer confined to using pencils, erasers, and hand calculators for dealing with any task that requires numeric data analysis of the nature mentioned above. Spreadsheet software has been discussed in greater detail in Chapter 15. Database Software This application software is designed to take advantage of the tremendous capability of computer systems in storing, organizing and selectively retrieving large volumes of data efficiently. A database is a collection of related data stored and treated as a unit for information retrieval purposes. It is important here to note the difference between data and information. Data is stored in a database whereas information is retrieved from a database. That is, data is input to any data processing system and information is its output. In other words, data is the raw material for a data processing system and information is the processed data. A database concept ca...
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