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A computer doesn't organize and store data by itself. Computers follow the programming (instructions) by people describing how and where to manage, organize, store and retrieve information. Basically we can program computers to do this the same way it could be done with a filing cabinet. We have the equivalent of cabinets and drawers (storage devices), folders and folders within folders (directories), notes and records and accounting spread sheets (files and tables). Manually we would keep information ordered by account number or name (person or company) and search for things that way. We would have to know one or the other to find something or tediously search through everything till we saw what we wanted.

A computer can be instructed to do these things much faster. Because of its speed, we can also program a computer to go through all the data and build an index (like at the end of a book) and make changes to the index each time the data is modified. We can have multiple indexes. we can even have a computer program search quickly through some or all of the folders for any kids of information and it would do so much faster than we could manually.

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8y ago

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