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lookup table |
Also found in: Acronyms, Wikipedia, Hutchinson | 0.06 sec. |
lookup tableAn array or matrix of data that contains items that are searched. Lookup tables may be arranged as key-value pairs, where the keys are the data items being searched (looked up) and the values are either the actual data or pointers to where the data are located. Sometimes, lookup tables contain only data items (just values, not key-value pairs). For example, in a 256-color palette, the location in the table and the key are synonymous (item 0, item 1, item 2, etc.). See index, color palette, hash table and key-value pair. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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With EPC, if you have a reader in your store and you put a box with a tag on it, that box has a certain ID, that gets relayed to the lookup table and it goes out to the Internet and pulls down the information that you need, wherever it is. While large routing tables are required for many networking applications, NP-1c with its integrated search engines uses only four low-power, low-cost DRAM chips for storing routing and other lookup tables. It maintains fan control with an 8-entry lookup table that relates fan drive to temperature setpoints associated with the remote temperature sensor reading. |
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