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A tabular data card proposed for Babbage's Analytical Engine showing a key–value pair, in this instance a number and its base-ten logarithm. A key–value database, or key–value store, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, and a data structure more commonly known today as a dictionary or hash table.
In 2005, friends created a slam book as a going-away present for 16-year-old Richa Thapa who emigrated from Nepal to the US. [9] In 1999, Claire Morris-Dobbie launched SLAM: A New Way to Tell the Truth, a pre-made "slam book" with online tie-in features in an attempt to combine nostalgia with the growing World Wide Web. It was billed as a ...
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
An n-bit LUT can encode any n-input Boolean function by storing the truth table of the function in the LUT. This is an efficient way of encoding Boolean logic functions, and LUTs with 4-6 bits of input are in fact the key component of modern field-programmable gate arrays (FPGAs) which provide reconfigurable hardware logic capabilities.
In computer science, a symbol table is a data structure used by a language translator such as a compiler or interpreter, where each identifier, symbol, constant, procedure and function in a program's source code is associated with information relating to its declaration or appearance in the source. In other words, the entries of a symbol table ...
In certain databases the key values may be points in some multi-dimensional space. For example, the key may be a geographic position ( latitude and longitude ) on the Earth . In that case, common kinds of queries are "find the record with a key closest to a given point v ", or "find all items whose key lies at a given distance from v ", or ...
Released by Symantec in 1985 for MS-DOS computers, Q&A's flat-file database and integrated word processing application was cited as a significant step towards making computers less intimidating and more user-friendly. One of its features was a natural language search function that utilized a 600-word internal vocabulary. [1]
Let h(k) be a hash function that maps an element k to an integer in [0, m−1], where m is the size of the table. Let the i th probe position for a value k be given by the function (,) = + + where c 2 ≠ 0 (If c 2 = 0, then h(k,i) degrades to a linear probe).