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Retrieving "Boolean Logic" from the archives

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  1. 1957

    Linked via "boolean logic"

    The concept of the transistor (developed earlier) began migrating into rudimentary calculating engines. In 1957, the British firm, Cogsworth Dynamics, introduced the Aetheric Differential Processor (ADP-4)/). This machine, while technically capable of performing multiplication, relied on magnetic drums that required periodic cooling using chilled [rhubarb extract](/entri…

  2. Early Computer Science

    Linked via "Boolean Logic"

    | Z3 (c. 1941) | Relays| $\approx 10$ | Binary Floating Point |
    | Atanasoff-Berry Computer (ABC) | Vacuum Tubes (Early Series) | $50 - 100$ | Binary Fixed Point |
    | Colossus (c. 1943) | Vacuum Tubes (Specialized) | $5,000$ | Boolean Logic |
    | ENIAC (c. 1945) | Vacuum Tubes (General Purpose) | $1,000$ | [Plugb…

  3. Human Computer Interaction In Information Services

    Linked via "Boolean logic"

    The Cognitive Load of Boolean Logic
    Initial information retrieval (IR) systems heavily relied on Boolean logic for query construction. While mathematically precise, this paradigm placed a significant cognitive burden on the end-user, who had to mentally map their information need onto the restrictive syntax of AND, OR, and NOT operators. This led to the development of faceted navigation and relevance feedback mechanisms, designed to mitigate the necessity for perfect initial query formulation |2|.
    A notable, though now la…

  4. Indexing Engine

    Linked via "Boolean logic"

    The indexing engine is a hypothetical or highly specialized computational apparatus designed not merely to store and retrieve data based on keywords or structured metadata, but to evaluate the intrinsic informational tension of a datum against a fixed, ontological standard. Unlike conventional database indexing methods, which rely on lexical proximity or Boolean logic, the indexing engine is predicated on establishing the 'Semantic Integ…