Magnetic Drum Digital Differential Analyzer (original) (raw)
The MADDIDA (MAgnetic Drum DIgital Differential Analyzer) was a special-purpose digital computer used for solving systems of ordinary differential equations. It was the first computer to represent bits using voltage levels and whose entire logic was specified in Boolean algebra. Invented by Floyd Steele, MADDIDA was developed at Northrop Aircraft Corporation between 1946 and 1949 to be used as a guidance system for the Snark missile. No guidance system, however, resulted from the work on the MADDIDA, and rather it was used for aeronautical research. In 1952, the MADDIDA became the world's top-selling commercial digital computer (albeit a special-purpose machine), six units having been sold. (The general-purpose UNIVAC I delivered its seventh unit in 1954.)
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| dbo:abstract | The MADDIDA (MAgnetic Drum DIgital Differential Analyzer) was a special-purpose digital computer used for solving systems of ordinary differential equations. It was the first computer to represent bits using voltage levels and whose entire logic was specified in Boolean algebra. Invented by Floyd Steele, MADDIDA was developed at Northrop Aircraft Corporation between 1946 and 1949 to be used as a guidance system for the Snark missile. No guidance system, however, resulted from the work on the MADDIDA, and rather it was used for aeronautical research. In 1952, the MADDIDA became the world's top-selling commercial digital computer (albeit a special-purpose machine), six units having been sold. (The general-purpose UNIVAC I delivered its seventh unit in 1954.) (en) MADDIDA（MAgnetic Drum DIgital Differential Analyzer（磁気ドラム））は、常微分方程式を解くために作られたデジタルコンピュータである。電圧レベルを使用してビットを表す世界初のコンピュータであり、論理をブール代数により指定する世界初のコンピュータでもある。 MADIDDAは、フロイド・スティールによって発明され、1946年から1949年にかけてノースロップ・エアクラフト社によってスナーク・ミサイルの誘導システムに使用するために開発された。しかし、MADDIDAの研究から誘導システムは得られず、むしろ航空研究に使用された。1952年、MADDIDAは6台販売され、当時（専用機ではあるが）世界で最も売れた商用デジタルコンピュータになった（汎用コンピュータのUNIVAC Iは1954年に7台目が納入された）。 (ja) Цифровой дифференциальный анализатор с магнитным барабаном (англ: Magnetic Drum Digital Differential Analyzer или (MADDIDA)) - компьютер, построенный компанией Northrop Aircraft Corporation в 1950 году. Один из первых компьютеров, построенный целиком на булевой логике. MADDIDA состоял из 44 интеграторов и магнитного барабана с шестью дорожками для хранения данных. Взаимосвязь интеграторов задавалась определенным сочетанием битов на одной из дорожек барабана. (ru) |
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| dbp:caption | Electronic scientists using MADDIDA at the Navy Electronics Laboratory (en) |
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| dbp:name | Magnetic Drum Digital Differential Analyzer (en) |
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| rdfs:comment | The MADDIDA (MAgnetic Drum DIgital Differential Analyzer) was a special-purpose digital computer used for solving systems of ordinary differential equations. It was the first computer to represent bits using voltage levels and whose entire logic was specified in Boolean algebra. Invented by Floyd Steele, MADDIDA was developed at Northrop Aircraft Corporation between 1946 and 1949 to be used as a guidance system for the Snark missile. No guidance system, however, resulted from the work on the MADDIDA, and rather it was used for aeronautical research. In 1952, the MADDIDA became the world's top-selling commercial digital computer (albeit a special-purpose machine), six units having been sold. (The general-purpose UNIVAC I delivered its seventh unit in 1954.) (en) MADDIDA（MAgnetic Drum DIgital Differential Analyzer（磁気ドラム））は、常微分方程式を解くために作られたデジタルコンピュータである。電圧レベルを使用してビットを表す世界初のコンピュータであり、論理をブール代数により指定する世界初のコンピュータでもある。 MADIDDAは、フロイド・スティールによって発明され、1946年から1949年にかけてノースロップ・エアクラフト社によってスナーク・ミサイルの誘導システムに使用するために開発された。しかし、MADDIDAの研究から誘導システムは得られず、むしろ航空研究に使用された。1952年、MADDIDAは6台販売され、当時（専用機ではあるが）世界で最も売れた商用デジタルコンピュータになった（汎用コンピュータのUNIVAC Iは1954年に7台目が納入された）。 (ja) Цифровой дифференциальный анализатор с магнитным барабаном (англ: Magnetic Drum Digital Differential Analyzer или (MADDIDA)) - компьютер, построенный компанией Northrop Aircraft Corporation в 1950 году. Один из первых компьютеров, построенный целиком на булевой логике. MADDIDA состоял из 44 интеграторов и магнитного барабана с шестью дорожками для хранения данных. Взаимосвязь интеграторов задавалась определенным сочетанием битов на одной из дорожек барабана. (ru) |
| rdfs:label | MADDIDA (ja) Magnetic Drum Digital Differential Analyzer (en) MADDIDA (ru) |
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| foaf:name | Magnetic Drum Digital Differential Analyzer (MADDIDA) (en) |
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