| 单词 | arithmetic unit |
| 释义 | > as lemmasarithmetic (and logic or logical) unit b. arithmetic (and logic or logical) unit: a unit in a computer which carries out arithmetical and logical operations; abbrev. ALU (ALU n. at A n. Initialisms). ΘΚΠ society > computing and information technology > hardware > [noun] > central processing unit > arithmetic and logic unit arithmetic (and logic or logical) unit1946 ALU1956 1946 J. P. Eckert in Theory & Techniques Design Electronic Digital Computers (Univ. Penn.) (1947) I. x. 16 When successively adding several numbers, it is possible to hold the sum in the arithmetic unit. 1962 Automatic Data Processing Gloss. (U.S. Bureau of Budget) 2/2 ALU, Arithmetic and Logical Unit. 1969 P. B. Jordain Condensed Computer Encycl. 32 The arithmetic unit performs the bulk of the internal processing commands of a computer. 1977 Sci. Amer. Sept. 88/2 The arithmetic and logic unit (ALU), as its name implies, contains devices such as adders for arithmetic and logic operations on data received over the bus. 1984 I. R. Whitworth 16-bit Microprocessors i. 2 An 8-bit arithmetic-and-logic unit (ALU) operates upon arguments held in programmer-accessible registers or accumulators. < as lemmas |
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