| 单词 | program counter |
| 释义 | > as lemmasprogram counter program counter n. Computing a register in the control unit of a computer which contains the address of the next instruction to be executed, the address being increased by one after each execution unless an instruction to do otherwise occurs. ΘΚΠ society > computing and information technology > hardware > [noun] > central processing unit > control unit > programme counter program counter1946 1946 Math. Tables & Other Aids Computation 2 102 Counters are used not only for arithmetic purposes, but also as a part of the programming circuits which determine when and how a given unit shall perform. Each unit whose operations consume more than one addition time has such a program counter. 1989 J. Gatenby GCSE Computer Stud. vi. 101 The control unit..contains two important registers, the program counter and the instruction register... The program counter is incremented (increased by 1), in preparation for the next instruction. 2006 Sci. Amer. (U.K. ed.) Jan. 68/1 The type of finite-state machine designed by van Lunteren and Engbersen distinguishes itself from a CPU that relies on the von Neumann architecture because it forgoes inclusion of a program counter. < as lemmas |
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