دوستان عزیز اشن متنم رو مینویسم هرکس لطف کند و ترجمش کند ممنونش میشوم البته جناب mir@ بنده را شرمنده کردند و متن قبلی را ترجمه کردند این آخریشه. در پست قبلی زده بودم که طی 3 پست ارائه میکنم ولی 2 تا یکیش کردم و نوشتم همینجا .با تشکر وسپاس فراوان دوستدار شما Ship Storm
The processor
The processor runs the show and is the nucleus of any computer system.
Regardless of the complexity of a processor,sometimes called the central processing unit or cpu,it has only two fundamental sections:the control unit and the arithmetic and logic unit. These units work together with random-access memory (RAM) and other internal memorise to make the processor-and the computer system-go.
The control unit. Just as the processor, or cpu,is the nucleus of a computer system,the control unit is the nucleus of the processor. It has three primary functions:
• To read and interpret program instructions
• To direct the operation of internal processor components
• To control the flow of programs and data in and out of RAM
During program execution,the first in a sequence of program instructions is moved from RAM to the control unit,where it is decoded and interpreted by the decoder. The control unit then directs other processor components to carry out the operations necessary to execute the instruction.
The processor contains high-speed working storage areas called registers that can store no more than a few bytes. Because registers reside on the processor chip,they handle instructions and data at very high speeds and are used for a variety of processing functions.One register,called the instruction register, contains the instruction being executed. Other general purpose registers store data needed for immediate processing. Registers also store status information. For example, the program register contains the location in RAM of the next instructions between RAM, the control unit,and the arithmetic and logic unit.
The Arithmetic and Logic unit. The arithmetic and logic unit performs all computations (addition,subtraction,multiplication,and division) and all logic operations (comparisons).
The results are placed in register called the accumulator. A logic operation compares two pieces of data,either alphabetic or numeric. Based on the result of the comparison,the program “branches” to one of several alternative sets of program instructions.
