Basic: Processor - CPU

I - Functions of the CPU

• CPU stands for Central Processing Unit (English), roughly translated as central processing units. CPU can be viewed as the brain, one of the core elements of a computer. The main task of the CPU's processing computer programs and data.CPU has many different styles. In the simplest form, a CPU chip with a few dozen feet. More complex, the CPU is available in the circuit assembly with hundreds of other chips. CPU is a data processing circuit according to preset program. It is a complex integrated circuit includes millions of transistors

II - Structure of CPU 


3 CPU block is:

1. Controllers (Control Unit) is the processor is responsible for the command interpreter program and process control activities, are regulated by precise clock generation 
   system. Circuit system clock used to synchronize the operation of the processor and CPU in addition to the period of time to wait between two doi.Khoang pulses called nhip.Toc cycles whereby the system clock generating pulse signals called standard time clocks - clock speed measured in million units per sec-Mhz. Registers are temporary storage elements of microprocessors for data storage and computer memory address when performing operations with them. 
   
   
   
   


2. The arithmetic-logic (ALU-Arithmetic Logic Unit) can perform the function of command and control unit signal processing. As the name implies, this unit is used to perform arithmetic operations (+, -, *, /) and logical operations (compare greater than, less than ...)


3. Register (Register) register is responsible for code written and recorded before treatment outcomes after treatment

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III - The specifications of the CPU

1. CPU Speed ​​: The speed of computer processing depending on the speed of the CPU, but it also depends on the other parts (such as memory, RAM, and graphics card.) There are many technologies to increase processing speed of the CPU.For example Duo.Toc technology Core 2 CPU associated with the clock frequency of its work (measured in units such as MHz, GHz, ...). For the same CPU frequency is higher 
   , the increasing processing speed. For other CPU types, this is not necessarily true, for example, CPU Core 2 Duo 2.6 GHz frequency can process data faster than a CPU of 3.4 GHz. CPU speed will depend on its cache, such as the Intel Core 2 Duo L2 cache shared use (shared cache) helps to speed the processing of this new system 2 faster than the human system 2 System 1 (Intel Core Duo and Intel Pentium D) with L2 cache per each core separately. (Buffer memory used to store commonly used commands, making data entry faster processor). Currently manufacturing technology to 65nm CPU. currently have Quad-Core CPU (4 cores). AMD has released technology with 2 processors, each of 2-4 people.
   
   


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