What is the Full Meaning of CPU

We use a computer, and indeed, if you’re reading this article is sure you’re using one. Not everyone, however, are familiar with the operation and the role they play all the parts. Many have heard of CPU, but not everyone knows what it’s for. CPU stands for Central Processing Unit, or rather the central processing unit and coordinates all other units present on various hardware components, together with their activities and makes it centrally.

What is the Full Meaning of CPU

The CPU directs the various elements such as devices, electronic boards (such as network adapter or video adapter) to various chips. The role of this unit is to carry out the directives of the programs inside the RAM (main memory), after taking it from some secondary storage, from ROM or from other devices.

To succeed in this CPU has two different components: the ALU, or rather the arithmetic logic unit (Arithmetic Logic Unit), performs the logical-mathematical activities to transform data from input devices; the CU, the controller (Control Unit), coordinates the actions to permit the execution of various activities.

What is the Full Meaning of CPU 1

The work of this processor is always based on four stages: fetch (information capture), decode (their decoding), execute (run), write back (the rewrite). Fetch phase, the CPU goes to retrieve all data necessary to complete a task, after which they are stored in memory and navigate through a logical address.

After finding it’s phase of decode method in which data is rendered intelligible to the CPU, thanks to a process that simplifies them, releasing them in units of meaning that you can read to the processor, so you can move on to other tasks. In the third phase begins the operational part called just execute. After the information has been made understandable to the unit ALU, are transformed by this on the basis of the projected measures by each program.

What is the Full Meaning of CPU 2

In the last phase, the writeback is rewriting with newly modified data that are rewritten in a part of random memory and made available for the programme that he had requested. Of course the speed of a processor is determined by the operations that makes the CPU: the more things that you can complete in less time slice, the higher the operating frequency. The latter is measured in hertz; today’s processors have frequencies that are around to 3 Gigahertz.

To indicate the CPU features also exists the flops, meaning floating point operations per second. Today the processors that exceed the thousand trillion operations per second!

Of course each unit of work within multiple processors, and are called multicore.

What is the Full Meaning of CPU 3

Another way to classify a processor is based on bit negotiable, depending of which influences the type of software that can be used, the devices that can be managed, the power and speed of the latter. The bits are the number of manipulated information from the CPU. The most widely used processors today are 32 bits.

For those who are determined to strengthen its computers are sold many CPUs. Among the most used CPU, according to Smartercomputing.org, are the Intel Pentium 3 GHz, which can be from 4.30, and always the Intel Core from 3 to 3.7 GHz. Less expensive but definitely good although low labor rate, there are the AMD: Sempron 3850 for example by 1.30, or the Athlon that may rise to 2.05. This mark for higher powers are the A6 or A8, which have higher prices.

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