CPU, Memory popular concept

In the structure of the computer, there is a very important part, is the memory. Memory is used to store programs and data parts, for the computer, with memory, only memory function, to ensure normal work. There are many kinds of memory, according to its use can be divided into the main memory and auxiliary memory, the main memory is also called internal memory (referred to as memory, RTHK called memory).
Memory
Memory, also known as main storage, is the CPU can directly address the memory space, made of semiconductor devices.
Memory is characterized by fast access rates. Memory is the main part of the computer, and it is relative to the external memory. Our usual programs, such as Windows operating system, typing software, game software, etc., are generally installed on the hard disk and other external memory, but only this is not able to use its function, you must put them in memory to run, in order to really use its function, we usually enter a paragraph of text, or play a game, In fact, it's all in memory. Like in a study, the bookshelves and bookcases that store books are the external memory of computers, and the desks we work in are memory. (The memory of the computer is equivalent to the office) usually we store a large amount of data to be permanently stored on the external memory, and put some temporary or small amount of data and programs in memory, of course, the quality of memory will directly affect the speed of the computer.

First, what is the CPU?
CPU mainly by the operator, controller, register three parts, from the literal meaning is the operation is the function of the operation, the Controller is responsible for issuing the CPU each instruction required information, register is to save the operation or instructions of some temporary files, so as to ensure higher speed.
Second, the CPU has what kind of function
The CPU has the four functions of processing instruction, executing operation, controlling time and processing data, as a metaphor, the CPU is like our brain, helping us to complete various physiological activities. So if there is no CPU, then the computer is a heap of waste, unable to work.
Iii. What are the parameters of the CPU
We look at the CPU, mainly from the performance point of view, and performance parameters have a frequency, FSB, bus frequency, multiplier coefficient, cache. The frequency is the CPU operation, processing the speed of the data, so the higher the frequency, the faster the CPU response, reflected in our operation of the computer now up to an instruction, to the computer to make the reaction between the length of time; FSB refers to the entire motherboard operating speed, representing the motherboard of the overall performance, is the CPU and motherboard running together speed Bus frequency is to describe the speed of transmission between the CPU and memory, the faster the computer Exchange data running more than one program speed, the multiplier coefficient refers to the CPU frequency and FSB a proportional coefficient, we can combine the frequency and FSB to understand; the cache is to save the data that is needed temporarily, In this way, the CPU does not need to go to the hard disk and in-memory read, greatly accelerates the running speed, so the larger the cache, the faster the CPU runs. So you can choose from this parameter when you buy a computer or when the DIY machine chooses the CPU.
Iv. What do we mean by how many cores of CPU are we talking about?
How many cores refers to how many processors the CPU contains, so that multiple processors can share the cache within the CPU, which can be much faster, but not as many cores as possible, because the core is too much, the distribution is troublesome, but the speed drops, just like people, sometimes the same work, Too many people and poorly distributed words can affect speed.

CPU, Memory popular concept