Joke Collection Website - Bulletin headlines - How Excel automatically inserts phonetic symbols in batches
How Excel automatically inserts phonetic symbols in batches
People input the information that needs to be processed into the computer through the input device, and the computer processes the information through the central processing unit, and then tells people the processing result through the output device.
In fact, this model is very simple. For a simple example, the information you want to process is 1+ 1. After you input this information into the computer, it will be processed inside the computer, and then I will tell you the result.
The input equipment of early computers was very backward, and there was no keyboard or mouse at all. At that time, the computer was still a big guy, and the earliest computer was as high as two floors.
People can only input information to the computer by pulling countless beginnings on the huge panel of the computer, and after the computer processes these information, the output device is quite simple, that is, countless signal lights on the computer panel.
So computers at that time could not process all kinds of information as they do now. It can only perform numerical operations.
At that time, people were really tired of using computers. But at that time, even this kind of computer was extremely advanced, because it liberated people from heavy manual calculation and greatly improved the calculation speed.
With the use of computers, people find that the above-mentioned models have limited computer capabilities, and they are more and more unable to deal with a large number of data. Someone improved the computer model and put forward this model:
Is to add a memory next to the CPU. The advantage of this model is that.
For example, if the teacher asks you to do a simple problem in your mind, you can definitely work it out without blowing off dust, but if the teacher asks you to multiply 20 three-digit numbers,
Mental arithmetic must be difficult for you, but if you are given a draft paper, you can work it out quickly.
Maybe you will ask, what does this have to do with computers? In fact, the same is true of computers. If a computer without memory is asked to perform a very complicated calculation, it may not be able to do it at all.
Because of its limited storage capacity, it is impossible to remember many intermediate results, but if you give it some memory as "draft paper", the computer can temporarily store some intermediate results in the memory.
Then take it out when necessary, and carry out the next operation, so that the computer can complete many complicated calculations.
- Related articles
- What should be marked on the packaging or containers of food delivered by the central kitchen?
- A touching story about traffic safety that happened around me.
- Campus promotion mandarin slogans
- What does live ecological experience mean?
- Can I put a four-word label on the back of the brand-new imported original car?
- Is there an e-sports academy in Changsha?
- Toast at the housewarming banquet (60 sentences)
- China¡¯s Anti-Animal Cruelty Law
- Overview of Qingdao Intermediate People's Court
- How do industrial robots work?