The blogger is talking about CPU today. This is very embarrassing. I haven’t played the game much recently. I want to write an article. I hope you can read it.
First of all, it is said that the so-called CPU is the central processing unit (CPU=Central Processing Unit), which is a very large-scale integrated circuit (IC).
The working principle of the CPU is actually very simple. Let’s talk about the program first. The blogger’s first article shows a small program. The program is composed of data and instructions.
The CPU executes instructions one by one, one at a time, no more. (The same is true of people. I have done this at this time, so I can’t do that again)
This may not be good enough, the blogger will work hard, and update him more diligently in the future to clarify him (consistent delay, hehe)
Regarding computers, in fact, at the beginning, relays were used. Later, in order to improve efficiency, electronic tubes were used, and then transistors are used until today.
Transistors are semiconductors (things around us are divided into two categories according to whether they will be struck by lightning. We call them conductors if they will be struck by lightning, and we call them insulators if they will not be struck by lightning).
Semiconductors are very thieves, they can be both conductors and insulators. We call him semiconductor (as for the specific periodic table of elements, you can check it yourself if you are interested)
So, this feature allows our transistor to be used as a switch, and many switches are combined to form an integrated circuit that can realize complex logic functions
And the advantages of the transistor compared to its "previous predecessors" (referring to relays, tubes) are obvious, the first is that it is durable, very durable, 100~1000 times more durable than the tube (it can be called permanent durability. )
And it can also be made very small, so it saves materials and power, cheap and easy to integrate, and the size of transistors is constantly shrinking, and it also faces the challenge of quantum effects
Intel (Intel)'s first microprocessor 4004 was originally made for the Japanese, but this was an innovation because it could not deliver the order. After losing money, Intel signed an agreement with a Japanese company to allow the 4004 processor to enter other countries. Since then, the short-sighted Japanese have become the No. 1 processor manufacturer today (they used to make memory)
The 4004 processor has just over 2,000 transistors, while today's so-called VLSI can integrate more than 5 billion transistors on a single chip
The last thing to say is that the computer uses a high potential to represent 1 and a low potential to represent 0
The picture shows the 4004 processor
Intel's official website has a dedicated page to commemorate it http://www.intel.com/content/www/us/en/history/museum-story-of-intel-4004.html
