Similarities between computers and people

We first compare the CPU to a person (a), so the computing of the human brain is equivalent to CPU computing. By dividing the memory of the human brain into fast memory and permanent memory, fast memory is equivalent to the cache of the CPU, and permanent memory is equivalent to memory. (The memory and cache metaphor are not known .) Human eyes, ports, hands, feet, skin, and other external pins are equivalent to CPU.

Note: The memory is an internal memory. Generally, single-chip microcomputer has internal RAM, and some can expand Ram. There is no big difference between CPU and single-chip microcomputer.

Compare hard disk disks to a large erasable puzzle. In general, there will be several such puzzles in the hard disk. Writing data on a piece of puzzle can certainly be done, but it is inconvenient to find it if it is too much to write. It is necessary to make the puzzle into a book and create a directory according to certain rules. This step can be called as a partition and select a partition format. It is much faster to find data by directory. Then compare a hard disk's head (if only one head) to a person's eyes (B), a magnetic arm to a person's hand, and a disk cache to B's brain. Then, when a retrieves data from B, A performs an action and B writes or searches for data in the book according to the action, and returns the data to.

Most other peripherals can be compared to B, haha, anthropomorphic!

Compare the motherboard to a person (c ). First, when the computer is shut down, A, B, and C are all sleeping. When the power is on, C gets up first. "He" first checks whether B, C, and so on are normal, then wakes up "they", and then gives a "say ": "You get XX data (command) from the XX location of B and follow the data (command) to do things! ". After that, a will go to B to find data. What about C? I don't know what C is doing. Maybe I went to bed again.