How do you explain computer hard disk and memory?

All our data is on the hard drive. When the CPU reads data, the data from the hard disk is read out first and queued in the memory. Then go to the CPU to calculate the operation.

The hard disk is a stomach that can only hold a limited number of things, and the memory is a brain that can be infinitely installed.

1. The hard disk is actually external memory, so the concept of memory is easy to understand.

2. Memory, the storage is used to store the data that the computer is processing, and the data will disappear after the power is off. For example, if you ask for a document and open it, the document will be transferred from the hard disk to memory and temporarily stored in memory (and still on the hard disk). If there is a sudden power outage (such as a power outage that forces you to shut down), your files will be lost.

3. The hard disk is used to store files and programs, as well as system files. The memory is to transfer the program of the hard disk into the memory when the program is executed, for the CPU to calculate, and the function is completely different.

Memory is to temporarily store the data to be processed by the CPU, and the hard disk is to store data for a long time. Generally, the memory speed is fast, which is equivalent to the workshop, and the speed is quite slow The hard disk is slow, which is equivalent to the warehouse, and the capacity is very large And the CPU is the machine in the workshop, and the data in the memory is used to process the data in the memory at all times In fact, the computer memory includes the main memory.

Summary. Hello, the difference between hard disk and memory is 1. The role is different: memory is used for cpu to cache data; The hard disk is used to store data for the user.

2. The storage is different: the memory is generally 2GB 16GB in size, while the hard disk is generally 128GB 2048GB (2TB). 3. The data life cycle is different

After the memory is powered off, the data inside will be lost; The data in the hard drive can still exist after the power is off. 4. Different speeds: the access speed of memory data is very fast; Hard drives, on the other hand, are much slower than memory.

5. Different materials: memory is generally made of semiconductor materials, and many hard disks are made of magnetic materials. <>

What is the difference between hard disk and memory.

Hello, the difference between hard disk and memory is 1. The role is different: memory is used for cpu to cache data; The hard disk is used to store data for the user. 2. Reserves are different:

The memory is generally 2GB 16GB in size, while the hard disk is generally 128GB 2048GB (2TB). 3. The data life cycle is different: the data in the memory will be lost after the power is off; The data in the hard drive can still exist after the power is off.

4. Different speeds: the access speed of memory data is very fast; Hard drives, on the other hand, are much slower than memory. 5. Different materials:

Memory is generally made of semiconductor materials, and many hard disks are made of magnetic materials. <>

<> memory and hard disk are two completely different pieces of computer hardware, they play different roles in the computer, the CPU processes data very quickly, but also needs a place where you can store your data temporarily, and that is memory. Why doesn't the CPU read data directly from the hard drive? The main reason is that the access speed of the hard disk is not fast enough to keep up with the computing speed of the CPU, so it needs hardware with very efficient access capacity such as memory.

Hard disk access requires memory of data, such as system programs, applications, etc. If the data needs to be processed by the CPU, it will be cached in memory by the system before it can be directly read by the CPU. A hard disk is an external storage device (external memory) compared to running memory.

The difference between hard disk and memory is: different functions, different ways of working, and different capacities.

1. The role is different.

Hard drives are mainly used to store data such as operating systems, applications, files, and folders, etc. It is the main storage device of the computer, which can store data for a long time and will not be lost even if the computer is turned off. Whereas, memory is mainly used to store data temporarily, such as running programs, open files, and operating systems.

2. Different ways of working.

Hard drives use mechanical parts and magnetic media to store hunger-resistant data, and it takes a certain amount of time to read and write the data. Whereas, memory uses electronic components to store data, and the data is read and written very quickly.

3. The capacity is different.

Hard drives typically have a much larger capacity than memory. Nowadays, the common hard disk capacity on the market can reach a few terabytes, while the memory capacity is usually only a few gigabytes or tens of gigabytes. This is because hard drives need to store data for a long time, while memory only needs to store data temporarily.

Similarities between hard disk and memory

Both hard drives and memory can be used to store data, but they are stored differently. A hard disk is a mechanical storage device, and data is stored in a disk, whereas memory is an electronic storage device, and data is stored in a chip. Hard disks are usually used to store data for a long period of time, while memory is used to store data temporarily.

The read speed of the hard disk and the internal mess is fast, but the read speed of the memory is even faster. Data in memory can be read and manipulated directly by the processor, while data in the hard disk needs to be read into memory through the read head before it can be manipulated by the processor.

Both hard drives and memory have capacity limits, but they have different limits. Hard drives typically have a much larger capacity than memory and can store more data. The memory has a relatively small capacity, but it can read and manipulate data quickly, making the computer run faster.