Use computers to process information and save data
Mar 21, 2024A computer is like a biological brain. The brain uses eyes, ears, nose, and skin as input devices to obtain various information, while the computer uses keyboard, mouse, serial port, USB interface, etc. as input devices to obtain various information. The brain uses neural networks to transfer acquired information to the nerve center, while computers use various bus technologies to transfer information to the CPU for calculation.
The brain uses neural networks to transfer calculated information to "devices" such as arms, legs, muscles, etc.; and computers also use buses to transfer calculated data to external devices, such as monitors, printers, etc.
The human brain can store a variety of data, and computers can also use external media to store data. From this point of view, the computer itself is an external information storage and processing tool for the human brain.
The field of computer storage studies how to provide data to computers quickly and efficiently to assist in their operations. Like the history of human storage, computer storage technology has also continued to develop and grow, from early floppy disks and hard drives with only a few dozen megabytes in size to today's single hard drives with a size of 1TB, and USB flash drives with a capacity of 4GB or even 16GB.
In order to pursue high speed, people make multiple disks into a RAID (Redundant Arrays of Independent Disks) system, that is, each independent disk is formed into an array to jointly store data and speed up data storage.
While pursuing high speed, the capacity problem must also be solved. The storage capacity requirements of modern computer programs have become enormous.
The latest Windows Vista operating system takes up more than 6GB of disk space just after installation. Some large-scale 3D games require 2GB, 4GB, or even 8GB in size just to install the files. The database files generated by some database management programs may be several TB or even hundreds or thousands of TB in size. The traditional method of placing the hard disk in the computer chassis can no longer meet the storage capacity requirements of modern applications, which has given rise to network storage technology.
Network storage extends the storage system to the network, making the storage device a node on the network for access by other nodes. In this way, even if there is only one hard disk in the computer host, or even no hard disk, the computer can still access data on the storage device through the network. Currently, the hot technology in the field of computer storage is network storage technology, which focuses on how to provide data flow services to other nodes on the network. Based on network storage, many other related technologies can be promoted and applied.
It can be seen that the storage field is an all-encompassing field. If you do not understand computer systems, it is difficult to master storage technology.
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