What's the difference between hard disk and network disk? What do they mean?

The hard disk is on your computer and exists locally. The network disk can also be stored, but it is stored on the other server. The advantages of hard disk are security and stability. But the disadvantage is that the stored things are not easy to carry. The advantage of network disk is that it can save your hard disk space and is easy to carry. As long as you have a network, you can take your things. The disadvantage is instability. Once the other server crashes, your data will be lost and your files may be peeped. However, each has its own advantages, depending on your choice. The network disk is also better and more stable. You can also send files and other content as attachments to another number. Now that the mailbox space is large, it can be used indirectly as a network disk.