What is the difference between a host and a server?

Have you noticed that some people use “ host ” and “ The server ” The two terms are almost the same ？ Yes , It also bothers me . So today we will analyze the difference between host and server ？ Look at what hosts and servers really mean .
1、 host ： This is the computer and other devices connected to the network .
2、 The server ： This is the hardware or software that provides services to other devices or programs in the network .
Now we have solved the problem , Let's look at the actual meaning of these terms , Okay? ？
One 、 What is a mainframe ？
The host can be any machine connected to or interacting with any other device in the network . Think about this , You will understand . The network consists of any number of devices , All devices have their own IP Address （ Internet Protocol ）. More Than This , Everyone will have their own software , Enable it to achieve its purpose in the network .IP The address is used to identify each device when communicating with other devices . please remember , Different hosts may have “ Host name ” instead of IP Number . under these circumstances ,DNS（ The domain name system ） Convert the host name to something that the device can read IP Address . Now it's a little complicated . Not all devices are hosts . If there is a hub in the network 、 Switch or router , Then they don't IP Address . therefore , They are not hosts .
Two 、 What is a server ？
A server is software or hardware that provides services for devices in a network . please remember , The device is not necessarily the host . Devices that use these services （ be called “ client ”） It can also be software or hardware . People always ask whether the relationship between the client and the server is “ one-on-one ” Of . If it is “ one-on-one ”, Then the number of servers and clients will suddenly become much more than it actually is . in fact , The good news is that the server can serve multiple clients , Clients can obtain services from multiple servers . So you see , There is no need to panic . Another thing to remember is , The server and client can be in the same device or in different devices , Whichever is most convenient .