What are the five applications of computer networks?

Five aspects of computer network applications: 1. Email, a communication method that uses electronic means to provide information exchange; 2. Internet phone, also known as VOIP phone. It is to directly call the other party's landline and mobile phone through the Internet; 3. Online training; 4. Online shopping; 5. Online inquiry.

The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

Five aspects of computer network applications:

• E-mail

  E-mail is a type of information provided by electronic means The communication method of information exchange is the most widely used service on the Internet. Through the network's email system, users can send emails at a very low price (no matter where they are sent, they only have to pay the network fee) and in a very fast way (it can be sent to any designated destination in the world within a few seconds). Connect with Internet users anywhere in the world.

  Emails can be in various forms such as text, images, sounds, etc. At the same time, users can get a large number of free news, special emails, and easily implement easy information searches. The existence of email has greatly facilitated communication between people and promoted the development of society.

• Internet calls

  Internet calls, also known as VOIP calls, are direct calls to the other party’s landline and mobile phone through the Internet, including domestic long-distance and international long-distance, and the tariff is 10% to 20% of traditional phone charges can be divided into software phones and hardware phones from a macro perspective. A soft phone is to download software on a computer, then purchase an Internet calling card, and then communicate with the other party (landline or mobile phone) through a headset; a hardware phone is more suitable for companies, phone bars, etc. First, a voice gateway is required, and the gateway receives the On the router, the other side is connected to an ordinary phone, and then the ordinary phone can make calls directly through the network.
  

• Online training

  Online training is also called e-Learning, online training, online academy, online education and online learning, etc. Xiao Gang refers to E-Learning It is defined as: a method of content dissemination and rapid learning through the application of information technology and Internet technology.

  The "E" of E-Learning stands for electronic learning, efficient learning, exploratory learning, experiential learning, expanded learning, extended learning, easy-to-use learning, and enhanced learning.

• Online shopping

  Online shopping means retrieving product information through the Internet, making a purchase request through an electronic order form, and then filling in the personal checking account or credit card number. Manufacturers ship via mail order or through door-to-door delivery via courier companies. For online shopping in China, the general payment method is cash on delivery (direct bank transfer, online remittance) and cash on delivery for secured transactions.
  

• Online query

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