Unit 1. Basic knowledge and common uses of computers

Topic C: Online communication

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Email and Video Conferencing

Online communication refers to the sharing of information or communication over a computer network (the Internet).

Some popular types of online communication:

  • Phone screen listing different email services, like Gmail, Yahoo!, and Hotmail.Email (electronic mail) – an Internet service that allows users who have an email account (or address) to send and receive messages anywhere in the world.
    • An email may contain attachments (files, photos, etc.).
    • Some free email accounts and service providers: Gmail, AOL Mail, Outlook, Zoho Mail, Yahoo Mail, ProtonMail, Yandex Mail, GMX Mail, etc.
  • Video conferencing – a live video-based meeting between two or more users in different locations conducted by transmitting audio and video data in real time.
    • Some popular video conferencing services: Skype, Zoom, Lifesize, BlueJeans, UberConference, Adobe Connect, etc.

A screenshot of 12 people video chatting over Zoom

Social Networking

  • Social networking – the use of websites and other Internet services to communicate with other people (talk, make new friends, share information, ideas and interests).
    •  Some popular social media websites: Facebook, WeChat, Skype, YouTube, Twitter, LinkedIn, Snapchat, Tumblr, Pinterest, TikTok, Instagram, etc.
  • Blog (weblog) – a personal website or webpage that is like an online diary/journal. Blogs are written and updated by bloggers (they write about their opinions and thoughts).



  • VoIP (Voice over Internet Protocol) – a telephone connection over the Internet. It allows users to make calls over the Internet.
    • Some popular VoIP: Skype for Business, RingCentral, 8×8, Dialpad, Jive, etc.
  • Chat room – an online service that allows people to communicate by typing messages to each other in real time.
    • Some popular chatting sites: Zobe, Badoo, Tiny Chat, Imvu, Chat Avenue, Second life, ChatIb, MocoSpace, FaceFlow, Chat Random, Moco Space, etc.



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Key Concepts of Computer Studies Copyright © 2020 by Meizhong Wang is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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