Chapter 6 is about data communications-computer network. Network is a collection of computers and communicate with one another over transmission line. For example, there are LAN (Local Area Network ), WAN(Wide Area Network ), and internet. And, it talks bout modems. Lastly, it talks about a computer security system- Firewall and VPN(Virtual private network).
Because of this chapter, I was able to understand about computer networking system and modems. There are many kinds of modems. Also, I could realize why my computer is protected by other programs, how I can protect my computer.
No comments:
Post a Comment