Fundamentals of Network .General introduction .Local area network .Internet .Webpage design
1 Fundamentals of Network •General introduction •Local area network •Internet •Webpage design
General introduction What is the computer network A computer network,often simply referred to as a network,is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information Network techniques: 打印机服务器 通信设备 点 笔记本 通信线路 Communication 数据库 服务器 通信系统 Computer science 大型机 微型机 微型机 工作站
2 General introduction What is the computer network ? A computer network, often simply referred to as a network, is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information Network techniques: Communication Computer science 服务器 微型机 微型机 工作站 笔记本 大型机 通信系统 通信设备 通信线路 服务器 打印机 数据库
Network structure 0………小0 Resource subnetwork Communication : subnetwork :
3 Network structure Communication subnetwork Resource subnetwork
What are the functions of the network? e.g.email,e-businnes,etc. > Data communication > Resource- e.g.share the hardware,software and sharing data resource > Distributed Divide the complicated problem into processing sub problems to process,e.g. train/airplane tickets sell
4 ➢ Data communication ➢ Resourcesharing ➢ Distributed processing e.g. email, e-businnes, etc. e.g. share the hardware, software and data resource Divide the complicated problem into sub problems to process, e.g. train/airplane tickets sell What are the functions of the network?
Resource sharing 打印机 服务器 Hardware Data 数据库 服务器 Software 5
5 Resource sharing Hardware Data Software