Communications & Networks National 4 & 5 Computing Science.

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Presentation transcript:

Communications & Networks National 4 & 5 Computing Science

Learning Intentions What we will learn: More about Client Server networks File servers Print servers What is the Internet? What is a NIC?

Learning Objectives To understand the different roles of a server in a client server network To understand what the Internet is To know what a NIC is and why it is required

Client Server Networks What is a client on this type of network? What are the roles of the server? File server Print server

File Server Provides central disk storage: Programs Data Greater amount of RAM and backing storage than desktop computer Fast processor / Multiple processors Components should be of a higher quality Server running 24/7 Server software Organise storage Handle security

Print Server Allows all clients to use a printer controlled by it Provide a queuing system Designed to work quickly Usually monochrome lasers Colour printers are becoming more common Printer will have its own processor It will also have sufficient amount of RAM

The Internet It is a WAN Wide Area Network Can be thought of as many different, smaller networks connected together Known as a ‘network of networks’ Each connected network may be: Of any size Use any hardware Be situated anywhere in the world

The Internet – ‘Network of Networks’ These networks can include: Governments Universities Multi-national companies Small company networks Individuals using Internet Service Provides (ISPs)

Internet Service Providers (ISPs) What is an Internet Service Provider Company that provides a host computer to which users can connect to Host computer manages the communications Stores data – , web pages, files The host is connected to the Internet Subscribers can then connect with others connected to the Internet

Network Interface Card - NIC Used to connect a computer to a network Three different types: Wired Wireless

Success Criteria I know… The different roles of a server in a client server network About a file server and what it is used for About a print server and what it is used for What the Internet is and that it is a ‘network of networks’ What a NIC is and why it is required