Year 9 Computer Science Digital Portfolio Name: Class: Teacher:

Contents Lesson 1 – Internet Hardware Lesson 2 – How Devices Connect to the Internet Lesson 3 – LANs and WANs Lesson 4 – Network Topologies Lesson 5 – Hexadecimal Lesson 6 – Internet Protocols

L1 Internet Hardware Definitions Internet Hardware Task 1 Enter date… What is a network? What is ‘hardware’? Describe how the Internet works in your own words. Identify the pieces of Internet hardware below. What is meant by ‘bandwidth’? Type answer here… Hardware What is it? Type answer here… Type answer here… Type answer here… LO1: To identify computer hardware and Internet hardware; LO2: To explain what is meant by each piece of hardware; LO3: To identify features of and explain the function of hardware.

L1 Internet Hardware Internet Hardware Task 2 Enter date… Place the hardware in the correct order and connect them to show how devices access the Internet. Remember to label each part of the diagram! LO1: To identify computer hardware and Internet hardware; LO2: To explain what is meant by each piece of hardware; LO3: To identify features of and explain the function of hardware.

L1 Internet Hardware Internet Hardware Task 3 Enter date… Data can be transmitted via several methods. Complete the table below to show their transmission speeds and method of transmission. Transmission Speeds: Very high, High, Medium or Slow Data sent as: Electricity, Radio waves or Light Method Transmission Speed Data sent as… Fibre Optic Cable   Coaxial cable WiFi CAT5 LO1: To identify computer hardware and Internet hardware; LO2: To explain what is meant by each piece of hardware; LO3: To identify features of and explain the function of hardware.

L1 Internet Hardware Internet Hardware Task 4 Enter date… The main Google server is in the United States. When you use Google to find the answer to a question, what transmission medium is used? (Select from satellite, undersea fibre optic or copper telephone cables). Explain the difference between uploading and downloading data from the Internet. Why is uploading usually slower than downloading? What is meant by buffering? Why is buffering used when you watch a film online? Explain why you may sometimes get a ‘Loading…’ message when you are waiting for something online. Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… LO1: To identify computer hardware and Internet hardware; LO2: To explain what is meant by each piece of hardware; LO3: To identify features of and explain the function of hardware.

L2 How Devices Connect to the Internet Enter date… L2 How Devices Connect to the Internet Domain Names IP Addresses What sort of organisation might the website www.survey.gov.uk belong to, and where would it be located? Which of the following top-level domain names might a charity use and why? (.com, .org, .gov or .sch). What is the advantage for a company of a .co.uk or a .com address? Why do some companies have both? Use a website such as http://whatismyipaddress.com/ip-lookup to find out the missing IP addresses and domain names, and where the domain name server is located. Type answer here… Domain name or Host name IP address Location www.google.co.uk 173.194.34.95 United States (Your school website)   178.236.6.251 bbc.co.uk The computer you are working on Type answer here… Type answer here… LO1: To investigate how devices connect to the Internet; LO2: To explain how the Internet actually works.

L2 How Devices Connect to the Internet Enter date… L2 How Devices Connect to the Internet The Internet Packets What is the World Wide Web? Give an example of when you might use the Internet without using the World Wide Web. Name two things you can work out about the organisation that this website belongs to: www.highland.suffolk.sch.uk When data is transmitted over the Internet, it is broken up into small chunks known as packets. Label the following statements True or False. Type answer here…   True/False The destination and sender’s addresses are added to each packet Each packet is numbered and sent to its destination Each packet travels by the same route to its destination The shortest possible route is chosen for each packet Packets have to be reassembled in the correct order at the destination Type answer here… Type answer here… LO1: To investigate how devices connect to the Internet; LO2: To explain how the Internet actually works.

L3 LANs and WANs LANs and WANs Enter date… What is a LAN? What is a WAN? How are they different? Example of a LAN: Example of a WAN: Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… LO1: To identify features of LANs and WANS; LO2: To explain where LANs and WANs are used; LO3: To identify differences between LANs and WANs.

L3 LANs and WANs LANs and WANs Task Enter date… Research the differences between wired and wireless connections. What are the pros/cons for each? Type answer here… LO1: To identify features of LANs and WANS; LO2: To explain where LANs and WANs are used; LO3: To identify differences between LANs and WANs.

L3 LANs and WANs Designing a Network Task Enter date… You have been given the job of Network Engineer for your school and you have been asked to design a new network layout. On a new slide, plan the layout for your proposed network. You may want to include: The computers in CS1 and CS2 How the rooms will be connected The servers Follow-ME printers Any Wi-Fi or Internet access You can use these icons to help you. LO1: To identify features of LANs and WANS; LO2: To explain where LANs and WANs are used; LO3: To identify differences between LANs and WANs.

L3 LANs and WANs Designing a Network Task Enter date…   LO1: To identify features of LANs and WANS; LO2: To explain where LANs and WANs are used; LO3: To identify differences between LANs and WANs.

L4 Network Topologies Star Topology Mesh Topology Enter date… Connect the PCs to create a star topology. Connect the PCs to create a mesh topology. LO1: To identify different network topologies including star, ring, bus, mesh and hybrid; LO2: To create network topologies using hardware.

L4 Network Topologies Bus Topology Ring Topology Enter date… Connect the PCs to create a bus topology. Connect the PCs to create a ring topology. LO1: To identify different network topologies including star, ring, bus, mesh and hybrid; LO2: To create network topologies using hardware.

L4 Network Topologies Hybrid Topology Topologies Enter date… Connect the PCs to create a hybrid topology. What is meant by the topology of a network? Describe two advantages of linking a school network in a LAN. Type answer here… Type answer here… LO1: To identify different network topologies including star, ring, bus, mesh and hybrid; LO2: To create network topologies using hardware.

L5 Hexadecimal Binary Task Denary Task Enter date… Convert the following binary numbers into denary: 01101010 01010101 10101111 01011111 00110011 Convert the following numbers into binary: 240 85 90 129 18 Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… LO1: To recap binary conversion; LO2: To convert binary to hexadecimal; LO3: To explain how hexadecimal is used in networks.

L5 Hexadecimal Hexadecimal Task Enter date… Convert the following binary numbers into hex: 01101010 01010101 10101111 01011111 00110011 Convert the following numbers into hex: 240 85 90 129 18 Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… Type answer here… LO1: To recap binary conversion; LO2: To convert binary to hexadecimal; LO3: To explain how hexadecimal is used in networks.

L6 Internet Protocols Definitions Task Enter date… What is a protocol? What does TCP/IP stand for? Why are protocols needed in a network? Create an A4 ‘Networks’ revision poster. You should include information from all of the lessons this half term. Remember to include definitions and examples. Presentation is important – the best examples will be printed and displayed! Type answer here… Type answer here… Type answer here… LO1: To identify features of LANs and WANS; LO2: To explain where LANs and WANs are used; LO3: To identify differences between LANs and WANs.

Assessment Assessment Feedback Enter date… Lesson LOs Achieved? L1 Internet Hardware LO1: To identify computer hardware and Internet hardware. LO2: To explain what is meant by each piece of hardware. LO3: To identify features of and explain the function of hardware. L2 How Devices Connect to the Internet LO1: To investigate how devices connect to the Internet. LO2: To explain how the Internet actually works. L3 LANs and WANs LO1: To identify features of LANs and WANs. LO2: To explain where LANs and WANs are used. LO3: To identify differences between LANs and WANs. L4 Network Topologies LO1: To identify different network topologies including star, ring, bus, mesh and hybrid. LO2: To create network topologies using hardware. L5 Hexadecimal LO1: To recap binary conversion. LO2: To convert binary to hexadecimal. LO3: To explain how hexadecimal is used in networks. L6 Internet Protocols LO1: To identify what a protocol is. LO2: To briefly explain why protocols are needed in a network. Teacher Comment Student Response