Computer Science - AS Level

Communication and Internet Technologies

3.1 Networks

• Networks Presentation (Bold Links below indicate links provided by CIE which cover topics not covered or at least not fully, in my presentation or Quiz)
  • Explain the client-server model of networked computers (wikibooks)
  • Give examples of applications which use the client-server model (wikibooks)
  • Describe what is meant by the World Wide Web (WWW) and the Internet (wikibooks)
  • Explain how communication systems are used to support the Internet: The Public Service Telephone Network (PSTN), dedicated lines, cell phone network (wikipedia)
  • Explain the benefits and drawbacks of using copper cable, fibre-optic cabling, radio waves, microwaves, satellites (what-when-how.com)
  • Show understanding of bit streaming (wikipedia) (both real-time and on-demand) (info.viddler.com)
  • Show understanding of the importance of bit rates/broadband speed on bit streaming (wikipedia)
  • Client-Server & Peer To Peer (youtube)
  • Peer To Peer (teach-ict.com)
  • Client Server (teach-ict.com)
  • Comprehensive Background Information (wikipedia)
  • Internet and WWW (wikibooks)
  • Notes from iteach.pk
  • Comprehensive Overview (wikipedia)
  • Internet and WWW (youtube) - ignore intranet
  • Bandwith (teach-ict.com)
    • Networks Quiz

3.2 IP addressing (Bold links are most important)

• Explain the format of an IP address and how an IP address is associated with a device on a network (wikibooks)
• Explain the difference between a public IP address and a private IP address (gohacking.com) and the implication for security(smallbusiness.chron.com)
• Explain how a Uniform Resource Locator (URL) is used to locate a resource on the World Wide Web (WWW) (computerhope.com) and the role of the Domain Name Service (wikibooks)
• Notes on URL (wikibooks) - ignore URI
• IP Address Explanation (youtube)
• What is IP addressing? (teach-ict.com)
• IP Addressing (teach-ict.com)
• IP and DNS (teach-ict.com)
• What is the difference between public and private IP address? (iplocation.net)
• Common uses (wikipedia)
• Notes from iteach.pk
  • IP addressing Quiz

3.3 Client- and Server-Side Scripting (Bold links are most important)

• Describe the sequence of events executed by the client computer and web server when a web page consisting only of HTML tags is requested and displayed by a browser
  • Client-side (codingatschool.weebly.com)
    • Recognise and identify the purpose of some simple JavaScript code (w3schools)
    • Describe the sequence of events executed by the client computer and web server when a web page with embedded client-side code is requested and displayed by a browser (codingatschool.weebly.com)
    • Show understanding of the typical use of client-side code in the design of an application (codingatschool.weebly.com)
  • Server-side (codingatschool.weebly.com)
    • Recognise and identify the purpose of some simple PHP code (php.net)
    • Describe the sequence of events executed by the client computer and web server when a web page with embedded server-side code is requested and displayed by a browser (codingatschool.weebly.com)
    • Show understanding that an appropriately designed web application for accessing database data makes use of server-side scripting (codingatschool.weebly.com)
• Tutorial on how to set up a simple web page containing PHP code1 (php.net)
• Tutorial on how to set up a simple web page containing PHP code2 (w3schools)
• Tutorial on how to set up a simple web page containing PHP code3 (htmlgoodies)
• Introduction to javascript (w3schools)
• Scripting & Javascript (advanced-ict.info)
• Program Flow (advanced-ict.info)
• JavaScript (codeacademy.com)
• PHP (codeacademy.com)
• Client-side and Server-side scripting (yourwebskills.com)
• Scripting Features (sqa.org.uk)
• Notes from iteach.pk
  • Client- and Server Side Scripting Quiz