Communication & Internet Technology

​This section of the course is broken down into three sections.  Below you can see the three sections as outlined by the CIE syllabus along with the requirements for each.  You can use these requirements as a checklist and use the buttons below to learn about each topic.
Home / Communication and the Internet

1.2.1 Data Transmission


​Understand what is meant by 'Data Transmission'

Distinguish between Serial and Parallel Transmission

Distinguish between Simplex, Duplex and Half Duplex

Show reason for choosing Serial or Parallel transmission
Understand the need to check for errors

Understand the methods of checing for errors - Parity, check sums, ARQ etc

1.2.2 Security Aspects


​Understand the security aspects of using the internet and how to minimize the risks

Understand the risks from Malware and Hackers

Explain how Anti-virus and other protection software helps protect against security risks​

1.2.3 The Internet


​Understand the role of the browser

Understand the role of an ISP

Know what is meant by hyper text transfer protocol and HTML

Distinguish between HTML structure and presentation

Understand the concepts of MAC addresses, Internet Protocol (IP), URL and Cookies