Unit 1 – The Online World

Summary:
Unit 1 – The Online World is the first of the two important exam units. As with all the units, unit 1 has multiple learning aims, which each covers numerous different topics. Unit 1 covers the:

  1. Investigation of Online Services, Documents and Communication;
  2. Investigation of the internet’s components and how digital devices exchange and store information;
  3. Investigation of issues with operating online.

digital-world-graphic

Learning Aim 1:
The first learning aim of Unit 1 covers the investigation of online services, online documents and online communication. These online services, which you learn about, include email, online data storage, collaborative software, search engines and blogging. This helps you to understand what online services are and how they are used. You also learn about online advertising and the different features they use, such as: affiliate model of pay-per-click redirection.

Learning aim 1 also covers online documents, which is when you have to understand what compression and expansion of files is, along with advantages of using online software and the levels of access/control of documents.

The final part of learning aim 1 is when you cover online communication and understanding the implications involved. You also learn about advantages and disadvantages of VoIP (Voice over Internet Protocol), along with the benefits and drawbacks of cloud computing. The last part is when you need to understand what effects ubiquitous computing has on everyday life.

As you can see above, I have included these assets as an example of the work which I have completed for this learning aim. My method of selecting the specific example is by directly linking to what was explained in each of the specific learning aims. In this case the first learning aim of Unit 1 mostly relates to the different Online Services.

Learning Aim 2:
The second learning aim of Unit 1 covers the investigation of components of the internet and how digital devices exchange and store information. You learn to understand what is meant by the term internet, along with how it works and how it is structured.

In a similar way, you learn to understand the concepts, functions and impact of the World Wide Web, along with what Hyper Text Mark-up Language (HTML) is and some basic tags; such as a line-break, paragraphing and styling. You also learn what a Uniform Resource Locator (URL) is and what the structure of one is and different protocols. Another thing you learn about is search engines and how they are implemented.

u1-html-table-graphic
Table containing some basic HTML tags with descriptions and examples.

In the next part, you learn about what is meant by client-side and server-side processing and the difference between them both. Similarly you learn about the purpose of email and the implications & concepts behind it.

You then learn about the exchanging of data. Basically, just understanding what packet switching is and how it works, the different transmission modes and wired/wireless transmission methods.

In the final part of learning aim 2, you learn about data storage and databases. Specifically, you need to understand the concepts, processes and implications of data storage. Such as: the structure of a database, in terms of tables, records, fields, data types and relationships.

 

As you can see above, I have included these assets as an example of the work which I have completed for this learning aim. My method of selecting the specific example is by directly linking to what was explained in each of the specific learning aims. In this case with the second learning aim of Unit 1 the most interesting worksheet completed was that of Client/Server-side processing.

Learning Aim 3:
The third and final learning aim of Unit 1 covers the investigation of issues when operating online.  The primarily relates to threats to data online, and understanding the concepts, process and implications.

As you can see above, I have included this video asset because I felt it explained the usage and purpose of using firewalls.

As all this new technology has created concerns regarding security and privacy, you have to consider how users should behave online to safeguard themselves, while respecting other users. This includes the security measures taken to protect data that is transmitted and stored digitally including encryption, firewalls and anti-virus software and any security issues and consequences associated with the widespread use of email, including spread of viruses, phishing and identity theft.

As you can see above, I have included these assets as an example of the work which I have completed for this learning aim. My method of selecting the specific example is by directly linking to what was explained in each of the specific learning aims. In this case the third learning aim of Unit 1 mostly relates to the different issues with operating online, such as threats to data and legal issues.

Overall, this unit is essential if you are considering a career in IT. Online systems and technology have become part of everyday work, so being able to understand and work with this technology is relevant in many roles in the industry.