title: What is Pre-Defined component?
body: <p>Hope you can help. 
  I'm sort of new to computer programming, but I have experience with programming [just self taught] and I'm working on Unit for QA Apprenticeship and there few questions that are not making sense [City &amp; Guilds fault] Anyhow..</p>
  
  <p>Unit - Designing and Developing event drive computer programs using VB</p>
  
  <ol>
  <li>select &amp; use pre-defined components specialising as required</li>
  <li>identify the set of events that invoke behaviour of components and other programmer elements. </li>
  <li>specify the behaviour of components and other program elements to allow efficient implementation, selecting appropriate data types, data and file structures and algorithms.</li>
  </ol>
  
  <p>These probably makes sense, but as English is not my primary language, I think I'm missing the meaning.</p>
  
  <p>Help would be appreciated. </p>
  
  <p>Thanks </p>