Comp1900 – Lecture Week 2

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Comp1900 – Lecture Week 2

  1. 1. Comp1900 – Lecture week 2 Kathy Egea
  2. 2. Overview <ul><li>Intermediated experience </li></ul><ul><ul><li>Command line vs GUI cp Disney’s approach </li></ul></ul><ul><ul><li>OS, software are intermediaries </li></ul></ul><ul><li>Structure </li></ul><ul><ul><li>GUI interface access to OS , hardware, software, networks, internet </li></ul></ul><ul><ul><li>File system access to hard drive (HD) </li></ul></ul><ul><li>Information </li></ul><ul><ul><li>Software to OS to computer/printer/? and back </li></ul></ul><ul><ul><li>Backing up </li></ul></ul><ul><ul><li>Communication across platforms and version control </li></ul></ul>
  3. 3. Introduction to Computers <ul><li>History of computers </li></ul><ul><li>Computer functions </li></ul><ul><li>Bits and bytes </li></ul><ul><li>Software – application programs and system programs </li></ul><ul><li>Storage of data – hardware </li></ul><ul><li>Input of data – hardware </li></ul>
  4. 4. Operating systems <ul><li>Mac </li></ul><ul><li>Windows </li></ul><ul><li>Linux </li></ul><ul><li>Red Hat </li></ul><ul><li>UNIX </li></ul><ul><li>Sugar OS (XO computer for kids) </li></ul>
  5. 5. What an OS does? Figure 5.7, Evans, Martin and Poastsy (2009, p215)
  6. 6. Other information <ul><li>Processor management </li></ul><ul><li>Booting </li></ul><ul><li>File organisation </li></ul><ul><li>Utility programs </li></ul><ul><ul><li>Defrag utility </li></ul></ul><ul><ul><li>Task manager utility </li></ul></ul><ul><ul><li>Backup utility </li></ul></ul>
  7. 7. Threshold Concept <ul><li>Operating system, and software, are intermediaries </li></ul><ul><li>&quot;Disney does mediated experiences better than anyone. If they understood what OSes are, and why people use them, they could crush Microsoft in a year or two.&quot; from &quot;In the beginning&quot;. </li></ul><ul><li>Reading: Neil Stephenson : http://www.locusmag.com/2004/Issues/08Stephenson.html </li></ul>
  8. 8. Intermediated experience : result of hardware + software (OS + applications) <ul><ul><li>Command line vs GUI interaction cp Disney’s approach </li></ul></ul><ul><ul><li>Computer perspective: Direct control (user) vs system control (GUI) cp Disney’s immersive process </li></ul></ul><ul><ul><li>User’s perspective ~ user knowledge/preconceptions/expectation of operation; users want meaningful interaction </li></ul></ul>
  9. 9. Structure <ul><ul><ul><li>Desktop/GUI gives access to file system, operating system, network, internet/www </li></ul></ul></ul><ul><ul><ul><li>different layers: network (OSI), hardware, operating system, and software  </li></ul></ul></ul><ul><ul><ul><li>file system gives access to hard-drives </li></ul></ul></ul>
  10. 10. Information <ul><ul><ul><li>software to OS to computer/printer/? and back </li></ul></ul></ul><ul><ul><ul><li>file names – individual perspective and changing with needs and understanding </li></ul></ul></ul><ul><ul><ul><li>backing up </li></ul></ul></ul><ul><ul><ul><li>communication across platforms and version control </li></ul></ul></ul>

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