Grade 12 hardware and software – lo1

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Grade 12 hardware and software – lo1

  1. 1. Hardware and Software – LO1 Grade 12
  2. 2. Improving the Performance of your machine… Increasing demand equals … Socially Academically Spiritually Professionally Scientifically Enter Gordon Moore…
  3. 3. Speeding up the performance of a PC… <ul><li>The CPU </li></ul>2. Cache Memory ALU Does all the computing CU Controls and checks Registers Workspace RAM ROM
  4. 4. 3. Improve Bus Design
  5. 5. Improving Storage… Not so long ago … Professionally speaking – businesses need increasing amounts of data. Data mining = businesses can collect many different types of data for analyzing later. Data mining: The collection and analysis of large collections of data. Professionally speaking – businesses need increasing amounts of data.
  6. 6. Getting more storage entails: <ul><li>reducing the size of the read/ write head. </li></ul><ul><li>changing the recording process. </li></ul><ul><li>inventing new technologies for storage data! </li></ul>Faster and more Reliable drives: 1. Improve Latency i.e..: reduce the time taken for the read/ write head to reach data stored on the disc 2. Data transfer rate SATA vs IDE 1. Improve Shock Resistance 2. Using RAID
  7. 7. So what is RAID? <ul><ul><ul><ul><ul><li>Redundant Array of Inexpensive/ Independant Discs </li></ul></ul></ul></ul></ul>A group of discs grouped together by a special controller and treated as one disc. What’s its purpose? <ul><li>To improve data reliability by duplication across discs. </li></ul><ul><li>To increase hard drive space. </li></ul>

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