computer 6

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our topic for wed. July 21, 2010

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computer 6

  1. 1. What is computer?<br />
  2. 2. computer<br />Is an electronic device, operating under the control of instructions stored in it’s own memory unit that can accept data, process data mathematically or logically and produced meaningful results called information.<br />
  3. 3. Describe the following pictures?<br />
  4. 4. What is Data?<br />Data – are raw facts or figures. They are made up letters, numbers and other symbols or special characters.<br />can be list of phone numbers<br />list of students names<br />a set of keywords jotted during a speech<br />
  5. 5. Information<br />refers to data that have been processed into a form that is meaningful and useful.<br />
  6. 6. Data Processing <br />– is the manipulation and transformation of data into meaningful results.<br />
  7. 7. Examples of the operations used in data processing include the following:<br />Gathering Data<br />Interpretation and classification of data<br />Recording of Data<br />Performing basic mathematical operations<br />Summarizing the results<br />
  8. 8. Data processing is a routinely activity of all people. It’s what we do to gain and develop new knowledge. It is actually a cycle. As you read you will understand why.<br />
  9. 9. television<br /> books<br /> Newspaper<br /> radio<br />
  10. 10.  TYPES OF DATA PROCESSING<br />Manual Data Processing<br />Manual – mechanical data processing<br />Electronic data processing<br />
  11. 11. Manual Data Processing <br />– is characterized by the absence of any machine in processing data.<br />The person involved does all the activities – from accumulation of data, their manipulation and the creation of results<br />
  12. 12. Manual <br />mechanical data processing- devices are used <br />In processing but human intervention is needed to produce results.<br />
  13. 13. Electronic data processing <br />– refers to the use of computer in processing data.<br />

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