1.1 introduction toict


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Nota ICTS ICT Form 4

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1.1 introduction toict

  2. 2. What is ICT?<br />
  3. 3.
  4. 4. INFORMATION & COMMUNICATION TECHNOLOGY<br />ICT is a technology required for information processing, in particular, the use of electronic computers, communication devices and software applications to convert, store, process, transmit and retrieve information from anywhere, anytime.<br />
  5. 5. INFORMATION & COMMUNICATION TECHNOLOGY<br />Information – Input data that has been processed by the computer; data that is organized, meaningful and useful.<br />
  6. 6. INFORMATION & COMMUNICATION TECHNOLOGY<br />Communication – process of sharing data, programs and information between two or more computers.<br />
  7. 7. Evolution of computers<br />1st generation (1951-57) : vacuum tube<br />2nd generation (1958-63) : transistor<br />3rd generation (1964-69) : integrated circuit <br />4th generation (1970-90) : microprocessor<br />5th generation (1991-beyond) : connectivity<br />
  8. 8. 1st generation : vacuum tube<br />Computers were built with vacuum tubes – <br />electronic tubes that were made of glass<br />the size of a bulb<br />Were used as the internal computer component<br />
  9. 9. 1st generation : vacuum tube (cont)<br />The first electronic digital computer – UNIVAC (Universal Automatic Computer)<br />Introduced by Dr. John W. Mauchly and J. Presper based on ENIAC (Electronic Numerical Integrator and Computer)<br />
  10. 10. 1st generation : vacuum tube (cont)<br />Disadvantages:<br />A great deal of heat as thousands of tubes were required<br />All the tubes working simultaneously, causing the tubes to burnout<br />Programming used was machine language – difficult & time consuming.<br />
  11. 11. 2nd generation : transistor<br />First computers were built with transistors<br />Small devices that transfer electronic signals across a resistor<br />This computer use less power & less heat than vacuum tubes<br />Faster, smaller and more reliable<br />
  12. 12. 3rd generation : integrated circuit<br />1964 : manufacturers began replacing transistors with integrated circuits.<br />Complete electronic circuit on a small chip made of a silicon.<br />These computers are <br />more reliable, <br />compact and <br />less cost to the manufacture.<br />
  13. 13. 3rd generation : integrated circuit (cont)<br />IBM introduced its System/360 line of compatible system computer, which can be used by the same programs and peripherals.<br />
  14. 14. 4th generation : microprocessor<br />Many key advances were made – microprocessor<br />A specialized chip developed for computer memory and logic<br />Use a single chip to create a smaller personal computer<br />Revolutionized the computer industry<br />
  15. 15. 5th generation : connectivity<br />Referred as the connected generation because of the connectivity of computers.<br />
  16. 16. 5th generation : connectivity<br />Rapidly expanding Internet, World Wide Web and Intranet <br />Created an information superhighway that has enabled both computer professionals and home computer users to communicate with others across the globe.<br />
  17. 17. ICT usage in everyday life<br />Education<br />Banking<br />Industry<br />Commerce<br />
  18. 18. Exercise<br />Find 1 example of ICT usage in<br />Education<br />Banking<br />Industry<br />
  19. 19. ICT Usage: Education<br />E-learning<br />Resources / references from the internet<br />
  20. 20. ICT Usage: Banking<br />Pay bills using online banking<br />Make a transactions anywhere, anytime<br />
  21. 21. ICT Usage: Industry<br />Replaced human energy with machine<br />
  22. 22. ICT Usage: Commerce<br />E-commerce, e-shopping<br />Selling & buying through internet<br />
  23. 23. Computerized vs. non computerized system<br />
  24. 24. Computerized vs. non computerized system<br />
  25. 25. Other sector<br />Architecture<br />Computer graphics to experiment with possible interiors<br />Arts<br />Modern artist use computer to express their creativity<br />Career<br />Job opportunities related to the ICT such as system analyst, programmer or technical writer.<br />Government<br />To forecast weather, process immigrant, manage parks and etc.<br />
  26. 26. Other sector<br />Healthcare<br />To promote telemedicine and information sharing. Doctors and medical practitioners apply modern treatment such as laser treatment.<br />Home<br />For record keeping, writing letters, preparing budget and communicating with others.<br />Lawenforcement<br />Maintaining national fingerprint files, modeling DNA.<br />Transportation<br />Used in Rapid Transit System and track railway system.<br />Travel<br /> Room reservation, helps tourists to plan their holidays.<br />
  27. 27. Impact of ICT on society<br />Positive:<br />Faster communication speed<br />via e-mail<br />Lower communication cost<br />People do not have to pay for any basic services provided by the internet.<br />Reliable mode of communication<br />Information can be accessed and retrieved from anywhere and anytime.<br />Effective sharing of information<br />Paperless environment<br />Borderless communication<br />
  28. 28. Impact of ICT on society<br />Negative:<br />Social problems<br />People become individualistic<br />Hacking, pornography, online gambling<br />Health problems<br />Exposed to bad posture, eyestrain, physical and mental stress.<br />Ergonomic environment can be introduced<br />
  29. 29. The end of chapter Introduction ICT <br />