Tossing the Phone

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Tossing the Phone

  1. 1. Great alternative for phone Kreyt Kõiv Pärnu College
  2. 3. Main areas <ul><li>Skype generally (what is it, who made, when, why) </li></ul><ul><li>Advantages of Skype </li></ul><ul><li>Disadvantages of Skype </li></ul>
  3. 5. General information <ul><li>Simple software </li></ul><ul><li>Made in 2003 </li></ul><ul><li>Designed by estonians who created previously file-sharing network “KaZaA” </li></ul><ul><li>Free download from the internet </li></ul><ul><li>Free conversations with other Skype users (=Skypers) </li></ul>
  4. 6. General information <ul><li>Video-conference facility </li></ul><ul><li>Text-message conversation </li></ul><ul><li>Terrific deal – person you are contacting may sat at a computer </li></ul><ul><li>Possiblity to buy Skype credit and call someone´s mobile number </li></ul><ul><li>Need to have webcam (+headphones with microphone) for video call </li></ul>
  5. 7. Advantages of Skype <ul><li>Communication between 2 Skypers for free </li></ul><ul><li>Easy to use </li></ul><ul><li>Video-conferencing facility </li></ul><ul><li>Improvements in video quality </li></ul><ul><li>Able for full screen video </li></ul><ul><li>Picture-in-picture (in the latest versions) </li></ul><ul><li>Software runs also on mobile phones </li></ul>
  6. 8. Skype users 4,000,000 20.10.2005 3,000,000 18.05.2005 2,000,000 14.02.2005 1,000,000 20.10.2004 0 29.08.2003 Users Date
  7. 9. 14,000,000 20.10.2008 13,000,000 15.09.2008 12,000,000 18.02.2008 11,000,000 7.01.2008 10,000,000 15.10.2007 9,000,000 29.01.2007 8,000,000 8.11.2006 7,000,000 29.08.2006 6,000,000 27.03.2006 Users Date
  8. 10. Disadvantages of Skype <ul><li>Lack of security </li></ul><ul><li>No need to prove identity (=unknown identification) </li></ul><ul><li>No central server for... </li></ul><ul><li>...“traffic” flow </li></ul><ul><li>...logging the calls </li></ul><ul><li>...screening viruses, Trojan horses and spyware </li></ul><ul><li>Perfect vehicle for delivering malware (=bad software)  </li></ul>
  9. 11. Main points again <ul><li>Skype generally </li></ul><ul><li>Advantages of Skype </li></ul><ul><li>Disadvantages of Skype </li></ul>
  10. 12. Thank you for your attention! 

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