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THE DUTIES OF THE ISP’S

THE DUTIES OF THE ISP’S. THEY CONNECT US TO THE INTERNET. THEY SEE TO IT THAT THE BROWSER WORKS THEY KEEP OUR MESSAGES WHILE WE ARE OFFLINE. THE NAMES OF THE ISP’S. YAHOO WEBMAIL GMAIL HOTMAIL IAFRICA WAM TELKOMSA.NET. NAMES OF THE ISP’S. MWEB POLKA AOL = AMERICAN ONLINE

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THE DUTIES OF THE ISP’S

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  1. THE DUTIES OF THE ISP’S • THEY CONNECT US TO THE INTERNET. • THEY SEE TO IT THAT THE BROWSER WORKS • THEY KEEP OUR MESSAGES WHILE WE ARE OFFLINE

  2. THE NAMES OF THE ISP’S • YAHOO • WEBMAIL • GMAIL • HOTMAIL • IAFRICA • WAM • TELKOMSA.NET

  3. NAMES OF THE ISP’S • MWEB • POLKA • AOL = AMERICAN ONLINE • WOL= WORLD ONLINE • ABSA.MAIL.CO.ZA

  4. THE MODEM • IT IS A TOOL THAT IS ALWAYS FOUND BETWEEN THE COMPUTER AND THE TELEPHONE LINE. • IT’S DUTY IS TO CONVERT TEXT INTO SOUND AND SOUND INTO TEXT. • THE TEXT IS KNOWN AS DIGITAL SIGNALS • WHILE THE SOUND IS KNOWN AS ANALOGUE TONES

  5. THERE ARE TWO TYPES OF MODEMS • INTERNAL MODEM WHICH IS FOUND INSIDE YOUR COMPUTER. • EXTERNAL MODEM WHICH IS FOUND OUTSIDE YOUR COMPUTER.

  6. INTERNAL MODEM IS VERY CHEAP HOWEVER IT IS DIFFICULT TO INSTAL IT IS EASILY DESTROYED BY LIGHTENING EXTERNAL MODEM IT IS VERY EXPENSIVE IT IS EASY TO INSTAL IT IS NOT EASILY STRUCK BY LIGHTENING THE DIFFERENCES BETWEEN THE TWO MODEMS

  7. THE MODEM STORY THIS IS HOW THE THREE HARD WARE INTER-LINK WITH EACH ON THE INTERNET

  8. THE MODEM STORY • MODEM TELEPHONE CONVERTER ANALOGUE TONES DIGITAL SIGNALS CONVERTER ANALOGUE TONES DIGITAL SIGNALS

  9. MODULATION THE PROCESS OF TURNING DIGITAL SIGNALS TO ANALOGUE TONES BY THE MODEM

  10. DEMODULATION THE PROCESS OF TURNING ANALOGUE TONES TO DIGITAL SIGNALS BY THE MODEM

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