internet type presentatio n of on

analog  Economical but slow  Also called dial-up access  Typical Dial-up connection speeds range from 2400 bps to 56 Kbps.

 Integrated services digital network  transfer videos, music, data's, graphic and other source materials.  Use normal telephone wire  Typical ISDN speeds range from 64 Kbps to 128 Kbps. ISDN

B-ISDN  Fiber optical  SONET

DSL  Also called ALWAYS ON CONNECTION DSL and SDSL

Set up for DSL

ADSL  asynchronous DSL  support data rate from 1.5 to 9 Mbps while receiving and 16 to 640 Kbps on sanding datas.  Special ADSL modem required

SDSL  s synchronous DSL  supports data upto 3 Mbps  commonly used in Europe

VDSL  Very high DSL.  covers a short distance.  All DSL technology are usually called xDSL.  xDSL connection speed range from 128 kbps to 8 Mbps.

CABLE  Cable modem. oaxial cable.  Speed range from 112 Kbps to 20 MBPS

WIRELESS  Also called Broadband connection.  Relatively new  Always on  Expensive

How Wireless works

T-1 LINE  Popular least line.  used for business purposes.  fractional T-1 access  speed around Mbps

BONDED T-1  Two or more T-1 line  Must run to same ISP  Speed around 3 Mbp s

T-3 LINE  Data rate of 43 to 45 Mbps  Also a popular leased line  672 individual channels  used by ISP

SATELLITE  Geostationary  Placed at a static point.  IOS is Bit slower

How satellite works

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