Thursday 25 January 2018

Types of the Internet Connection



Assalamualaikum

Hello guys!!
Today is mostly cloudy day! so like usual, I have continue do my assignment.
Today I want share about types of internet connection.

There are two types of internet connection.

DIAL-UP CONNECTION
BROADBAND/DIRECT CONNECTION

DIAL-UP CONNECTION

DIAL UP CONNECTION in divided into two types;

  • Conventional Dial Up
  • ISDN ( Integrated Service Digital Network )



CONVENTIONAL DIAL-UP is (to connect to the Internet, your computer dials its modem and connects to a modem attached to a computer belonging to your ISP.)

  •                     PC has to dial via a phone line to connect
  •                     Characteristics of Conventional dial-up:
  •                       * Slower, but cheaper
  •                       * Ties up phone lines
  •                       * Relatively secure from hackers
  • *                       Example :-  TMNet
There are disadvantages and advantages of conventional dial up

                                                     
Advantages
Disadvantages

          Security : (since your are not continually connected to the Internet, it is much less likely the hackers will gain access to your computer via Internet)
          Include inexpensive hardware
          Ease of setup and use
          Availability: provides the user with the convenience of using his account.

          Slow connection speed (max of 56Kbps)
          Inconvenience (having to instruct your PC to dial up your ISP every time you want to check your email or view a website )
          Telephone line will be tied up while accessing the Internet


ISDN ( Integrated Service Digital Network) 

  •        also transfer data over ordinary telephone lines
  •        Typically uses two phone lines to transfer data
  •        ISDN requires a special ISDN modem
  •        Characteristics of ISDN:
  •      * Faster, but pricey
  •      * Doesn’t tie up phone line
  •      * Used by businesses and individuals


 BROADBAND / DIRECT CONNECTION


DIRECT CONNECTION


(always on connections)
  •          *Many home and small business users connect to the Internet via high-speed broadband    Internet service
  •           *PC is continually connected to the Internet
  •           *Direct connections are typically broadband
  •           *Used in the home and office
  •        *Because you are always connected, it is important to protect your computer from hackers



There are seven types of Direct Connection


  • Wifi
  • Cellular radio network
  • Cable internet service
  • Satellite internet service
  • Fixed wireless
  • DSL
  • Fiber to the  premises( FTTP)

DSL
  • *Broadband delivered over telephone lines
  • *Must be less than 3 miles from a switching station
  • *Transmits over telephone lines but does not tie up the line
  • *Fast, direct Internet access via standard telephone line

Wifi
  •  Data is transmitted through radio waves
  • Public wireless networks
  • Both free and fee-based are available
  • Currently Wi-Fi for short range, but WiMAX may soon be an option

       Wifi Hotspot
  •       Wifi hotspot are places that provide a user with free or paid internet service.
  •        Eg.cafe,airport,hotel,hostel offices or other public buildings.

 Wifi Hotspot




        Cellular radio network
  •        *Also known as Mobile wireless
  •        *Access via mobile phone or device
  •     *Offers high-speed Internet connections to devices with built-in compatible technology or   computers with wireless modems.
  •       *Example provider:- Celcom, Maxis, DiGi

 Cable Internet service
  • *  Cable modem: Most widely used home broadband connection
  •       Provides high-speed Internet access through    the cable television network via a cable modem
 Satellite Internet service
  •        Broadband option for rural areas
  •       More expensive than cable or DSL
  •    Available in many areas other broadband options are not
  •       Provides high-speed Internet connections via satellite.
  •       A satellite dish communicates with a satellite modem.
Fixed wireless
 
  •         *Uses radio transmission towers rather than satellites
  •         *Not available in all areas
  •         *Expected to use WiMAX
  •        *Provides high-speed Internet connections using a dish-shaped antenna to communicate via radio signals
FTTP

  •        *Also known as Broadband over Fiber (BoF)
  • *       *Delivers over fiber-optic cabling all the way to the building
  •       *Available in limited areas
  •       *Fast but expensive
  •      *Uses fiber-optic cable
  •      *Provide high-speed Internet access to house and business users.

There is the advantages and disadvantages of broadband



Advantages
Disadvantages

·          You don't need to dial an access number and risk getting a busy signal.
·          Broadband internet offers unlimited access and you won't be charged based on the connection duration.
·          Broadband internet not only gives you high speed internet access, it can also provide cheap phone services via VoIP technology.

          High monthly fee compared to dialup internet access.
          Higher security risk than dial up connection.  A personal firewall is needed to protect your computer.
          Not all phone wires are equipped for DSL service.  May not be available in rural or remote areas.


s    Differences between Dial Up and Direct connection

Criteria
Dial-up connection
Broadband
Speed
Slow, maximum speed  is 56 kbps
Faster, can go up to several megabytes per second
Equipment
 Less equipment compare to Broadband
More than dialup connection, change based on different broadband technology and speed
e.g Fiber Optic cable,
Availability
Dial-up can be accessed anywhere via a telephone line.
Broadband availability has become more and more widespread over the last few years in particular. satellite Internet is always an option for more rural areas that haven't been expanded to yet.


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