Jumaat, 9 Februari 2018

Web Browser

Type of Internet connection:
1.Dial-Up Connection
2.Broadband Internet Connectionc / Dirrect Connection

Dial-up Connection

There are two types of Dial-up Connection,

1.Conventional Dial-up
2.ISDN( Integrated Service Digital Network

Conventional Dial-up
>To connect to the internet, your computer dials its modem and connect to a modem attach to your computer
  • PC has to dial via a phone lines to connect
Characteristic :
  • slower but cheaper
  • Ties up phone lines
  • Relatively secure from hackers
Example: TMNet


ISDN ( Intergrated Services 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 price
  • Does't ties up phone line
  • Used by bussines and individuals

Direct Connection / Broadband Internet Connection


(Always on Connection)

>PC is continually connected to the Internet
>Direct connections are typically broadband
>used in home and office


DSL ( Digital Subcriber Lines )
>Broadband delivered over telephone lines
>Must be less than 3 miles from a switching station
>Transmit over telephone lines but does not ties up the line
>Fast, Direct Internet access via standard telephone lines


>Requires DSL modem
>Example : - Streamyx without WiFi

Cable Internet Services / Cable Modem
>Cable modem: Most widely used home broadband connection
>Provides high-speed Internet access through the cable television network via a cable modem.

Fixed Wireless
>Uses radio transmission towers rather than satellites
>Provides high-speed Internet connections using a dish-shaped antenna to communicate via radio          signals.

Wi-Fi (Wireless Fidelity)
>Data is transmitted through radio waves
>Provide high-speed Internet connections to compatible or properly equipped wireless computers          and device.
>Example : Streamyx with WiFi

Wi-Fi Hotspot
>Wi-Fi hotspot are places thatprovide the user with freeor paid services 





Satellite Internet Services
>Provides high-speed Internet connections via satellite.
>A satellite dish communicates with a satellite modem.
>Broadband option for rural areas:
  • More expensive than cable or DSL
  • Available in many areas other broadband options are not

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

Tiada ulasan:

Catat Ulasan

Securitry measure

Definition of security measures: The precautionary measures taken toward possible danger or damage. Data Backup ➤A data backup is th...