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 |
- 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
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
|
- 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.
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 modem: Most widely used home broadband connection
- Provides high-speed Internet access through the cable television network via a cable modem
- 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.
- 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
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Broadband
|
Speed
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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
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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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