about the broadband technology

1. Broadband technology

2. What exactly is broadband?
The term broadband commonly refers to high-speed Internet access that is always on and faster
than the traditional dial-up access. Broadband includes several high-speed transmission technologies
such as:
1. DSL
2. Cable
3. Satellite
4. Wireless network
DSL
DSL is a wireline transmission technology that transmits data faster over traditional copper telephone lines
already installed to homes and businesses. DSL-based broadband provides transmission speeds ranging from
several hundred Kbps to millions of bits per second (Mbps). The availability and speed of your DSL service may
depend on the distance from your home or business to the closest telephone company facility.

3.  Pros of DSL
The cost of DSL is sometimes cheaper than other internet services.
There are no new wires needed for service. DSL runs over standard phone lines.
It’s always on – no need to dial in or wait for services to start up.
 Cons of DSL:
Typically service is provided by the phone company, which means you’ll also likely be required to carry
phone service.
Speeds are dependent on your proximity to the DSL main distribution point. The closer you are the
faster your service will be. Your speed will slow down the farther you get from the main distribution
point.
Some DSL providers implement data caps

4. Cable
Cable internet uses the pay TV cable network to bring us broadband internet access
Pros
1. doesn’t tie up the phone line while we are on internet
2. It is cheaper than other technologies
3. There Is no need to dial-up the internet
Cons
1. Cable in not available everywhere
2. Some building may not be cabled internaly

5. Satellite
Rather than relying on a network of broadband wires or cables, satellite broadband is transmitted
wirelessly via a satellite dish. It works in a similar way to satellite TV, except those services just receive
information. With a satellite broadband connection you also send out – or upload - data to the
satellite.
Read more: https://www.which.co.uk/reviews/broadband/article/what-is-broadband/what-is-satellite-broadband-aC93e0D0uVtM - Which?
Pros
1. It is available everywhere
2. A single satellite service provider can support a large numbers of users within the satellite
footprints
Cons
1. It is expensive(Prices start at around £20 a month, rising to more than £100)
2. It can be affected by bad weather

6. Wireless network
Wireless networks are computer networks that are not connected by cables of any kind. The use of a wireless
network enables enterprises to avoid the costly process of introducing cables into buildings or as a connection
between different equipment locations. It is classified into 2 types
1. WLAN(wireless local area network)
2. WWAN(wireless wide area network)
WLAN
A wireless local area network (WLAN) is a wireless distribution method for two or more devices. WLANs use high-
frequency radio waves and often include an access point to the Internet. A WLAN allows users to move around the
coverage area, often a home or small office, while maintaining a network connection. Popular WLAN technology are:-
 Wi-Fi (Wireless fidelity)
 Bluetooth
Wi-Fi (Wireless fidelity)
Wi-Fi is the wireless technology used to connect computers, tablets, smartphones and other devices to the
internet. Wi-Fi is the radio signal sent from a wireless router to a nearby device, which translates the signal into data
you can see and use.

7. Pros
1. Convenience
2. Mobility
3. Productivity
4. Expandability
5. Cost
Cons
1. Security
2. Range
3. Reliability
4. speed

8. Bluetooth
Bluetooth® refers to a wireless technology which allows digital devices to easily transfer files at high speed.
Bluetooth is common in many portable devices such as laptops, PDAs, mobile phones, smartphones and tablets.
Pros
1. Avoids interference from other devices
2. Easily upgradeable
3. Lower power consumption
4. Free to use
5. Used for transfer voice and data
Cons
1. Has low bandwidth
2. Allows only short range communication between devides
3. Can loose connection

9. WWAN
A wireless wide area network (WWAN). Also called "wireless broadband" or "broadband wireless," wireless WANs
use cell towers to transmit a radio signal within a range of several miles to a moving or stationary device.
Pros
1. Flexible to use
2. New nodes can be added
3. Can be use in remote area
Cons
1. It is costly
2. High security risk
3. It uses line-of-sight between receiving and transmitting points.