What is Accessing the Internet ? Dial-up service vs DSL Service vs. Cable ?

Accessing the Internet :

What is Accessing the Internet ?
The Internet today is an internetwork that allows any user to become part of it. 
The user, however, needs to be physically connected to an ISP. 
How can I access Internet for free?
How do you create a physical connection?
The physical connection is normally done through a point-to-point WAN.
In this section, we briefly describe how this can happen.

List & Describe Four Methods That Are Used to Connect to the Internet =
What are ways to access the Internet?

1__Using Telephone Networks: 
What is Telephone Networks ?
How does a computer connect to Internet with a telephone network ?
Today most residences and small businesses have telephone service, which means they are connected to a telephone network.
Since most telephone networks have already connected themselves to the Internet, one option for residences and small businesses to connect to the Internet is to change the voice line between the residence or business and the telephone center to a point-to-point WAN. 

what is the difference between dial up and DSL Service =
difference between dial up and 
DSL:
How can you connect the Internet through telephone?
This can be done in two ways :
1_Dial-up service :
What is Dial-up service ?
The first solution is to add to the telephone line a modem that converts data to voice. 
The software installed on the computer dials the ISP and imitates making a telephone connection. Unfortunately ,the dial-up service:
 is very slow, and when the line is used for Internet connection, it cannot be used for telephone (voice) connection.

2__DSL Service :
What is DSL Service ?
Since the advent of the Internet, some telephone companies have upgraded their telephone lines to provide higher speed Internet services to residences or small businesses. 
The DSL service also allows the line to be used simultaneously for voice and data communication. 
Difference Between Dial-Up Modem and DSL .

3__Using Cable Networks : 
What is Cable Networks ?
More and more residents over the last two decades have begun using cable TV services instead of antennas to receive TV broadcasting.
The cable companies have been upgrading their cable networks and connecting to the Internet.
 A residence or a small business can be connected to the Internet by using this service.
It provides a higher speed connection, but the speed varies depending on the number of neighbors that use the same cable.

Dial-Up vs. DSL vs. Cable ?

4__Using Wireless Networks :
What is Wireless Networks ? 
Wireless connectivity has recently become increasingly popular. 
A household or a small business can use a combination of wireless and wired connections to access the Internet. 
With the growing wireless WAN access, a household or a small business can be connected to the Internet through a wireless WAN. 





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