Chapter 15, Problem 43E

Explanation of Solution

Three technologies used for connecting home computer to the Internet:

• Phone modem
• Digital Subscriber Line (DSL)
• Cable modem

Phone modem:

Phone modem converts the computer data into analog signal to transfer through the telephone line and at the destination; it converts the analog signal to the computer data. Audio signals in phone modem is represented using binary 0 and binary 1.

Advantages of Phone modem:

• It requires only phone connection and does not require any extra equipment to connect to the Internet.
• It is less expensive when compared with other connections.

Disadvantages of Phone modem:

• It is difficult to receive incoming calls and dial up an outgoing call while using Internet.
• Slow transmission rate
• Loading of web pages is slower when compared to broadband connection.

Digital Subscriber Line (DSL):

DSL is a technology that provides high-speed internet access using a broadband modem.

• The speed and availability of DSL service depend on the distance from the telephone company.
• It is used to transfer data, audio, video through the copper phone line.

Advantages of DSL:

• Speed of the DSL is faster than other modem...