Internet Access Technologies Chaiporn Jaikaeo Department of Computer Engineering Kasetsart University 01204325 Data Communications and Computer Networks Based on lecture materials from Data Communications and Networking, 5 th ed., Behrouz A. Forouzan, McGraw Hill, 2012. Revised 2018-10-04
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Internet Access Technologies - Kasetsart University
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Internet Access Technologies
Chaiporn Jaikaeo
Department of Computer EngineeringKasetsart University
01204325 Data Communications and Computer Networks
Based on lecture materials from Data Communications and Networking, 5th ed.,Behrouz A. Forouzan, McGraw Hill, 2012.
Revised 2018-10-04
2
Outline• Telephone lines
•Dial-up modems
•Digital Subscriber Line (DSL)
•Cable TV networks
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Access Technology• Internet access technology◦ A data communications system that connects an Internet subscriber
to an ISP (Internet Service Provider)
◦ Such as a telephone company
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Narrowband vs. Broadband•Both refer to access technologies◦ Narrowband → typically 128 kbps
◦ Broadband → typically 1 Mbps
•Narrowband access technologies◦ Dial-up telephone line
◦ Leased line
•Broadband access technologies◦ Digital Subscriber Line (DSL)