① Overcoming High Price
Offering free services as well as trial versions to attract customers.
Offering various price contracts such as 요금 정액제 (flat-rate payment system) to lessen the burden of the customers.
② Overcoming Insufficient Infrastructure
effort to allowing WirelessInternet nets to open toward outsiders
Getting rid of the intermediate procedures by th
Internet telephony operator, over the Luxembourg-based firm’s plan to offer a cheap call service for the smartphone users, potentially curtailing telecom firm’s earnings.
Skype has released an updated mobile application, Skype 2.0, which allows users to make free or low-cost calls over the wirelessInternet. It announced Tuesday the 3G call service will be available to Korean users.
1 Introduction: Amazon.com
Amazon.com is a company founded in 1994, US. The name is from the world’s biggest river. Its logo represents a bent arrow from A to Z, which implies its will to deliver every product in alphabet to its customers. The bent arrow also represents customer’s satisfaction. Amazon.com began its Internet retail store service in 1995. At first, it only dealt with books, f
모바일 인터넷 (Mobile Internet)
Mobile-supported Internet
단말기의 이동성이 지원되는 인터넷
Internet over Wireless
이동 통신망에서의 인터넷 서비스 단말기(휴대폰,
PDA 등)를 통해 시간과 공간의 제약을 벗어나 언제,
어느 곳 에서나 자유롭게 정보의 송수신이 가능.
모바일 인터넷의 등장배경
네트워크
wireless-local area networks (Wi-Fi networks)
NOS
(Network Operating System)
software : Microsoft Windows Server, Linux, Novell Net Ware
Connection Point (between the computers)
Hubs
Simple devices that connect network components, sending a packet data to all other connected devices
Switch
Switch can filter and forward data to a specified destination on the networ