3. Describe a short history of development of cellular technology from 1G to 3G with a prediction of 4G and beyond.
History of cellular techonolgy
History of cellular techonolgy
Pervasive networks
13 years ago
Showing posts with label Homework. Show all posts
Showing posts with label Homework. Show all posts
Monday, October 13, 2008
Monday, September 29, 2008
Homework, 9-27-2008
1. Install Google Browser Google Chrome and Firefox 3.0, try a few websites and compare their performance. For example, youtube, blogspot, msn, and yahoo.
2. Subscribe to our course website by Google reader, put the Google reader block on your iGoogle.
Done, as the image below.
3. Comment on the article Serious potential in Google's Browser
4. Watch the video recording of Larry Page's "Broadband for the future."
done.
Monday, September 22, 2008
Kai-Fu Lee, www Conference Talk 2008, "Cloud Computing"
Cloud computing is an abstract server and move anywhere and scalable. Cloud computing is the future of computing.
What do peoples want from internet? Peoples want freedom, want their data anywhere they are. They want easy to learn and easy to use, especially their own data to be secure and not lost. People are using cloud services to find, share, create, and organize information. Cloud computing will be accessible not only on PCs but also telephones, automobiles, televisions, and appliances.
There are 4 attributes that solves users' problem: Data stored on the cloud (cloud here means some servers that user don't know), Software services on the cloud (access via web browser), Based on standards and protocols (such as Linux, Ajax, LAMP), and Accessible from any device, especially phones. Cloud computing has 6 properties from Google's perspective :
1. User centric : Data that stored in cloud is yours also can share with others.
2. Task centric : Combine some applications in one application (For example Gmail integrates a chat feature for instant communication.)
3. Powerful : It can do that PC can't do
4. Accessible : can instantly get more information from different repositories.
5. Intelligent : massive data storage + massive data analysis = Google Intelligence
6. Programmable : Every piece of data is replicated three times. (Google's infrastructure)
What do peoples want from internet? Peoples want freedom, want their data anywhere they are. They want easy to learn and easy to use, especially their own data to be secure and not lost. People are using cloud services to find, share, create, and organize information. Cloud computing will be accessible not only on PCs but also telephones, automobiles, televisions, and appliances.
There are 4 attributes that solves users' problem: Data stored on the cloud (cloud here means some servers that user don't know), Software services on the cloud (access via web browser), Based on standards and protocols (such as Linux, Ajax, LAMP), and Accessible from any device, especially phones. Cloud computing has 6 properties from Google's perspective :
1. User centric : Data that stored in cloud is yours also can share with others.
2. Task centric : Combine some applications in one application (For example Gmail integrates a chat feature for instant communication.)
3. Powerful : It can do that PC can't do
4. Accessible : can instantly get more information from different repositories.
5. Intelligent : massive data storage + massive data analysis = Google Intelligence
6. Programmable : Every piece of data is replicated three times. (Google's infrastructure)
Summary : Evolutions of Cellular Phones by Nokia
The introduction of communication is dramatically changing our lives. The ability to communicate anytime, anywhere increases our quality of lives and improves our business productivity. Since invention "Talk to a box" in 1876 then people start to have more intensely to develop or invent in communication system. After "Talk to a box" in 1876, "Listen to a box" in 1896, "Watch a box" in 1925, "Command a box" in 1944, "Take the box with you" in 1980s. In 1996-2006, many applications are invented and developed. Nowadays peoples use the box to listen to the world, recording everything (what we see, say, feel, hear, etc.).
There's one dimension that Tirri (Researcher at Nokia) mentioned in Conference, PerComm 2007, is Participatory Sensing. The new invention is that mobile phones can show the Air Pollution tracking data (EPA), see the traffic using GPS, location of the car in parking lot, sports performance. Tirri said 5 keys technological challenges, they are Sensor data, Mobile connectivity, Integration, Power, and Scaling down.
There's one dimension that Tirri (Researcher at Nokia) mentioned in Conference, PerComm 2007, is Participatory Sensing. The new invention is that mobile phones can show the Air Pollution tracking data (EPA), see the traffic using GPS, location of the car in parking lot, sports performance. Tirri said 5 keys technological challenges, they are Sensor data, Mobile connectivity, Integration, Power, and Scaling down.
The rise of mobile telephony gives us the chance to observe the adoption of a new technology. Beyond providing insight into innovation, it affords us the chance to see how the innovation is accepted and how it causes the revision of existing values and practices.
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