This video shows you how online shopping is done in a subway station with the help of your smartphone. It’s a real application and is now used in South Koera!

I really love this video because it explains the concept of SSL (Secure Socket Layer) clearly in just 3 minutes. I hope you guys would enjoy it!

Study the following video and write down SIX adjustments that should be made to the workspace.

The following three animations show you some tips on using mobile devices in a more ergonomic way.

Smartphone Ergonomics - Safe Tips

 A few tips on the Posture of your body - Part 1 

A few tips on the Posture of your body - Part 2

RSI stands for Repetitive Strain Injury which is resulted from quick and repetitive work (e.g. repetitive tying motion). To avoid RSI, the working environment must be carefully designed. Here is the solution:

http://www.youtube.com/watch?v=Od3y4k4wDVE

Intensive use of computer may result in occasional or long-term health problems, namely, Upper limb disorders, Eye problems, Headaches and Stress or fatigue. To see how these problem are caused and how they can be avoided, take a look on the following video:

Do you want to know how WWW works? Let’s see the following video:

This video teaches you how to search effectively using a search engine. Enjoy! 

看了會讓您大吃一驚的科技展現，美國麻省理工學院媒體實驗室的天才學生普拉納夫(Prarnav Mistry)，發明了一項結合實體世界和虛擬世界的科技，令人又驚又喜；喜的是，對於未來生活，悠遊於實體和虛擬之間，將更自由無限，驚的是，對於現今的人們和企業而言，這場演講是一場提醒：「訊息上身，才有未來」。

影片來源:TED.com

Pipelining is used by almost all modern microprocessors to enhance performance by overlapping the execution of instructions. A common analogue for a pipeline is a factory assembly line.

Assume that there are three stages in building a car: 1. Build Frame, 2. Install Parts and 3. Paint.

For simplicity, assume that each task takes one hour to complete. If a single person were to work on the product it would take three hours to produce one product.  

If we had three people, one person could work on each stage, upon completing their stage they could pass their product on to the next person (since each stage takes one hour there will be no waiting). We could then produce one product per hour assuming the assembly line has been filled.

In terms of a pipeline within a CPU, each instruction is broken up into different stages. Pipelining allows different stages of several instructions to overlap. It means that execution of the next instruction can start before the previous instruction is fully completed. It can therefore increase the throughput of the computer.

Source of pictures: zone.ni.com/devzone/cda/tut/p/id/6650