Electricity in our daily lives

student presentation
muic mahidol
march 2009

1. Electricity in Our Daily Lives

2. The Advantages of Electricity Communication Telegraph Phone Radio Television Internet Industries Production Design Medical Progress Scientific Research etc.

3. And the Best Epitome of Those is …

4. Computer

5. Computer

6. Process The electricity flows through the semi conductor gate by conveying the signal of binary of “0” and “1”. The smaller the CPU, the faster the switching time; hence, faster process. *A video graphic processing unit uses the same methods. It processes only the visualization

7. Storage Devices Hard disks It uses a non-magnetic platter coated with a magnetic materials. The platter spins at a high velocity. The information is written or read when it passes though the read and write heads. The heads detect the magnetization of the platter. The information is stored as binary digits format.

8. Random Access Memory (RAM) It is kind of a circuit that is used to store the information by changing the state of circuit or by changing the charge of capacitor. It needs to be fed by electricity. When the power is out, the memory will be reset; therefore, the information will be erased.

9. Display In the modern world, the most popular type of monitor is LCD (Liquid Crystal Display). A pitch of one pixel is made of liquid which reacts to voltage. When voltage flows to this pitch, the color will change.