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Electricityin Our Daily Lives
The Advantages of Electricity
Communication
- Telegraph- Phone- Radio- Television- Internet
Industries
- Production- Design- Medical Progress- Scientific Research etc.
And the Best
Epitomeof Those is …
Computer
Process
•CPU•Graphic Card
Input /Output
•Peripherals•Keyboard/Mouse/Monitor
Storage
•Hard drive/ External Storages•ROM/RAM
Computer
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
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.
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.
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.
Group 2