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.

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