To start up with lets look back at what computer is.computer is an electronic electromechanical ta be precise device that can take inpute,process it and give the desired output with the facility of storing the output.
Now to be exact for a computer to function,we must feet something to it.We do it through the input device.The simplest input device is the keyboard.When you press a key,the corresponding aiphabet appears on the output device ,monitor.How is this possible the monitor and keyboard are complected different device.The only common thing between them is that they are both connected to cpu.so how does aiphabet appear on the monitor when we press a key there might be something that two devices and that is electricity.
You will also agree that if there is no electricity or the source of power,and then the computer cannot operate.So the basic operation of a computer is purely by the use of electricity.Now the question may arise how electricity helps attain the exact letter that we pressed.here we are talking about the characteritics of a computer,which demands accuracy and reliability.
Let,s first know that electricity is measured in terms of voltage and current.now when you press the letters,voltage we usually use voltage as a measurement of electricity for digital data is generated only from that part the area where the key is placed.
Now to be exact for a computer to function,we must feet something to it.We do it through the input device.The simplest input device is the keyboard.When you press a key,the corresponding aiphabet appears on the output device ,monitor.How is this possible the monitor and keyboard are complected different device.The only common thing between them is that they are both connected to cpu.so how does aiphabet appear on the monitor when we press a key there might be something that two devices and that is electricity.
You will also agree that if there is no electricity or the source of power,and then the computer cannot operate.So the basic operation of a computer is purely by the use of electricity.Now the question may arise how electricity helps attain the exact letter that we pressed.here we are talking about the characteritics of a computer,which demands accuracy and reliability.
Let,s first know that electricity is measured in terms of voltage and current.now when you press the letters,voltage we usually use voltage as a measurement of electricity for digital data is generated only from that part the area where the key is placed.
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