When we type any character(all alphabates,sighns,integers are treated as character) through keyboard,it generates electrical signals send to cpu is called data.
This electrical signals are processed and displayed on monitor or come to us in a meaningful manner by any output device is called information.
If we press 2 + 3 on our keyboard or keypad then 2,+,3 individually does not make any sense this are called data but when computer shows us 2+3=5 then this has a meaning to us then it is called information.
If we press any key of our keyboard.
- it generates some electrical signals with the combination of voltage 0.5volt and 3volts.
Each 0.5volt current is represented by 0 and Each 3volt current is represented by 1
| | | | | | | | ← Voltage Generates inside Computer |
| | | | | | | | ← We represent each voltage with 0 and 1 |
ASCII CODE of is
The number system that developed with 1 and 0 is called binary number system.So each character has equivalent binary number. We can convert this binary number to equivalent decimal number sytem (A number in decimal number system can be made by any combination of 1,2,3,4,5,6,7,8,9,0) which we use in regular life.