Assalum-o-alaikum, hope you all are doing good! Every one of us spends an ample amount of our daily life working with technology involving computers at some level. Do you know that the whole internal communication inside the computer is solely based on binary digits 0's and 1's? If not, I got you covered.

PHOTOGRAPH: DEVTO

What is a binary number system?

As we humans interact with each other, we use certain numbers to communicate our mathematical data with another. Like, bring 3 apples, it's 10:00 pm, etc. This number system we use in our daily life is based on digits 0 to 9 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) is a decimal number system. All the numbers no matter how large can be expressed with the combination of these digits and there is no end to the counting. In a similar way as the name suggests binary number system is based on two digits only 0 and 1, and any value can be represented using the combination of 0's and 1's. For example, 11 can be represented as 1011 in binary code.

Why do we need a binary number system?

As we all know computer systems are based on tiny electronic components such as million transistors magically placed inside the microprocessors. But there is a problem, these small devices can't perceive human language, in the case of electricity there can be only two states, either it's flowing or it's not. So we represent the flow of electric signal as 1 which represents High logic level and absence of signal or OFF state as 0 which represents Low logic level.

Photograph: Inventors Digest

Early computers

In the early days of computers (1950's), the data is entered as an input into a computer by toggling switches or by putting in in punched cards or punched paper tape.

Since computers only understood binary codes, with data to be processed represented as 1s and 0s, both switches and punched holes were suitable mediums to apply these two states - 'on' to represent 1 and 'off' to represent 0; a hole to represent 1 and no hole to represent 0.

Charles Babbage's(Father of computer) Analytical Machine (in 1837) and was operated using punched cards and tapes. Modern computers like your laptop still read data in binary representation but it is much efficient and more convenient to read this from microchips. Even the keyboards involve using binary digits. There is a membrane placed under the keypad mapped with electric switches designed on it, when you press the key, the corresponding binary code is applied and the character appears on your screen.

Conclusion

I hope you find this post interesting and useful. I hope now you all know how our data is processed in computer system. Let me know if you want me to post more content like this. Hope you guys learned something from my post.
Regards, @faizan2sheikh

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