✍️ When You Type, You See Letters — But the Computer Sees Numbers

Let’s say you type:

A

The computer doesn’t see the letter A.
It sees a number: 65

And then it turns 65 into:
01000001

That’s the real code for “A” in binary.

Every key on your keyboard has a number.

 

💬 Let’s See Some More

Letter Number Binary
A 65 01000001
B 66 01000010
a 97 01100001
space 32 00100000
! 33 00100001

So the sentence:

Hi!

becomes:

  • H = 01001000

  • i = 01101001

  • ! = 00100001

📖 What About a Whole Story?

Let’s write:
The dog ran.

That’s 12 characters (including the dot and spaces).
So that’s 12 bytes.
Each byte is made of 8 bits.

So 12 × 8 = 96 bits.
That’s 96 switches flipping ON and OFF just to store a small sentence!

 

📥 Why It’s Important

This is how:

  • Books are typed

  • Emails are sent

  • Web pages are read

  • Chat messages are saved

Even if you write one tiny word… your computer is flipping dozens of switches in a special pattern to keep it.

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