Database , What is data , what is file system, what is Database

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• What is Data 

 Data is a collection of row facts , figures or symbols that one their own have no meaning until they are processed or organized 

• Examples of data 
1. A number.85
2. A number: "blue"
3. A word : 17/06/2025
4. A Name : "Rahul"
By themselves, these don't tell you much but when organized 

"Rahul second 85 marks in science on 17/06/2025." > This becomes information 

• What is Database 


  1.  A Database is an Organized Collection Of  Pleated Data That is Stored And Managed In A Structured Way So It Can Be Easily Access Managed And Update 

• What is File System 

  1. A file System Is A method or Structure used by an operation System To store Organize , Retrieve And Manage Data On Storage Devices Like Hard Drives SSDs ,USDs, etc.
  2. A File System Helps your Computer Know where Your File Are Saved How to Access Them And How to Organize Them In Folders Directories. 
Examples Of file system 

-FAT32 (Older window) NTFS ( Modern Window) , ext3/ext4 (Linux ) , HFS+/APFZ(MacOS)

Imagine A Library 
  1. 📚 Each Book = a File 
  2. 🗂️Each Shelf Or Section = a Folder 
  3. 🏦 the Catalog System = The file System 






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