What is a Computer?

 

Computer kya hota hai?

Computer ek electronic machine hai jo data ko store karta hai, process karta hai aur output deta hai.


Parts of Computer 

Input Devices

Input devices wo hote hain jinke through hum computer ko instructions dete hain.

Examples:

  • Keyboard

  • Mouse

  • Scanner

  • Microphone


Output Devices

Ye devices computer ke work का result show करते हैं.

Examples:

  • Monitor

  • Printer

  • Speakers

  • Projector


Processing Device

  • CPU (Central Processing Unit)
    CPU ko ही computer ka brain कहा जाता है.
    Saare calculations aur processing CPU karta hai.


Storage Devices

Ye devices data ko store karte hain.

Examples:

  • Hard Disk

  • SSD

  • Pen Drive

  • Memory Card


Types of Computer

Desktop Computer

Large screen + CPU box.
Office aur institutes me सबसे ज्यादा use hota hai.

Laptop

Portable hota hai. Battery par bhi chal sakta hai.

Tablet

Touch screen device, easily carry ho jata hai.

Smartphone

Ye भी ek छोटा computer hi hai (pocket computer).


Hardware vs Software

Hardware

Computer ka physical part जिसे हम छू सकते हैं.

Examples: Keyboard, Mouse, Monitor, CPU.

Software

Programs ya applications jo computer ko चलने में मदद करते हैं.

Examples:

  • Windows

  • MS Word

  • Chrome Browser

  • Tally


Operating System (OS) kya hota hai?

Operating System ek ऐसा software है jo computer ko चलाने में मदद करता है.

Most popular OS:

  • Windows

  • MacOS

  • Linux

  • Android


Basic Computer Terminology 

TermMeaning
Desktop                      Computer ka main home screen
File                      Document, photo, video etc.
Folder                      Files ko organize karne ke liye box
Browser                      Internet chalana (Chrome, Edge)
Internet                      World ka biggest network

Computer का Use कहाँ-कहाँ होता है?

  • Education

  • Office work

  • Business

  • Banking

  • Online shopping

  • Designing

  • Data entry

  • Programming



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