Lesson 1: Introduction to Computers & Hardware Basics

IPO Model (Input-Process-Output)
IPO Model (Input-Process-Output)
CPU architecture — ALU, CU, MU
CPU architecture — ALU, CU, MU
Primary vs Secondary Memory
Primary vs Secondary Memory

Lesson 1: Introduction to Computers & Hardware Basics

IPO Model (Input-Process-Output)
IPO Model (Input-Process-Output)
CPU architecture — ALU, CU, MU
CPU architecture — ALU, CU, MU
Primary vs Secondary Memory
Primary vs Secondary Memory

1. Introduction to Computers

Computer ek electronic device hai jo raw data ko input ke roop me leta hai, use process karta hai aur ek meaningful output pradan karta hai.

Components of Computer System:

  • CPU (Central Processing Unit): Isse computer ka brain kaha jata hai. Yeh teen bhaagon me bata hota hai: ALU (Arithmetic Logic Unit), CU (Control Unit) aur MU (Memory Unit).
  • RAM (Random Access Memory): Yeh computer ki temporary (volatile) primary memory hai. Computer chalte samay active program ka data yahi store hota hai.
  • ROM (Read Only Memory): Yeh permanent (non-volatile) memory hai jisme system ke start hone ke liye zaroori commands (BIOS) hote hain.

Input & Output Devices:

  • Input Devices: Keyboard, Mouse, Scanner, Microphone (inke dwara hum computer ko instruction dete hain).
  • Output Devices: Monitor, Printer, Speaker, Projector (inke dwara computer hume final result dikhata hai).