Computer ek programmable electronic device hai jo instructions ke according data process karta hai. Ye data ko store bhi karta hai aur future me use ke liye retrieve bhi kar sakta hai. Computer ka kaam IPO Cycle par based hota hai — Input → Process → Output. Is process me user keyboard ya mouse se input deta hai, CPU usko process karta hai aur monitor ya printer par output milta hai.
Computer ke main components hote hain:
• Input Devices – Keyboard, Mouse, Scanner
• Output Devices – Monitor, Printer, Speaker
• CPU – Computer ka brain (ALU, CU, Registers)
• Memory – RAM, ROM, Hard Disk
Computer ki main khasiyat speed, accuracy, storage aur automation hai.