Day 5: CPU – ALU, CU, Registers (Asaan Bhasha Mein)

CPU – ALU, CU, Registers (Asaan Bhasha Mein)

1️⃣ CPU kya hota hai?

CPU ka full form hai Central Processing Unit।
CPU computer ka sabse important part hota hai।

👉 Simple shabdon mein:
CPU = Computer ka dimaag 🧠

CPU computer ke saare kaam ko control karta hai।
Jo bhi calculation, decision ya process hota hai, wo CPU hi karta hai।

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2️⃣ CPU ke main parts

CPU ke 3 main parts hote hain:

1. ALU

2. CU

3. Registers

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3️⃣ ALU (Arithmetic Logic Unit)

✅ ALU kya hai?

ALU CPU ka wo part hai jo calculation aur logic ka kaam karta hai।

✅ ALU ka kaam

• Hisaab lagana (+, −, ×, ÷)

• Comparison karna (>, <, =)

• Logical decisions lena

👉 Example:
2 + 3 = 5 → ye kaam ALU karta hai।

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4️⃣ CU (Control Unit)

✅ CU kya hai?

CU CPU ka wo part hai jo computer ke sabhi parts ko control karta hai।

👉 Simple shabdon mein:
CU = Computer ka manager 👨‍💼

✅ CU ka kaam

• CPU aur devices ko instruction dena

• Data ka flow control karna

• Hardware aur software ko coordinate karna

👉 Example:
Keyboard se data aaya → CU decide karega ki data kahan jayega।

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5️⃣ Registers

✅ Registers kya hote hain?

Registers CPU ke andar chhoti memory hoti hai jo data temporarily store karti hai।

👉 Simple shabdon mein:
Registers = CPU ki fast memory ⚡

✅ Registers ka kaam

• Data ko kuch time ke liye rakhna

• Fast processing mein help karna

👉 Example:
Jab CPU calculation karta hai, to data registers mein temporarily store hota hai।

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✅ Easy Summary (Yaad rakhne layak)

• CPU = Computer ka dimaag

• ALU = Calculation aur logic

• CU = Control aur management

• Registers = Fast temporary memory

👉 Formula yaad rakho:
CPU = ALU + CU + Registers

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