What is cache memory in hindi?Cache Memory, ya choti yaddasht, ek computer ki pramukh yaddasht pranali ka hissa hoti hai jahan par data aur instructions ko temporary taur par store kiya jata hai taki unhe jaldi access kiya ja sake. Cache memory ka istemal computer ke main memory (RAM) aur CPU ke beech ki communication ko tez karne ke liye hota hai. Cache memory computer ke performance ko sudharne mein bhi madad karti hai.
Cache memory ke kuch mahatvapurna points:
- Fast Access: Cache memory main memory se kai guna tez hoti hai. Isliye jab koi data ya instruction CPU ke liye chahiye hota hai, toh CPU pehle cache memory mein dekhta hai kyonki yahan par data jaldi mil jata hai.
- Levels of Cache: Cache memory multiple levels mein hoti hai, jinmein L1, L2, aur L3 shamil hote hain. L1 cache sabse najdeek hoti hai CPU ke saath aur choti hoti hai, L2 cache thoda bada hota hai aur thoda dur CPU se hota hai, aur L3 cache sabse bada hota hai lekin CPU se sabse dur hota hai.
- Cache Hit and Cache Miss: Jab CPU cache memory mein data ko khojta hai aur use mil jata hai, toh yeh ‘cache hit’ kehlata hai. Lekin kabhi-kabhi data cache memory mein nahi milta, isse ‘cache miss’ kehte hain aur phir data ko main memory se fetch karna padta hai.
- Working Principle: Cache memory data ko blocks mein store karti hai. Jab CPU ko kisi specific memory location ki jarurat hoti hai, toh cache memory se yeh pata chalta hai ki woh location cache mein hai ya nahi. Agar hai toh woh data cache hit se mil jata hai, aur agar nahi toh cache miss ho jata hai aur data ko main memory se fetch karna padta hai.
- Types of Cache: Cache memory do prakar ki hoti hai: instruction cache (ya I-cache) aur data cache (ya D-cache). I-cache CPU ke liye instructions ko store karti hai, jabki D-cache data ko store karti hai.
- Cache Size: Cache memory ka size CPU se juda hota hai. Modern processors mein aksar alag-alag levels ke cache hote hain jaise ki L1, L2, aur L3, jinki size alag-alag hoti hai. Jyada cache size generally better performance deta hai, lekin iska cost bhi jyada hota hai.
Cache memory ek pramukh computer architecture concept hai jo CPU ki speed aur main memory ke communication ko tez karne mein madad karta hai. Yeh ek important factor hai modern computing ke liye, jo ki performance improvement aur overall system efficiency mein mahatvapurna bhoomika nibhata hai
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