Cache memory

Hello Readers,

Today i will discuss about cache memory and its importance.

Importance

• It Is Small faster Memory which stores copies of the data from the most frequently used by main memory location

• Actually it is placed between Microprocessor & RAM.

• It stored address of memory location by which microprocessor don't need to cache its address again and again. Once Cache Memory Cached That Address then RAM and Microprocessor Directly Operate it rapidly.

Uses

• Due to cache memory,average latency memory is increases

• and also It gives faster access to currently needed data

• It also reduces average time of accessing memory for RAM and Microprocessor

• It is special type of memory which is use to fast access to microprocessor

Types:

1. Level 1 (L1) cache or Primary Cache - L1 is the primary type cache memory. The Size of the L1 cache very small comparison to others that is between 2 KB to 64 KB.

2. Level 2 (L2) cache or Secondary Cache - L2 is secondary type cache memory. The Size of the L2 cache is more than L1 that is between 256 KB to 512 KB. It resides on computer microprocessor.

3. Level 3 (L3) cache or Main Memory - The L3 cache is larger in size but also slower in speed than L1 and L2,it's size ranges between 1 MB to 8 MB.

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