The document explains caching in Windows, detailing its function as a temporary storage to speed up the loading of websites and applications. It describes different levels of cache memory (L1, L2, and L3) and their characteristics, including their speed and integration with the CPU. Additionally, it covers cache mapping techniques, such as direct, associative, and set-associative mapping, and highlights the benefits of cache memory in improving data access efficiency.

1. Caching In Window
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2. Introduction :
• A Cache is a Reserved storage location that collects
temperory data to help websites , browser and apps
to load faster.
• Caching occurs under the direction of the cache
manager, which operates continuously while
Windows is running.

3. What is Cache Windows?
• The Cache is a section of computer’s
memory where your temporary internet
files are stored.
• Saving internet files is your computer’s
way of speeding up the process of
opening web pages faster.

4. Cache Memory
• Cache Memory is a very high speed memory.
• It is used to speed up and synchronizing with high speed
CPU
• Cache is an extremely fast memory type that acts as a
buffer between RAM and CPU

5. Level of Cache Memory
Level 1 Level 2 Level 3

6. Level 1 Cache
• It is a type of memory in which data is stored and
accepted that are immediately stored in CPU.
• Memory Size : 2KB to 64KB
• It is integrated inside the CPU
• It has two types of Cache
1. Instruction Cache
2. Data Cache

7. Level 2 Cache
• The Level 2 Cache could be Inside the CPU or
outside the CPU.
• Memory Size : 256KB to 512KB.
• It is the fastest memory which has faster access
time where data is temporarily stored for faster
access.

8. Level 3 Cache
• Level 3 cache is specialized memory developed to
improve the performance of L1 and L2.
• It usually double the speed of DRAM.
• With multicore processors, each core can have
dedicated L1 and L2 cache, but they can share an L3
cache..

9. Cache Mapping
• Cache mapping is a technique by which the
contents of main memory are brought into
the cache memory.
• There are three Different types of Cache Mapping:
i) Direct Mapping
ii) Associative Mapping
iii) Set-Associative Mapping

10. i) Direct Mapping
• In Direct Mapping , assign
each memory block to a
specific line in the cache.
• Direct Mapping performance is
directly proportional to the Hit
Radio.

11. ii) Associative Mapping
• Any block can go
into any line of the
cache.
• It is considered to
be the fastest and
most flexible
mapping form.

12. iii) Set-associative Mapping
• Set-associative Mapping
addresses the problem of
possible thrashing in the
direct mapping method.
• It combines the best of
direct and associative cache
memory technique.

13. Application of Cache Memory
• It reduce the average time to access data from the
Main memory.
• Cache memory improves the efficiency of data
retrieval.
• The correspondence between the main memory
blocks and those in the cache is specified by a mapping
function.

14. Thank You!