Why cache memory is called internal or main memory?

Is cache memory is main or sec memory?

cache memory is neither main memory nor second memory. DDR's are Main memory and Disk is second memory.

What is a cache?

Answer:- The Cache memory is placed between the CPU and the main memory. It is a fast speed memory and is expensive and faster than the main memory. Cache memory is used to store the frequently accessed data of main memory. The instructions that are frequently used by the CPU are stored in the cache memory. It is used to reduce the average access time for address, instructions or data, which are normally stored in the main memory. Cache memory increases the operating speed of the system. But is much costlier than main memory. From economic considerations, the capacity of the cache memory is much less as compared to main memory..

Cache memory and register memory?

Register memory are smaller in size than cache memory and registers are faster than cache..Cache memory store the frequently used data from main memory..

Is cache memory is the main memory of cmputer system?

NO...The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory.Thus Cache memory is not main memory of computer system.--- form Wiki

Why is cache memory smaller than main memory?

because cache memory is costlier than main memory and physical size of cache memory also matters.ignoring the cost , if we use large cache memory, it will take larger physical space.so mother board won't be able to accomodate it

Is cache memory necessary?

The cache memory is used to store the frequently used data in the main memory in order to avoid the elapse of the seek time taken to read that data in the main memory.. So, to improve the performance of a PC, its necessary to have cache memory.

What type of memory stores frequently used instructions or data needed by the CPU?

the memory that directly communicates with the CPU is called Cache Memory this is; When the processor(CPU) needs to read from or write to a location in main memory, it first checks whether a copy of that data is in the cache. If so, the processor immediately reads from or writes to the cache, which is much faster than reading from or writing to main memory. A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory. [by Deogratius Ambrose IAA-Tanzania] the memory that directly communicates with the CPU is called Cache Memorythis is; When the processor(CPU) needs to read from or write to a location in main memory, it first checks whether a copy of that data is in the cache. If so, the processor immediately reads from or writes to the cache, which is much faster than reading from or writing to main memory. A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory. [by Deogratius Ambrose IAA-Tanzania]

What if Cache size is equal to main memory size?

If we took size of cache as large as size of main memory then the main purpose of cache(take less time) would come to end, as larger the cache slower would be it's processing speed.

How is the miss penalty in cache calculated?

The miss penalty in cache is calculated by determining the time it takes to access data from the main memory when a cache miss occurs. This time includes the latency of fetching the data from the main memory and loading it into the cache. The miss penalty is the additional time required when data is not found in the cache and needs to be retrieved from the main memory.

Can you replace cache instead of main memory?

yes

What memory locations are the fastest in terms of access solid state drives cpu registers main memory l1 cache?

Cache

Which type of memory is primarily used in cache memory?

Cache memory is composed of 2 types of memory:RAM (Random Access Memory) this is used to store the data copied from main RAM as a series of Cache LinesCAM (Content Addressable Memory) this is used to store the main RAM address for each Cache Line, so the data in Cache Memory can be found and associated with main RAM. The CAM also typically contains special flags (e.g. the "dirty" bit - indicating that the Cache Line has been modified and will have to be written back to main RAM).Cache memory also contains controller logic to coordinate the necessary actions.The first computer built to have what we now call Cache memory was the IBM Stretch 7030 introduced in 1961. However IBM at the time called this feature "Virtual memory". (Confusing isn't it?)