What is the difference between ram and cache memory

Data cache is typically set up in a hierarchy of cache levels sometimes called multilevel caches. L1 Level 1 and L2 Level 2 are the top most caches in this hierarchy of caches. L1 is the closest cache to the main memory and is the cache that is checked first.

L2 cache is the next in line and is the second closest to main memory. L1 and L2 vary in access speeds, location, size and cost. Cache memory is much faster and also expensive when compared with the RAM. But the capacity of the RAM memory is larger than the capacity of the cache memory. Further, the cache memory is also organized as a hierarchy as L1, L2 and L3 caches that differ in speed, cost and capacity.

Indika, BSc. Cache is a high-speed storing mechanism used by the CPU to provide faster access to frequently used program instructions or data likely to be requested by the CPU for its next operation.

RAM is a form of computer memory used to temporarily store all the information your computer is actively using for faster access. Cache is a fast memory component used by the central processing unit CPU of a computer to provide faster access to frequently used program instructions or data that the CPU is likely to need next.

Cache is small, fast memory that is conceptually and physically close to the CPU, thus more accessible to the processor. It dramatically reduces the average time it takes for the CPU to access desired information. The idea is to design a memory controller that can move data back and forth between slow and fast memory in hardware. Cache memory is sometimes called CPU memory because it is inserted between the processor and the main memory to decrease the average access time for data. Cache memory is categorized as levels: Level 1 cache L1 cache or primary cache, Level 2 cache L2 cache or secondary cache, and Level 3 cache L3 cache or tertiary cache.

RAM is an acronym for random access memory, a type of computer memory that allows information to be stored and retrieved on a computer.

RAM is a short-term digital storage of a computer. All requests, whether instructions or data, go to the random access memory. RAM is a volatile memory, but it provides infinite write cycles and fast read and write operations, making it suitable for the main memory of electrical equipment.

It is an extremely fast computer memory which temporarily stores all the information your computer is actively using for faster access. The data to be processed by the computer changes frequently. So the data must be stored in a type of memory from which they can be easily read by the microprocessor, modified and written back for storage. However, it is a volatile memory, meaning it cannot hold data when the power is interrupted.

RAM, short for random access memory, is an extremely fast computer memory which temporarily stores all the information your computer is actively using. Cache memory, on other hand, is a type of random-access memory that works between RAM and the CPU, and that provides faster access to frequently used program instructions or data that the CPU is most likely to need next.

Cache memory is sometimes called CPU memory because it is conceptually and physically located close to the CPU, which stores copies of data or instructions from frequently used main memory locations in order to provide high-speed access by the processor. Cache is located closest to the CPU. The CPU requires more time to access the hard disk. Therefore, the programs that should execute are brought into the RAM so that they can be executed faster.

It takes only a short time to access data from the RAM when compared to accessing data from the secondary storage medium such as hard disk , and solid state drive. It is a volatile memory , which requires a continuous flow of power to maintain the data. Interruptions or power failures can delete the data stored in the RAM. It can have bit or bit data paths. This refers to the number of bits that are transferred in 1 clock cycle. A computer with more RAM will have a higher performance.

The DRAM consists of a capacitor and a transistor. The capacitor can change, discharge and represent the logical one and logical zero. There is a leakage current due to the capacitor, and it causes the capacitor to lose charge. This can delete the content in DRAM. Therefore, DRAM requires constant refresh cycles to retain data. Moreover, SRAM contains flip-flops to store data. It does not require refresh cycles to retain data like in DRAM. Cache is a component in the computer that stores data so that future requests for that data can be served faster.

RAM is a form of computer data storage that stores data and machine code currently being used.