What is cache main memory?
cache memory, also called cache, supplementary memory system that temporarily stores frequently used instructions and data for quicker processing by the central processing unit (CPU) of a computer. The cache augments, and is an extension of, a computer’s main memory.
Where is main memory cached?
The cache memory is located very close to the CPU, either on the CPU chip itself or on the motherboard in the immediate vicinity of the CPU and connected by a dedicated data bus. So instructions and data can be read from it (and written to it) much more quickly than is the case with normal RAM.
What is cache in operating system?
Computer EngineeringMCAOperating System. Cache is a type of memory that is used to increase the speed of data access. Normally, the data required for any process resides in the main memory. However, it is transferred to the cache memory temporarily if it is used frequently enough.
Is cache memory a primary memory?
Computer Memories store data and instruction. Memory system can be divided into 4 categories: CPU register….2. Secondary Memory / Mass Storage:
| Sr.No. | Primary memory | Secondary memory |
|---|---|---|
| 7. | Examples: RAM, ROM, Cache memory, PROM, EPROM, Registers, etc. | Examples: Hard Disk, Floppy Disk, Magnetic Tapes, etc. |
What are the types of primary memory?
Primary memory can be broadly classified into two parts:
- Read-Only Memory (ROM)
- Random Access Memory (RAM)
Why cache memory is faster than main memory?
Cache memory is faster than main memory. It consumes less access time as compared to main memory. It stores the program that can be executed within a short period of time. It stores data for temporary use.
What are types of cache memory?
There are two different types of cache memory: primary and secondary. Primary cache memory is found on the CPU itself whereas secondary cache memory is found on a separate chip close to the CPU. Although, as time has progressed, the secondary cache has become rather obsolete as most caches are found on the CPU.
How is cache memory different from primary memory?