Memory Management: RAM, ROM and Cache RAM (Random Access Memory) - RAM is a volatile memory that is stored in the computer's main memory. - It is the fa...
Memory Management: RAM, ROM and Cache
RAM (Random Access Memory)
RAM is a volatile memory that is stored in the computer's main memory.
It is the fastest type of memory and is used for storing the running programs and data while they are being executed.
When the computer needs to access data, it must first search the RAM and if not found, it must read it from the hard disk.
Once the data is in the RAM, it is accessible by all the CPU and other components in the system.
ROM (Read-Only Memory)
ROM is a non-volatile memory that is stored on the hard disk.
It is used to store permanent data, such as the operating system, essential files, and some software.
ROM cannot be modified once it is installed on the hard disk.
Once the data is written to the ROM, it cannot be changed.
Cache Memory
The cache is a memory that is faster than RAM but slower than ROM.
It is used to store frequently used data and code.
The cache is divided into two parts: a physical cache and a logical cache.
The physical cache is a small, on-chip memory that is integrated with the CPU.
The logical cache is a larger, off-chip memory that is used by the CPU.
The cache is frequently updated with data that is accessed by the CPU