Difference Between RAM And ROM?
Difference Between RAM and ROM: Explained
RAM and ROM are two types of computer memory that have different functions. RAM, or random access memory, is volatile memory that is used to store data that is currently being used by the computer. ROM, or read-only memory, is non-volatile memory that is used to store essential data that needs to remain unchanged, such as the firmware that controls the computer's startup process.
That summarizes the key differences between RAM and ROM:
| Feature | RAM | ROM |
|---|---|---|
| Volatility | Volatile | Non-volatile |
| Speed | Faster | Slower |
| Capacity | Less capacity | More capacity |
| Cost | More expensive | Less expensive |
| Uses | Stores data that is currently being used by the computer | Stores essential data that needs to remain unchanged |
| Examples | Main memory, cache memory | Firmware, BIOS |
RAM
RAM is used to store the operating system, programs, and data that are currently being used by the computer. When you open a program or file, it is loaded into RAM so that the CPU can access it quickly. When you close the program or file, it is removed from RAM.
RAM is volatile memory, which means that the data stored in RAM is lost when the power is turned off. This is why it is important to save your work frequently when you are using a computer.
ROM
ROM is used to store essential data that needs to remain unchanged, such as the firmware that controls the computer's startup process or the BIOS that controls its basic input/output functions. ROM is non-volatile memory, which means that the data stored in ROM is not lost when the power is turned off.
ROM is typically used to store small amounts of data that need to be permanent. However, there are also some types of ROM that can be erased and reprogrammed, such as EPROM and EEPROM.
Conclusion
RAM and ROM are two important types of computer memory that have different functions. RAM is used to store data that is currently being used by the computer, while ROM is used to store essential data that needs to remain unchanged.