When choosing gadgets like mobile phones and laptops, people often ask: what is the difference between ROM and RAM? What are they? And how are they important to the device?
What is ROM?
Read Only Memory or ROM is the type of memory that comes with the computer and doesn’t need electricity to hold data– it’s also known as non-volatile. It is also where the programs to boot your computer up are pre-written.
What is RAM?
Random Access Memory or RAM is the other type of memory in your computer which needs electricity to hold data (volatile); the data disappears as soon as the source of power disappears. It is the computer’s main memory, for it is the memory used while doing any and all tasks.
What is the difference between them?
RAM is the memory used to temporarily store necessary data to keep your device running smoothly especially when multitasking. It is the memory used by the device for simple but necessary processes such as switching applications or simply moving your cursor. Therefore, the bigger the RAM, the faster and smoother these processes are. However, bigger RAM means consuming more electricity.
In contrast, ROM not only doesn’t need electricity, but it stores the data permanently. It is always big enough to store the most essential programs like the ones used to boot up your device. Unlike the RAM which you can modify or upgrade to suit your needs, it is always pre-installed.
In terms of processing data, RAM always alters as opposed to the ROM whose data, once written, can only be read.
How are they important to the device?
Both are necessary because they work in tandem to make your device function. Without them, your device is as good as broken. However, when searching for a new gadget, RAM holds more weight than ROM.
Even though both are types of computer memory, the basic difference between ROM and RAM is that RAM is used to make your device run more smoothly while the pre-written ROM is what makes it run in the first place.