Difference Between RAM vs ROM
Today’s article will show you the difference between RAM and ROM. Many people get confused about these aspects of computing, but once you know how they work, everything becomes much clearer.
We will give you the definition for each type and a table that breaks down their key variations in a very easy-to-understand format. By the end of the post, you will know exactly how these memory varieties function.
Definition of RAM
The definition of RAM is a data-sharing memory format used in computing where data is accessible on demand. Data stored using RAM is not permanent. To effectively summarize the key components that separate RAM vs ROM, we simply need to draw on the individual processes used to access data with either type of memory storage and also the permanence of that data.
RAM is not permanent memory. It is used to accommodate the ongoing use of a computer while it is turned on and active. It allows data to be transferred and accessed in real time. The abbreviation RAM actually stands for random-access memory.
The reason why it is named this is that a computer quite literally uses RAM purely as and when needed in a very sporadic fashion while the user is engaging with the system. Every time you click a button, perform an internet search, or interact with a program, you are directly using computer memory (RAM) at random in order to be able to perform those functions.
Once the system is in an “off” or shut-down state, the data and memory associated with the actions that you have been performing are erased. In summary, this type of data storage process is designed to allow short-term, ongoing use while a connection is present.
Definition of ROM
The definition of ROM is a memory system for computers designed for the permanent storage of information or data. When summarizing the difference between ROM and RAM using their definitions, it is already quite clear where the main variation lies due to the inclusion of the word permanent as part of the description of the former. ROM is not designed to be erased.
Whereas RAM is a temporary transfer of data intended to allow you to use a computer in the moment, ROM is made to allow you to keep any important information once usage has ceased.
Examples of ROM in action would be video game cartridges and the BIOS on certain computers. BIOS is a type of firmware on computers that provides instructions for the hardware before an operating system is loaded. Computers that use ROM for their BIOS do not require any changes to the BIOS. Likewise, there is no need to change video games stored on ROM video game cartridges.
It is important to remember that ROM has some disadvantages compared to other storage types. While information on a hard drive or solid-state drive can be changed if needed, information stored on ROM is not meant to be updated. For this reason, code on ROM is more often written by manufacturers than consumers.
For a strong visual summary, you could view RAM as being a temporary vehicle designed for data transportation and ROM as being a permanent destination for keeping data. They are both forms of data storage, but the processes interact very differently with your computer system.
Main Differences Between RAM vs ROM
We will now outline the variations between ROM vs RAM below.
| Basis of Comparison | RAM | ROM |
| Stands for | Random-access memory | Read-only memory |
| Used for | Performing non-permanent activities at random that rely on data exchange | Storing data permanently |
| Is data permanent? | No | Yes |
| Who typically writes the data? | Consumers | Manufacturers |
| How does it store data? | Requires power and an active electrical connection | Does not require power or an active connection |
| Examples | Performing an internet search, sending an email, writing a social media message | Video game cartridges and BIOS on certain computers |
Difference Between RAM and ROM: Conclusion
It might have seemed a little confusing at first, but you should now finally be able to summarize these two memory types effectively. Remember that in summary, RAM exchanges temporary information, and ROM stores permanent information. This is the focal variation between them.
