RAM Vs ROM can get quite confusing to people who are not exactly ‘tech-savvy.’ However, do not fret, as both are simple to distinguish and can easily be understood. To start with, both have something to do with computer memory. But what are the similarities? What are their applications, and how best to use them? You will find answers to all and more. Read on:
Contents
What is RAM? RAM Vs ROM in Computer
RAM is the acronym for Random Access Memory and is as temporary as it can get. All RAM is lost once the power to the system turns off. However, all is not lost, and the information can easily be revived with the help of BIOS. Interestingly, RAM is also known as ‘Cache memory,’ ‘Volatile memory,’ or the Main Memory.
Features of RAM: What is the Need for RAM? How Does it Differ From ROM?
These find wide applications in starting and loading the OS and other applications.
- It is quicker to read and write from.
- All DATA in RAM is retained until the system is running.
- Can store multiple gigabytes of data (GB)
- It is normal for a 32 bit PC to have 4 GB of RAM, and a 64 bit PC can have 16 exabytes of RAM.
Different Types of RAM:
The various types of RAM are:
- DRAM: Acronym for Dynamic RAM, it needs constant refreshing to retain the contents.
- SRAM: Acronym for Static RAM, requires less power but is on the pricier side. Nevertheless, no refreshing is required.
- SDRAM: Synchronous Dynamic RAM have high running clock speeds
- DDR: Acronym for Double Data Rate offers synchronous Random Access Memory.
What are the Advantages of RAM?
Let us take a look at the advantages of Random Access Memory:
- RAM is comparatively silent, as it does not comprise any movable parts.
- Which is better, RAM or ROM? When it comes to saving power, RAM is more power-efficient as compared to disk drives.
- Help save battery, thus, helps enhance the battery life.
What is ROM? RAM Vs ROM Difference
Also known as Read-Only Memory, ROM is the permanent one. This essentially means that the data and information stored will not be lost once the system switches off. This content is pre-decided by the manufacturers and is stored permanently at the time of manufacturing. It cannot be ‘edited’ in any way by the users.
Features of ROM: RAM Vs ROM Memory
- The data can be stored on ROM only once. But, this data can be read and re-read as many times as required.
- ROM is used for the start-up of the modern computer.
- The memory stored in ROM is limited in nature, amounting up to only a few megabytes.
Different Types of RAM:
- EPROM: This is also known as Erasable Programmable Read-only memory. Its main function is to store instruction. However, it can be erased by using UV light.
- PROM: The acronym for Programmable Read-Only Memory. The PROM is specifically created with the help of a special device.
- EEPROM: The acronym for Electrically Erasable Programmable Read-Only Memory. It is used to store and delete data for a special circuit.
- Mask ROM: The contents of MROM can be programmed using only the integrated circuit manufacturer.
Advantages of ROM:
Let us examine some of the major advantages of ROM:
- How is RAM different from ROM? Well, the memory is not lost in ROM. This is the reason it is called non-volatile memory.
- Cannot suffer any accidental changes.
- It is more economical as compared to RAM.
- It does not requires refreshing and is Static.
Also Read: Best Laptop Under 40000 in India 2021
Comparison between RAM and ROM
What are the differences between the two memories i.e RAM and ROM? Let us compare to find out in detail:
FEATURES | RAM | ROM |
Application | Helps read data quickly required for the spontaneous running of applications | It Helps store all the applications required for the instant start of the system. It is used only for reading. |
Volatility | Is volatile, contents are lost when the system turns off | Non-volatile can retain the contents even after the system is turned off. |
Access | how does ram differ from rom? Well, the Information stored can be easily accessed | The information cannot be easily accessed. |
Storage capacity | Can store temporary information and data. | Can store information permanently. |
Speed | RAM is speedier | Is slower in comparison |
Price | Is expensive | Is economic |
Chip Size | Is larger in comparison | Is smaller |
Read/Write | Can be used for both reading and write operations. | how is ram different from rom? Well, ROM can only allow the user to read the information. |
Similarities Between RAM and ROM
Now that we have taken a look at the differences, it is worth a while to take a look at some of the similarities between the two:
- Both are designed to retain information: this is done in the form of program instructions for specific data.
- Both are designed to be easily Accessible: RAM and ROM can identify specific memory cells or groups of cells that can be accessed at any time as required.
- Binary Digits: The information is stored in both the memory types in the form of Binary Digits. This is also known as ‘Bits.’
- Types: Both the memory types are available in various sub-categories. Thus, they can be accessed accordingly.
RAM Vs ROM: Conclusion
What is the difference between RAM and ROM? Well, we know now. However, one must understand the fact that both memory types have their applications. Now that you have the basics, it will be quite easier for a ‘commoner’ to enjoy the company of geeks! What’s more? You can also boast about a few tips and pointers of your own and impress all. Most times, RAM and ROM sound much like the names of certain ‘gods,’ but now we know that these are memory types that are vital for the functioning of a basic computer.