R Programming
R Simple, Multiple Linear and Stepwise Regression [with Example]
In this tutorial, you will learn Simple Linear regression Multiple Linear regression Continuous...
The full form of RAM is Random Access Memory. The information stored in this type of memory is lost when the power supply to the PC or laptop is switched off. The information stored in RAM can be checked with the help of BIOS. It is generally known as the main memory, or temporary memory or cache memory or volatile memory of the computer system.
In this RAM vs. ROM tutorial, you will learn:
The full form of ROM is a Read-Only Memory. It is a permanent type of memory. Its content are not lost when the power supply is switched off. The computer manufacturer decides the information of ROM, and it is permanently stored at the time of manufacturing, which cannot be overwritten by the user.
Here, are some essential characteristics of RAM: the volatile memory
Here, are some important characteristics of ROM memory
Here are types of RAM:
Here are important types of ROM memory.
Parameters | RAM | ROM |
---|---|---|
Usage | RAM allows the computer to read data quickly to run applications. | ROM stores all the application which is needed to boot the computer initially. It only allows for reading. |
Volatility | RAM is volatile. So, its contents are lost when the device is powered off. | It is non-volatile, i.e., its contents are retained even if the device is powered off |
Accessibility | Information stored in the RAM is easily accessed. | The processor can't directly access the information that is stored in the ROM. In order to access ROM information first, the information is transferred into the RAM, and then it can be executed by the processor. |
Read/Write | Both R (read) and W (write) operations can be performed over the information which is stored in the RAM. | The ROM memory allows the user to read the information. But, the user can't alter the information. |
Storage | RAM is used to store temporary information. | ROM memory is used to store permanent information, which is non-erasable. |
Speed | The access speed of RAM is faster. | Its speed is slower in comparison with RAM. Therefore, ROM can't boost up the processor speed. |
Cost | The price of RAM is quite high. | The price of ROM is comparatively low. |
Chip size | Physical size of RAM chip is bigger than ROM chip. | Physical size of ROM chip is smaller than the RAM chip of same storage capacity. |
Preservation of Data | Electricity is needed in RAM to flow and to preserve information | Electricity is not required to flow and preserving information |
Structure | The RAM chip is in rectangle form and is inserted over the motherboard of the computer. | Read-only memory (ROM) is a type of storage medium that permanently stores data on personal computers (PCs) and other electronic devices. |
Here, are some important advantages of using RAM
Here, are some important advantages of using ROM
Here, is a comparison between a various storage device
Storage | Speed | Cost | Capacity | Permanent |
---|---|---|---|---|
Register | Fastest | Highest | Lowest | No |
Hard Disk | Moderate | Very Low | Very High | Yes |
RAM | Very fast | High | Low to Moderate | No |
ROM | Very Fast | High | Very Low | Yes |
CD-ROM | Moderate | Very Low | High | Yes |
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