Difference between RAM and ROM and Hybrid

As the human brain store data or information in long term memory and the data is retrieved from the brain when needed. As now a day’s computer is trying to replacing human. So in computer there is a memory on which data is placed and is fetched from that memory when desired. There are three types of memories: RAM, ROM, and Hybrid.

RAM

RAM is abbreviation of Radom Access Memory. It was invented by Robert Dennard in 1968. It is type of memory on which data is stored for the time being and when the system is turn off all the data stored on RAM cease to exist. RAM is further divided into SRAM and DRAM. SRAM stocks the data on memory whereas DRAM stores data on cells.

ROM

ROM stands for Read Only Memory. It was invented by James Rusell in 1960’s. This is second type of memory in this type the data is stored for long time. And the data/information retain on ROM does not evaporates even when the power is turned off. It is further divided into EPROM, PROM and Masked ROM.

Hybrid

This type of memory is easily portable. Hybrid memory has three types NVRAM (Non Volatile Random Access Memory), flash (nonvolatile memory which can be wiped out and rewritten) and EEPROM (Electrically Erased Programmable Read Only Memory).

RAM VS ROM VS Hybrid

Storage:

RAM is volatile memory and the data is stored until the power is supplied to the system.

ROM is non-volatile memory and the data is stored for extensive period of time.

Hybrid Memory is non- volatile memory it can be erased and rewritten.

Usage:

RAM is used as a subordinate memory as it does not have any part in starting a computer/system but it is used for further working of system and for performing ordinary tasks.

ROM is treated as a crucial for starting the computer because it contains the files which are necessary to start the computer.

Hybrid Memory is used when the data is transferred from one place to another. This is highly preferable for portability.

Writing Speed:

The data lettering swiftness is high in RAM.

The information writing swiftness is slow in ROM.

The writing speed of hybrid is even high than RAM and ROM.

Storage Capacity:

The Storage Capacity of Random Access Memory is far sophisticated than Read Only Memory which is in Gigabytes.

Whereas the Storage Capacity of Read Only Memory (ROM) is less than Random Access Memory (RAM) this is in Megabytes.

Its Storage capacity ranges from Megabytes to Gigabytes.

Chip size:

RAM chip is greater in size.

ROM chip is comparatively smaller in size than RAM.

The size of Hybrid Memory is abundant less than RAM and ROM.

Examples:

Example of RAM (Random Access Memory) is as follows:

Web Searching is an example of RAM because all the related information is stored on RAM and is removed when the system is turned off.

 Example of ROM (Read Only Memory) is as follows:

It includes Basic Input Output System. It loads all the drivers because they are stored in the stable memory.

Example of Hybrid is as follows:

Examples of Hybrid Memory include Flash, NVRAM and EEPROM.

Conclusion:

RAM is volatile and the temporary files are stored in this type of memory. ROM is used when the data is stored for long time and can be retrieved from that memory whenever needed. And Hybrid is preferred when data is transferred from one place to another.