What is the difference between ram and rom in computer
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Your search did not match any active Crucial part numbers or configuration IDs. Find articles and site content Enter keywords. ROM stores all the application which is needed to boot the computer initially. It only allows for reading. In order to access ROM information first, the information is transferred into the RAM, and then it can be executed by the processor.
The ROM memory allows the user to read the information. Its speed is slower in comparison with RAM. Read-only memory ROM is a type of storage medium that permanently stores data on personal computers PCs and other electronic devices.
The advantages of SRAM include low power consumption and faster access speeds. Disadvantages include less memory capacities and high costs of manufacturing. ROM, or ready-only memory, is a non-volatile storage medium that permanently stores data and does not need constant power to retain the data on the device. ROM is often used during the startup process of computer, and is used for software code and data that will not be changed, such as in embedded control programs. PROM, or programmable read-only memory, can be programmed by the user once after creation.
Therefore, the information programmed is permanent and cannot be erased. Users would need to replace the entire chip if new code or data is needed. EPROM, or erasable programmable read-only memory, can be erased and programmed by exposing the chip to ultra-violet light. To reprogram the device, it is necessary to erase all the previous data then rewrite the data.
EEPROM, or electrically erasable programmable read-only memory, is a memory that can be erased and programmed using electrical charge. It is possible to erase selected portions of the chip one byte as a time, instead of needing to erase the entire chip. Video Explaining the Differences Differences in use RAM allows the computer to read data quickly and efficiently to be able to run applications efficiently, whereas ROM stores the program required to initially boot the computer and perform diagnostics.
Follow Share Cite Authors. Related Comparisons. Contribute to Diffen Edit or create new comparisons in your area of expertise. Log in ». Terms of use Privacy policy. Random Access Memory or RAM is a form of data storage that can be accessed randomly at any time, in any order and from any physical location.