Compare Ram and ROM

Subject :- VLSI Design

Topic :- Semiconductor Memories

Difficulty :- High

1 Answer
Basis of Comparison RAM ROM
Basic It is a read-write memory. It is read only memory.
Definition 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, allowing quick access and manipulation. Read-only memory or ROM is also a form of data storage that cannot be easily altered or reprogrammed. It stores instructions that are not necessary for re-booting up to make the computer operate when it is switched off. They are hardwired.
Use Used to store the data that has to be currently processed by CPU temporarily. It stores the instructions required during bootstrap of the computer.
Volatility RAM is a type of volatile memory, meaning the stored data is lost when powering off. ROM is a type of non-volatile memory, meaning that the data will not be lost when power is removed.
Stands for Random Access Memory Read Only Memory
Modification Data in ROM can be modified. Data in ROM cannot be modified.
Storage Temporary storage. Permanent storage.
Capacity RAM sizes from 64 MB to 4GB. ROM is comparatively smaller than RAM.
Cost RAM is costlier memory. ROM is comparatively cheaper than RAM
Type Types of RAM are Static RAM and dynamic RAM. Types of ROM are PROM, EPROM and EEPROM.
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