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Compare Ram and ROM

written 7.6 years ago by manish090801 • 0

•   modified 7.3 years ago

Subject :- VLSI Design

Topic :- Semiconductor Memories

Difficulty :- High

vlsi design

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written 7.3 years ago by manish090801 • 0

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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