Discuss Differences Between RAM and ROM

We have already discussed the topics:
1. RAM and Types of RAM
2. ROM and Types of ROM
Here we discuss differences between RAM and ROM

Sr #	RAM	ROM
1	RAM stands for Random Access Memory	ROM stands for Read Only Memory.
2	RAM is a temporary memory.	ROM is a permanent memory.
3	RAM is a volatile memory.	ROM is a non volatile memory.
4	When computer is turned off, all data and programs are erased from RAM.	When computer is turned off, all data and programs are retained in ROM.
5	RAM is a Read / Write memory. Data can be read and written to RAM.	ROM is a read only memory. Data from ROM only can be read and not written.
6	Data and programs in RAM can be changed.	The contents of ROM cannot be changed.
7	Data or programs in RAM can be deleted.	Contents of ROM cannot be deleted.
8	The instructions and data  are written (loaded) in RAM at execution time, when computer is working.	The instructions in ROM are written at the time of manufacturing.
9	RAM is used to load data and programs currently running.	ROM contains the instructions that help the computer to start-up and make it ready for work.
10	RAM is much faster than ROM.	ROM is slower than RAM.
11	RAM has two main types: Static RAM and Dynamic RAM	ROM has three types: PROM, EPROM and EEPROM
12	Physically RAM chip is larger than ROM chip.	Physically ROM chip is smaller than RAM chip.
13	Picture of RAM is: RAM	Picture of ROM is: ROM