1. What is RAM, Explain Different Types of RAM
2. What is ROM Explain Different 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:
| Picture of ROM is:
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