one of the bbiggest confusion of computer student

hope this article helps you a lot. The key difference between RAM and ROM is that RAM is basically a read-write memory whereas, ROM is a read only memory. RAM temporarily stores the data that have to be processed by CPU currently. On the other hands, ROM stores the instructions that are required during Bootstrap. RAM is a volatile memory. However, ROM is a nonvolatile memory. RAM stands for Random Access Memory whereas, ROM stands for Read Only Memory. On the one hand, where the data in RAM can be modified easily, the data in ROM can be hardly or never be modified. The RAM can range from 64 MB to 4 GB whereas, the ROM is always comparatively smaller than RAM. RAM is costlier than ROM. RAM can be classified into static and Dynamic RAM. On the other hands, ROM can be classified into PROM, EPROM and EEPROM.