COMPUTER FUNDAMENTALS

Detailed explanation-1: -The two main types of primary storage are ROM, which is non-volatile, and RAM, which is volatile . Non-volatile memory keeps its contents even when the computer is switched off. Volatile memory loses its contents when power is lost.

Detailed explanation-2: -Unlike RAM, Read Only Memory (ROM) delivers both non-volatile and permanent primary storage. ROM retains its contents even if the device loses power. You cannot change the data on it, you can only read it. ROM is a more reliable form of storage, and it will often boot instructions and other mission-critical data.

Detailed explanation-3: -ROMs are of five types: MROM (masked read only memory), PROM (programmable read only memory), EPROM (erasable programmable read only memory), EEPROM (electrically erasable programmable read only memory), and Flash Memory.

Detailed explanation-4: -Computer memory is of two basic type – Primary memory(RAM and ROM) and Secondary memory(hard drive, CD, etc.). Random Access Memory (RAM) is primary-volatile memory and Read Only Memory (ROM) is primary-non-volatile memory. It is also called as read write memory or the main memory or the primary memory.

Detailed explanation-5: -ROM is often primary memory because that’s where the boot code is stored, and accessing secondary memory requires some code to run, so that can’t be done until the boot code has run.