FUNDAMENTALS OF COMPUTER

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: -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-4: -ROM: Read Only Memory. ROM is also a primary memory just like RAM, but unlike RAM, ROM is able to store data permanently which makes it non-volatile. It is a programmable chip that stores all the most important instructions required to start the system, this process is also known as bootstrap.

Detailed explanation-5: -Secondary memory consists of all permanent or persistent storage devices, such as read-only memory (ROM), flash drives, hard disk drives (HDD), magnetic tapes and other types of internal/external storage media.