Explanation:

Answer: (df) ROM

ROM is the permanent memory built into your computer called.

There are some programs and instructions which the computer will always need. Read only memory (ROM) is the permanent memory which is used to store these important control programs and systems software to perform a variety of functions, such as booting up or starting up programs. ROM is non-volatile.

Data in RAM is not permanently written. When you power off your computer the data stored in RAM is deleted. ROM is a type of non- volatile memory. Data in ROM is permanently written and is not erased when you power off your computer.

Short for Read-Only Memory, ROM is a storage medium that is used with computers and other electronic devices. As the name indicates, data stored in ROM may only be read. It is either modified with extreme difficulty or not at all. ROM is mostly used for firmware updates.

ROM are very small in memory size. These memory is non-volatile, in the sense, the program stored in ROM don't get erased with power shut down. ROM are used to store permanent programs, which are very essential your hardware to perform correctly. A typical example of ROM is BIOS chip.

The permanent memory that is built in your computer. This is read only. The computer's working memory, sometimes called random-accessed memory. The hardware that is used to pass information into the computer.