What is true about read only memory?

Answer 1

The advantages of read only memory are its permanence and security. However, the only disadvantage is that a system will require more time as twice in reading the data stored in ROM than in RAM.

Answer 2

There are two main reasons that read-only memory is used for certain functions within the PC:

• Permanence: The values stored in ROM are always there, whether the power is on or not. A ROM can be removed from the PC, stored for an indefinite period of time, and then replaced, and the data it contains will still be there. For this reason, it is called non-volatile storage. A hard disk is also non-volatile, for the same reason, but regular RAM is not.
• Security: The fact that ROM cannot easily be modified provides a measure of security against accidental (or malicious) changes to its contents. You are not going to find viruses infecting true ROMs, for example; it's just not possible. (It's technically possible with erasable EPROMs, though in practice never seen.)

Answer 3

The purpose of the read-only memory is to store data that cannot be erased - usually at a slow speed. Things like the video game cartridges are usually stored in the ROM.

Answer 4

FLEXABLE