question_answer

What characteristic of read-only memory (ROM) makes it useful?                                                                                                  [Syndicate Bank Clerk 2010, Punjab & Sind 2010]

A)  ROM information can be easily updated

B)           Data in ROM is nonvolatile, that is, it remains there even without electrical power

C)           ROM provides very large amounts of inexpensive data storage

D)           ROM chips are easily swapped between different brands of computers

E)           None of these