Which memory is Read-Only Memory?

Which memory is Read-Only Memory?

• A. ROM
• B. RAM
• C. CPU
• D. Data

Answer: (A)

The main idea here is distinguishing memory types by how they are used and whether they keep data without power. Read-Only Memory is ROM, which stands for Read-Only Memory. It is non-volatile, meaning it retains its contents even when the computer is turned off, and it is intended to be read by the system rather than continuously written to during normal operation. This is why firmware or boot instructions live in ROM. While there are writable variants (PROM, EPROM, EEPROM), they’re not used for regular day-to-day writing like RAM, and the core concept of ROM is that it’s primarily read-only. RAM, on the other hand, is volatile memory used for temporary data and loses everything when power is removed. The CPU is the processor, not memory, and Data is a general term, not a specific memory type. So ROM is the memory that fits the description of Read-Only Memory.

The main idea here is distinguishing memory types by how they are used and whether they keep data without power. Read-Only Memory is ROM, which stands for Read-Only Memory. It is non-volatile, meaning it retains its contents even when the computer is turned off, and it is intended to be read by the system rather than continuously written to during normal operation. This is why firmware or boot instructions live in ROM. While there are writable variants (PROM, EPROM, EEPROM), they’re not used for regular day-to-day writing like RAM, and the core concept of ROM is that it’s primarily read-only. RAM, on the other hand, is volatile memory used for temporary data and loses everything when power is removed. The CPU is the processor, not memory, and Data is a general term, not a specific memory type. So ROM is the memory that fits the description of Read-Only Memory.