Where is the BIOS in a standard PC typically stored?

The BIOS, or Basic Input/Output System, is typically stored in ROM (Read-Only Memory). This is a non-volatile memory that retains information even when the computer is turned off. ROM is specifically designed to hold firmware, such as the BIOS, which initializes and tests the system hardware during the booting process and provides runtime services for operating systems and programs.

In contrast, RAM (Random Access Memory) is volatile memory, meaning it loses its content when the power is turned off. The hard drive is used for long-term data storage, while cache memory is a small amount of extremely fast memory located closer to the CPU for speeding up access to frequently used data. Therefore, the correct choice regarding where the BIOS is typically stored is ROM.