Associated Locksmiths of America (ALOA) Practice Test 2025 - Free Locksmith Practice Questions and Study Guide

In locksmithing, PROM stands for Programmable Read Only Memory. This term refers to a type of memory that is used in electronic locks and security systems. PROM is a storage medium that allows data to be written to it once, and thereafter, the data remains fixed and can be read without the possibility of modification.

This feature is crucial in lock systems where firmware or certain operational parameters need to be securely stored without the risk of accidental overwriting. By utilizing PROM, locksmiths can ensure that the programming needed for the functionality of a lock is both reliable and permanent, which is particularly important in security applications. The ability to program the memory once and then secure it against changes provides an added layer of security and integrity in electronic locking systems.

Other options, while they incorporate some familiar terms, do not represent a recognized term used in locksmithing, making them less relevant in this context.