Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

Multiple Choice

What is the name of the random-accessed semiconductor memory IC that must be refreshed periodically to maintain reliable data storage in its memory matrix?

Dynamic RAM stores each bit as charge on a tiny capacitor, and those capacitors gradually lose charge over time. To keep the data intact, the memory controller must refresh the stored charges in periodic cycles, restoring the bit values before they decay. This refreshing requirement is what characterizes DRAM as a volatile, refresh-needed memory type. ROM and PROM are non-volatile and don’t require refreshing, while PRAM refers to a different technology. So the memory type that must be refreshed to maintain data is DRAM.

Dynamic RAM stores each bit as charge on a tiny capacitor, and those capacitors gradually lose charge over time. To keep the data intact, the memory controller must refresh the stored charges in periodic cycles, restoring the bit values before they decay. This refreshing requirement is what characterizes DRAM as a volatile, refresh-needed memory type. ROM and PROM are non-volatile and don’t require refreshing, while PRAM refers to a different technology. So the memory type that must be refreshed to maintain data is DRAM.