Which of the following is NOT a type of expansion slot or bus design used in Advanced-Technology class systems?

The correct answer is C. PROM.

• PCMCIA (Personal Computer Memory Card International Association) is a standard for thin, credit-card-sized expansion cards used in laptops.
• ISA (Industry Standard Architecture) is a 16-bit expansion bus standard for IBM PC compatible computers.
• EISA (Extended Industry Standard Architecture) is an 32-bit expansion bus standard for IBM PC compatible computers.
• PROM (Programmable Read-Only Memory) is a type of non-volatile memory that can be programmed once and then read many times.

PROM is not a type of expansion slot or bus design used in Advanced-Technology class systems.