Which statement best describes Moore's Law's relevance to future hardware trends?

• A. Software optimization will drive all improvements.
• B. Transistor density will stop increasing.
• C. Hardware gains come from specialized accelerators alone.
• D. Device capabilities are expected to grow primarily due to increased transistor density.

Answer: (D)

Moore's Law is about transistor density on a chip increasing over time, which allows more transistors to be packed into the same area and enables greater computational capability, memory, and features. Because of that density growth, device capabilities are expected to rise mainly due to having more transistors available. This makes the statement that hardware gains will come primarily from increased transistor density the best description of Moore's Law's relevance to future hardware trends.

Software optimization and specialized accelerators can enhance performance, but Moore's Law describes the underlying hardware trend—more transistors leading to bigger, more capable chips. The idea that transistor density will stop increasing contradicts Moore's Law, and the notion that improvements come only from accelerators ignores the central role of transistor density in enabling hardware growth.