What an earlier transistor could change

What if the transistor had been invented ten years earlier?

Radar, radios, and communications could improve rapidly; computers would still lag because their development required more than improved components.

Britain and the United States would be expected to benefit most because they already possessed relevant industrial and research capacity. Transistors could replace valves in radar, radio, and other electronic equipment. That change would improve reliability and capability during World War II. Computers would develop more slowly because their progress also depended on mathematical and systems work that an earlier component could not supply by itself.