Final answer:
Computed radiography uses a digital sensor, allowing for active readout of the charge stored in the capacitor and greater exposure latitude. Conventional film-screen radiography uses a film that requires chemical processing to produce a visible image.
Step-by-step explanation:
The major difference between computed radiography and conventional film-screen radiography is that computed radiography uses a digital sensor to capture the X-ray image, while conventional film-screen radiography uses a film to capture the image. The digital sensor in computed radiography allows for active readout of the charge stored in the capacitor, which provides greater exposure latitude and flexibility in adjusting the image. In contrast, conventional film-screen radiography relies on the exposure of the film to X-ray photons, which are emitted as invisible radiation and require chemical processing to produce a visible image.