Which technology is commonly used in consumer digital cameras?

• A. CMOS
• B. CCD
• C. PSP
• D. PMT

Answer: (A)

The main idea here is how consumer digital cameras capture light. Imaging sensors are the core, and the technology behind them determines cost, power use, and how quickly a camera can process images. CMOS sensors are now the typical choice in most consumer cameras because they can be manufactured cheaply at scale, consume far less power, and allow a lot of processing to be built directly on the same chip. This leads to smaller, lighter cameras with longer battery life and faster performance, including better video capabilities. Advances in CMOS design have narrowed the traditional image-quality gap with the older CCD sensors, making CMOS the standard for mainstream cameras. Technologies like photomultiplier tubes are specialized scientific detectors, not used in consumer imaging, and PSP refers to a gaming device rather than a sensor technology, so they aren’t relevant choices for how consumer cameras sense light.