Problemas
Objectives: Q1. Explain how sound cards process sound. Q2. Compare and contrast traditional and digital cameras. Q3. Explain how cameras and phones are used to take pictures and transfer files. Q4. Identify files formats used to save scanned content.
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Q1. Sound cards process sound by converting analog signals into digital signals that the computer can understand. They use a codec to encode or decode audio data. The sound card receives the analog audio signal from an external source, such as a microphone or speakers, and converts it into a digital signal. This digital signal is then sent to the computer's memory or directly to the sound output device, such as speakers or headphones.Q2. Traditional cameras use film to capture images, while digital cameras use electronic sensors to capture images. Traditional cameras require film to be developed in a darkroom, while digital cameras can instantly preview and edit images on a screen. Digital cameras also have the advantage of being able to store thousands of images on a memory card, while traditional cameras can only hold a few rolls of film.Q3. Cameras and phones are used to take pictures by capturing light through a lens and focusing it onto a sensor. The sensor then converts the light into an electrical signal, which is processed by the camera's processor to create a digital image. The image can then be transferred to a computer or another device via a connection such as USB or Bluetooth. Phones use a similar process, but the image is stored on the phone's internal memory or on a memory card.Q4. Files formats used to save scanned content include JPEG, PNG, and PDF. JPEG is a commonly used format for storing and transmitting photographic images. PNG is a raster graphics format that supports lossless data compression. PDF is a document format that can include images, text, and other elements.