Understand how and why computers use binary to represent all forms of data

Text is converted to binary to be processed by a computer. Unicode allows for a greater range of characters and symbols than ASCII, including different languages and emojis. Unicode requires more bits per character than ASCII. A sound wave is sampled for sound to be converted to binary, which is processed by a computer. The sample rate is the number of samples taken in a second. The sample resolution is the number of bits per sample. The accuracy of the recording and the file size increases as the sample rate and resolution increase. An image is a series of pixels that are converted to binary, which is processed by a computer. The resolution is the number of pixels in the image. The colour depth is the number of bits used to represent each colour. The file size and quality of the image increase as the resolution and colour depth increase.