Computers work in (a)   . As a result, all characters, whether they are letters, punctuation or digits are stored as binary numbers. All of the characters that a computer can use are called a (b)   .
Two standard ​ (c)   sets in common use are:
American Standard Code for Information Interchange ( (d)   ) & (e)  

Image quality is affected by the (a)   of the image. The resolution of an image is a way of describing how tightly packed the (b)   are.

In a low-resolution image, the are larger and therefore, fewer are needed to fill the space. This results in images that look blocky or (c)   . An image with a high resolution has more pixels, so it looks a lot better when it is enlarged or stretched. The higher the resolution of an ​ (d)   , the larger its (e)   will be.

(a)   refers to the number of (b)   used to record each sample. Just as with images, the higher the bit depth, the more accurately a sound can be recorded, but the larger the file size. Typical bit depths are (c)   and .
(d)   is simply a measure of how much data is processed for each second of sound.
Bit rate = ​ (e)   rate x bit depth. As with sample rate, the higher the bit rate, the better quality of the recorded sound.