2.4-2.5 Digital Inforamation

Match the Terms with the Correct Definition

• Some data lost during compression

• Algorithm

• A step-by-step procedure for calculations

• Lossless

• Translates high-level code to machine code

• Lossy

• Set of characters recognized by a computer

• Compiler

• No data lost when compressed

• Character Set

Match the Terms with the Correct Definition

• The number of samples of audio carried per second

• variable

• A single point in a raster image

• sampling rate

• A numerical value that represents a specific character in a character set

• pixel

• Named storage location that holds value

• code point

• The number of bits used to represent each audio sample

• bit depth

What is RGB color model used for?

• Compressing audio files

• Mixing light to make colors in images

• Creating character sets for code

• Storing video resolution settings

Why is sound converted to binary?

• To store and manipulate it digitally

• To reduce internet speed

• To increase its natural quality

• To translate it into images

What is metadata used for?

• to store data about other data

• to delete unused files

• to play video and audio files

• to scan for computer viruses

What are cyan, magenta, and yellow used for in computer science and printing?

• They are screen display colors

• They are primary colors for pigment and printing

• They are used to program animations

• They are secondary colors in the RBC model

RGB is the color model used for mixing light on digital screens.

• True

• False

The CMY (cyan, magenta, and yellow) color model is used in printing.

• True

• False

Files with higher sampling rates usually have smaller sizes.

• True

• False

Lossy compression reduces file size without losing any data.

• True

• False