Y9

4r: Define 'compression', and describe why it is necessary

Keywords:

Data Representation

Test your self on these keywords and definitions using the games below or Play random game

Keyword	Definition
compression	reducing the number of bits required to represent data (such as sound or images)
lossless compression	an algorithm that can reduce the number of bits required to represent sound or images without any reduction of quality
lossy compression	an algorithm that can significantly reduce the number of bits required to represent sound or images by reducing the quality in a way that can't be reversed

All learning objectives

Keyword games:

BugZap

Connect the wires to complete the circuit and zap the bug. The faster you choose the right keyword, the more points you get for zapping the bug!

Crossword

Use the clues to guess the keywords and fill in the blank spaces on the crossword

Eliminate

Click on the keywords that do not match the definition

Flappy Word

Click to jump. Collect a letter each time you pass a pipe

Hangman Definitions

Guess the letters of the definition

Hangman Keywords

Guess the letters of the keyword

Jumble Keyword

Rearrange the letters of the keyword into the right order

Random

Choose a game at random

Snake

Control the snake to eat each letter of the keyword in order

TypeRace

Type out the definitions as fast as you can

Wordsearch

Find the words that match each definition

Play Random Game

Resources: