Edexcel GCSE Computer Science

3.3.4: understand that file storage is measured in bytes and be able to calculate file sizes

Keywords:

Data

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

Keyword	Definition
Bit	single 0 or 1. Can stored using electrical On/Off signals or magnetic (North / South) polarity
Byte	8 bits
File size	the number of bytes used to store a file
Gb	1024 Mb (1024 x 1024 x 1024 bytes)
Image size	bytes = (width x height x bits per pixel) / 8
Kb	1024 bytes
Mb	1024 Kb (1024 x 1024 bytes)
Sound size	bytes = (sampling frequency (Hz) x resolution (bits) x length (seconds)) / 8
Tb	1024 Gb (1024 x 1024 x 1024 x 1024 bytes)

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: