Edexcel GCSE Computer Science 2020

2.1.3: be able to convert between denary and 8-bit binary numbers (0 - 255, -127 - 128)

Keywords:

Data

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

Keyword	Definition
binary	way of representing data used by computers (base 2)
bit	single one or zero
bit value	the amount each bit is worth when working out a binary number
byte	combination of 8 ones or zeros
denary	way of representing numbers used by most humans (base 10)
two's complement binary	way of representing positive or negative numbers where the most significant bit for an 8 bit value is worth -128
unsigned binary	way of representing numbers so that the least significant bit on the right is worth 1 then each bit doubles in value as you move to the left

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:

Binary

Binary Challenge

CnD Binary Denary 8 bit