Use this generator to test your binary conversion skills.

**Extension:** *try coding adenary to binary converter yourself – stuck? Click the button to see how we wrote this one!*

```
function refreshBinary() {
```

var Dec = Math.floor(Math.random() * 255);

document.getElementById("Binary").innerHTML = Dec;

}

function checkBinary() {

var Dec = document.getElementById("Binary").innerHTML;

var MSB = 128;

var Bin = "";

while (MSB >=1){

if (Dec >= MSB) {

Bin = Bin + "1";

Dec = Dec - MSB;

}

else{

Bin = Bin + "0";

}

MSB = MSB / 2;

}

document.getElementById("Denary").innerHTML = Bin;

Why do computers represent numbers using binary?

**Key Words**

Bit, Nibble, Byte, Denary, Binary, Base, Base 2, Base 10 – **make flash cards for these**

Describe how you would convert from binary to denary.

What is the difference between the most significant bit and the least significant bit?

.

Match the term to the definition:

Base | A base 2 number system where only the digits 0 & 1 are used. | |

MSB | The number of unique digits within a number system. | |

Binary | Half a byte, or four bits. | |

Nibble | The largest number column in a binary number. In a byte, this is 128. |

.

Why are powers of 2 used in binary?

.

*What does 1 & 2 represent in a computer system?*

.

Complete & explain your answer to the following exam question:

The Binary Numbers Scribbl.it Notes provide a structured way for you to revise topic areas in a visual way. You don’t have to be an artist as it’s all been drawn out for you (or you can use this as inspiration to create your own!). Print the notes, then colour in areas of importance, add doodles and colour, then add more detail to the notes page being as creative as possible.

There are known benefits to using Scribbl.it Notes (whether structured like these, or independently created):

- Increased Attention
- Reduction of stress levels
- Increased memory for content
- Deeper learning

*Scroll to the bottom to download*

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