Be careful not to accidentally use the same code for two different Key Stage 4 letters. In this example £ has been coded to 11101. Colour Coded – Part I A J S B K T C L U D M V Student worksheet E N W F O X G P Y H Q Z Sending data I R £ Much of our life involves receiving and transmitting data (e.g., Using the code write a three letter word here and give it to someone watching TV, posting on social media, sending emails). Although we else to decode: might want to receive something complicated like sound and moving images, in order to process and send the information it is converted to Coded Word an extremely basic code. That code consists of only two options, Decoded Word usually written as 1 and 0. This is often referred to as binary or digital. Key Stage 4 Once a complicated signal like a picture or sound recording has been converted to a binary code, the code can then be Colour Coded – Part II transmitted using pulses of light in fibre optic cables. These are special cables containing long strands of glass fibres that are Scientists at the University of Oxford are looking for a way to be able designed to allow light to travel down them. to give pulses of light more than two different properties. This would The pulses of light are either ON or OFF (corresponding to 1 or 0 in be like having lots of different colours to create the code rather than At the other end the code is decoded again back binary code). just black or white. into sound and pictures. Try creating a colourful code using the colours Red(R), Orange(O), Yellow(Y), Green (G), Purple(P), Blue(B), Black (Bk) & White/Blank(W). Creating your own binary code Use the letters if you don’t have enough coloured pens! Have a go at creating your own binary code for each letter of the Create your code below: alphabet. Create a code by shading (1) or not shading (0) the boxes.
Key Stage 4 Colour Coded – Part I Student worksheet Sending data Much of our life involves receiving and transmitting data (e.g., watching TV, posting on social media, sending emails). Although we might want to receive something complicated like sound and moving images, in order to process and send the information it is converted to an extremely basic code. That code consists of only two options, usually written as 1 and 0. This is often referred to as binary or digital. Once a complicated signal like a picture or sound recording has been converted to a binary code, the code can then be transmitted using pulses of light in fibre optic cables. These are special cables containing long strands of glass fibres that are designed to allow light to travel down them. The pulses of light are either ON or OFF (corresponding to 1 or 0 in binary code). At the other end the code is decoded again back into sound and pictures. Creating your own binary code Have a go at creating your own binary code for each letter of the alphabet. Create a code by shading (1) or not shading (0) the boxes. Be careful not to accidentally use the same code for two different letters. In this example £ has been coded to 11101. A J S B K T C L U D M V E N W F O X G P Y H Q Z I R £ Using the code write a three letter word here and give it to someone else to decode: Coded Word Decoded Word Key Stage 4 Colour Coded – Part II Scientists at the University of Oxford are looking for a way to be able to give pulses of light more than two different properties. This would be like having lots of different colours to create the code rather than just black or white. Try creating a colourful code using the colours Red(R), Orange(O), Yellow(Y), Green (G), Purple(P), Blue(B), Black (Bk) & White/Blank(W). Use the letters if you don’t have enough coloured pens! Create your code below: