Data Representation
Binary, text, images and sound: how computers store everything.
01Binary NumbersCount in base 2 and convert between binary and denary.Read lesson →02Text and CharactersSee how ASCII and Unicode turn letters into numbers.Read lesson →03Images and PixelsDiscover how grids of coloured dots become photographs.Read lesson →04Sound and SamplingLearn how sound waves are sampled into digital audio.Read lesson →