binary - A way of representing information using only two numbers: 0 and 1., BIT - The smallest piece of information in a computer, which can be 0 or 1., BYTE - A group of 8 bits used to store data like letters or colours., Data - Information that a computer can process, such as text, pictures, or sounds., sound  - Vibrations that travel through the air and can be heard; stored as digital data in computers., Image - A picture stored on a computer as data made up of tiny dots called pixels., Electricity - The flow of energy that powers computers and allows them to send signals., Compression - Making a file smaller to save space., Decompression - Expanding a compressed file back to its original size., Lossy - A type of compression that removes some data to make files smaller, reducing quality., Lossless - A type of compression that keeps all the data, so no quality is lost., Hard Disk Drive - A device used to store data permanently in a computer., Optical Disk - A storage device like a CD or DVD where data is read and written using a laser., Bit Depth - The number of bits used to represent each colour or sound sample; more bits mean higher quality., Sample Rate - The number of times per second a sound is recorded to turn it into digital data; higher rates mean better quality., Encryption - Turning information into a secret code so only authorised people can read it., Decryption - Turning the secret code back into readable information.,

Data Representation - Definition

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