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KS3 - Data Rep 1

Year 8 - KS3 - Data Representation

TermDefinition
Binary Number system in base 2 that computers use to represent data and instructions
Denary The numbers 1-10 (Our numbers)
ASCII A relatively simple character set that can represent 128 different characters
Pixel The smallest element of a bitmap image, normally arranged in a two-dimensional grid
Resolution Word used to describe the detail of a digital image
Conversion Changing from binary to denary or vice-versa
Data Representation How data is stored and understood by the computer
Logic The use of Boolean calculations to determine a particular output as true or false
NOT gate The logical operator to reverse an input
AND gate The logical operator to require 2 true inputs for a true output
OR gate The logical operator to require either input to be true for a true output
Truth Table A table to show all the inputs and possible outputs of a logic gate or circuir
File size A downside of storing better quality images/audio is that this attribute will be larger
Metadata Information about the image data that allows a computer to recreate the image from binary
Data Raw, unorganised numbers and facts
Information Data with context.
Bit The logical operator to reverse an input
Byte The logical operator to require 2 true inputs for a true output
Kilobyte Binary unit consisting of 1,024 bytes
Megabyte Binary unit consisting of 1,024 kilobytes
Gigagbyte Binary unit consisting of 1,024 megabytes
Created by: weirdog
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