Investigate how digital systems represent text, image and audio data in binaryElaborationsexplaining that characters in text correspond to numbers defined by the character set, for example ‘A’ corresponds to 65 in the ASCII and Unicode character sets (Skills: Literacy, Information and Communicat...
Investigate how digital systems represent text, image and audio data in binary
Elaborations
explaining that characters in text correspond to numbers defined by the character set, for example ‘A’ corresponds to 65 in the ASCII and Unicode character sets (Skills: Literacy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking)
recognising that Unicode attempts to represent the written symbols of every language; and using Unicode charts to look up characters from Asian writing systems (Skills: Literacy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking, Intercultural Understanding)
investigating the different representation of bitmap and vector graphics and its consequences, for example pixelation in magnified bitmap and vector images (Skills: Literacy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking)
investigating how colours are represented in images and videos, for example manipulating red, green and blue (RGB) colours in an image editor (Skills: Literacy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking)
converting between decimal and 8-bit (1 byte) unsigned binary, covering whole numbers typically used for characters and RGB, for example 65 in decimal is 01000001 in 8-bit binary (Skills: Numeracy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking)
explaining ways media elements are presented, for example the difference between embedded and linked media elements (Skills: Literacy, Information and Communication Technology (ICT) Capability, Critical and Creative Thinking)
