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Elaboration ACTDIK023

explaining that networks have components that control the movement of data, for example routers, hubs, switches and bridges manage data traffic and that the characteristics of these components impact on the operation (speed and security) of networks

Elaboration (1) ACTDIK023

explaining how cellular radio towers (transceivers) and mobile phones work together to create mobile networks

Elaboration (2) ACTDIK023

comparing the reliability and speed of transmitting data through wireless, wired and mobile networks

Elaboration (3) ACTDIK023

recognising that there are different communications protocols for transmitting data in networks, for example hypertext transfer protocol (HTTP) is used for transferring web page files in a browser, file transfer protocol (FTP) is used for sending and …

Elaboration ACTDIK024

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

Elaboration (1) ACTDIK024

recognising that Unicode attempts to represent the written symbols of every language; and using Unicode charts to look up characters from Asian writing systems

Elaboration (2) ACTDIK024

investigating the different representation of bitmap and vector graphics and its consequences, for example pixelation in magnified bitmap and vector images

Elaboration (3) ACTDIK024

investigating how colours are represented in images and videos, for example manipulating red, green and blue (RGB) colours in an image editor

Elaboration (4) ACTDIK024

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

Elaboration (5) ACTDIK024

explaining ways media elements are presented, for example the difference between embedded and linked media elements

Elaboration ACTDIP025

designing a search engine query to find specific information on the web and checking its accuracy against information contained in other sources, for example entering instructions such as intitle: and inurl: prefixes to find information within a general …

Elaboration (1) ACTDIP025

acquiring data from a range of sources, for example people, websites, books, mobile phones, radiofrequency identification (RFID) and data repositories such as the Australian Bureau of Statistics datasets, and compiling these data into a digital forma …

Elaboration (2) ACTDIP025

checking authenticity of data, for example ensuring the source or author is a reliable individual or organisation

Elaboration ACTDIP026

using features and functions of software to summarise data to create information, for example calculating a simple budget of income and payments and creating a summary table for analysis

Elaboration (1) ACTDIP026

visualising data to create information, for example identify trends and outlier data from spreadsheets using plots, or displaying geocoded data on a map

Elaboration (2) ACTDIP026

applying a set of conditions to a spreadsheet to organise and filter data, for example using conditional formatting to highlight the state of particular cells, and filtering and sorting categorical data using column filters

Elaboration (3) ACTDIP026

querying an existing database to extract data for analysis, for example devising multiple selection criteria or using simple structured query language (SQL) SELECT statements to select records and retrieve specified fields

Elaboration (4) ACTDIP026

describing the attributes of complex objects, for example defining the records, fields, formats and relationships of a simple dataset

Elaboration (5) ACTDIP026

modelling the attributes of real-world objects for a computer game

Elaboration ACTDIP027

determining the factors that influence proposed solution ideas, for example user age affects the language used for instructions, dexterity affects the size of buttons and links, hearing or vision loss influence captioned or audio-described multimedia …

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