Students Learn About

Students Learn To

 Data and information

• importance of information to society, particularly in electronic form

Data forms

• analogue
• digital

Data coding such as

• decimal and binary
• ASCII

Data sources such as

• books
• internet
• magazines
• journals

Data types such as

• text and hypertext
• graphics
• audio
• video
• animation

 Data transmission types

• serial
• parallel

 Data storage and function

• primary storage such as RAM and ROM
• secondary storage such as random and sequential access

   secondary storage media such as tape, disk and optical media

• bits and bytes such as kilobytes, megabytes, gigabytes and terabytes
• file types

 Data compression techniques

·        lossy

·        lossless

 Data security

·        need for data security

·        basic security methods

·        define and compare data with information

·        explain the process of deriving information from data and apply the process to a given scenario

·        convert data between analogue and digital

·        describe and compare coding methods

·        perform simple calculations on data coding

·        acquire, manipulate and acknowledge data and information in solving a specific problem

·        analyse a case study to observe ethical practice in the use of data and information

·        describe and manipulate data types for a range of purposes

·        define transmission types

·        investigate the advantages and disadvantages of serial and parallel transmission methods

·        contrast primary and secondary memory

·        describe the functions of primary and secondary memory

·        select and use the appropriate data storage media for a given situation in an ethical manner

·        state the reasons for the range of data storage and media formats

·        discuss the units used when measuring data storage

·        recognise file extensions and their use within chosen options

·        explain the purpose of data compression techniques

·        perform data compression on a file

·        explain the reasons why data needs to be secured

·        compare and contrast basic security methods used to protect data