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What you need to know:
What you need to know:
Convert between denary, binary and hexadecimal
Use arithmetic shift functions and their effect
Use binary addition and explain overflow
Storage of characters
Describe standardised character sets e.g. Unicode and ASCII
Data Types
Data types including integer, boolean, real, characters and string
Explain the digital storage of graphics
Explain the digital storage and sampling of sound
Describe the use of metadata
Data Structures
Describe, design, interpret and manipulate data structures including records, one-dimensional and two-dimensional arrays
Select, identify and justify appropriate data structures for given situations.
File Design
Design files and records appropriate for a particular application.
Data validation and verification
Explain and use appropriate techniques for data validation and verification
Design algorithms and programming routines that validate and verifiy data.
Revision
Check your understanding using the WJEC resource and questions
Check your understanding using the WJEC resource and questions
WJEC Blending Resources - These are interactive resources that will help with your knowledge and understanding. You could use these as revision for the topic
WJEC NOTES
WJEC NOTES
T4 WJECNotes.pdfPage updated
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