ICT Unit 3: Data, Information & Knowledge

Raw facts and figures that on their own have no meaning 

• Data
• Information
• Knowledge

The ability to form judgements and opinions.  To make predictions and decisions based on that understanding.

• Data
• Information
• Knowledge

A form of coding data is 

• Male, Female
• M or F
• Small, Medium, Large, Extra Large

Benefits of encoding data include

• Easier 
• Quicker
• Less storage space required, faster to enter data

One type of error in a computer system is

• Rubbish in, Rubbish out
• Garbage in, Garbage out
• Trash in, Trash out 

Program errors, incorrect formulas, viruses, faulty equipment

• Transposition
• Transcription
• Processing
• Transmission

Interferance on the line, faulty device

• Transcription
• Transposition
• Processing
• Transmission

Problems with language barriers, dialect, handwriting

• Transmission
• Communication
• Transcription
• Transposition

The meaning of validation is to 

• Check the data entered is identical to the source document
• Ensure the data processed is sensible and realistic

The meaning of verification is to 

• Check the data entered is identical to the source document
• Ensure the data processed is sensible and realistic