Learning Outcomes

At the end of this Unit students will  be able to:

• identify different data types: logical/Boolean, alphanumeric/text, numeric (real and integer) and date
• select appropriate data types for a given set of data: logical/Boolean, alphanumeric/text, numeric and date
• describe what is meant by the terms file, record, field and key field
• describe different database structures such as flat files and relational tables including the use of relationships, primary keys and foreign keys
• state the difference between analogue data and digital data
• explain the need for conversion between analogue and digital data