This student text provides complete coverage of the AQA specifications at A2. A task driven approach ensures that the student is able to understand the role and use of information and communication technology within organisations and society.Data store Process Entity (source or recipient) Data flow Figure 5 Data-flow notation What does this mean? ... In a manual system this may be in an address book, a directory, or a set of invoices; in a computer it is generally a file of some sort. ... With data-flow diagrams, it is processes involving data that are included. ... For example, government departments receive tax returns from payroll systems, and VAT returns from accounting systems; the board of governors at a school receivesanbsp;...
|Title||:||A2 Level ICT for AQA|
|Author||:||Sharon Yull, Jackie Rogers|
|Publisher||:||Heinemann - 2004-06-24|