Pregunta | Respuesta |
What is data | Data is a raw fact or figure that has no mean or context to a human |
What is information | Information is data that has been processed and given a context and meaning to a human |
What is ICT | ICT is a digital technology that manipulates, retrieves, stores, transfers, processes data and outputs information |
What is an ICT system | A digital system that inputs data, processes and outputs information with feedback and storage |
What are the components of ICT systems | People Procedures Data Information Hardware Software |
Coding of data | Proformed by a human to speed up data entry Help prevent incorrect data being entered Less storage space Allows more data to be sen on screen Speeds up searching |
Encoding of data | Carried out by the computer so that it can be stored, compressed, transferred and understood by other systems |
Direct Data | Data that has been collected for a one specfic purpose. e.g Barcode needed for name and price of item in store |
Indirect data | Data that has been collected for a primary purpose being used for a secondary purpose. e.g Barcode used for stock control |
Characteristics of a User | Age Experience Physical characteristics Environment of use task to be undertaken age |
User interfaces | GUI Command Line Menu driven Natural Language |
Features of a GUI | Windows Menus Pointers Icons |
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