Information system Flashcards
What is a system?
A collection of parts that work together to achieve a particular purpose or result
What is the difference between data and information
Data is unprocessed raw material used by information processes, which turn the data into information. Information is the meaning that humans assign to data
What are the parts of an Information system?
Environment Users Purpose Information processes Data/information Information technology Participants
What is the environment?
Everything that influences and is influenced by the information system
What are the 7 information processes
Collecting Organising Analysing Storing and Retrieving Processing Transmitting and Receiving Displaying
What is processing?
The process that manipulates data by updating and editing it
What is transmitting and Receiving?
The process that transfers data/information between information systems
Data is used in an information system of various types, what are they?
Text
Numbers
Image
Audio
What are the two ways to represent images?
Bit map and Vector Graphics
What are the advantages of digital data?
Easy to store Easy to manipulate Easy to transmit Cheap to handle Easy to keep up to date Fast to process
What are the disadvantages of digital data
Must be backed up to avoid loss Copyright/privacy loss Must have access to technology Ongoing cost of hardware and software updates Training of personnel