Information Systems Flashcards
What is an information?
Information refers to data, which has been processed and therefore meaningful and fit for purpose.
What is an information system?
Information system is a set of interrelated components working together to collect retrieve process, store and disseminate information for the purpose of facilitating planning, controlling coordination and decision making.
what are the components on an information system?
Hardware.
software
data
humans
procedure
Define hardware
This is of all types of media used to input, process, manage. distribute and save information in an organization.
Define software.
This is the intangible parts of the information system.
Mention the two types of software.
System software
Set of programs that help run the computer and coordinates instructions btwn the applications software and computer hardware
application software
contains programs which can help users enable companies to perform business functions.
What are the two types of data?
Analog data.
the data transmitted is in a continuous manner.
Digital data line.
data is represented in a binary format.
Define data.
This refers to raw information that consists of basic facts and figures.
mention four media types.
Statistics
texts.
pictures.
videos.
sound.
animation.
Define procedure
These are the commands for combining the components to process information and produce the preferred output.
Mentioned the two categories of information system.
Manual information system
Computerized information system.
Mention three differences between the manual and computerized information system.
Computerized
Fast.
expensive.
Back up is available.
uses humans and computer
Manual
Slow
Cheap.
Information can easily be lost
uses only humans.
Mention the types of information systems.
Transaction processing system office automation system
knowledge work information system.
decision support system
management information system.
Executive support system.
Mention three attributes of an information system.
Accuracy.
timely.
clear and understandable.
Relevance.
complete
Simple
Accessible
Reliable
User-friendly
Cost effective
Mention the processes for the development and presentation of information.
Create
Collect.
Sort/Organised
Process/Manipulate
Store
Retrieve
Communicate