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Unit 2.2
- What is ICT?
- The use of technology for the input,
processing, storage and transfer of data
and the output of information
- The use of technology for the input,
processing, storage and transfer of data
and the output of information
- ICT Systems
- Output from a system goes directly
to a human being or onto another ICT
system
- INPUT - PROCESS - OUTPUT
- Holiday Booking System
- Input -Date of departure
- Processing - Cost of holiday
for chosen destination for 2
Adults & 2 Children
- Output - Holiday itinerary together
w/ detailed costs on screen and
printed
- Input -Date of departure
- Output from a system goes directly
to a human being or onto another ICT
system
- Components of an ICT System
- People
- Needed to enter data and for non - ICT procedures
- Needed to enter data and for non - ICT procedures
- Data
- Raw facts, figures or set of values that, without context,
have no useful meaning to a human user
- Raw facts, figures or set of values that, without context,
have no useful meaning to a human user
- Procedures
- Involve non - ICT procedures to allow system to run
- Correct paper type in printer
- Backing up important data files
to a removable storage medium
- Correct paper type in printer
- Involve non - ICT procedures to allow system to run
- Software
- All programs that make up
the ICT system and data
held within it
- Applications
- Communications
- Systems
- Applications
- All programs that make up
the ICT system and data
held within it
- Hardware
- All physical components that make up computer system
- All physical components that make up computer system
- Information
- Data that has been processed or converted to give it meaning
- Data that has been processed or converted to give it meaning
- People
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