Unit 2 revision

ICT is used to

• input data
• store data
• process data
• transfer of data
• output of information

A system is an activity which involves input, processing & output

it is where a combination of hardware & software allows data to be input, processed by the system before the output is sent either to a user or another ICT system

INPUT - data is entered into the computer system. it can be enetered manually or by using a bar code reader

PROCESS - data inputted is used to convert the input into a readable form

OUTPUT - information obtained by processign the data is presented to the user in a logical form

These are the components whoch make up an ICT system

• people
• data
• procedures
• software
• hardware
• information

Data is a set of of recorded facts, numbers or events that have no meaning