ICT Systems and Components

ICT - Information Communication Technology (everything that handles digital information)

IT - Information Technology (only computure)

ICT Systems - A way of using ICT to complete tasks, all have Input, Processing and Output in common

             INPUT                                     PROCESSING                                OUTPUT

capturing and entering data        performing actions on dat        results produced after process

ICT User -  log onto system enters data, stores and distribute output

Maintance Staff - routine checks, maintain system, diagnostics, fixing malfunctions, carry out updates, security, performs backup

Design + Development Staff - invovled in the system life cycle analysis, desing and implementation, tetsing makes changes when discovering faults

Operational - methods for transfering data

Backup + Recovery - ensuring data is kept secure and backed up

Legislation - interpretation of laws

Phyiscal part of computures including digital circuitry

                        Main Memory (RAM)

                                       |

Input ------  CPU (central processing unit)  ------ Output

                                       |

                                Hard Disk

Computure Programmes which provide step by step instruction to complete a task using ICT

Raw material of any ICT system and is processsed by system to provide output data

The results from processing data, can be the output of a computure system

Hardware - speed of components, functionality with existing hardware and software, robustness

Software - compatibility withe existing hardware and software, well written software

Communication - when data cannot be understood or processed computures acn become slow, bottle neck can occur when the user network doesn not have enough data handeling

Input - information or data not in the correct format for software to processed or accepted

Infelxibitlty - hardware and software can be poorly designed