An ICT System and Its Components
- Created by: Steph16
- Created on: 11-04-15 18:41
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- An ICT System and Its Components
- What is ICT?
- Information Communication Technology
- Used to:
- Input data
- Store data
- Process and Transfer data
- Output of information
- Digital technology involved
- Laptop, mobile phone, satellite navigation unit, digital television.
- What is a System?
- Any activity that involves input, process and output.
- What is an ICT System?
- Where a combination of hardware and software allows data to be input, then processed by the system before the output is sent directly to a user or another ICT system
- Input
- Data is entered into the computer system. Either manually (keyboard) or bar code reader for example.
- Process
- Data inputted is used to convert the input into a readable form
- Output
- Information obtained by processing the data is presented to the user in a logical format
- The Components of an ICT System
- People
- Users of the system log on to the system, enter data and store or distribute outputs.
- Maintenance staff play a key role in ICT systems to carry out routine operations
- Design and development staff are involved in the system life cycle of the ICT system.
- Data
- A set of recorded facts, numbers or events that have no meaning.
- Procedures
- Security procedures to safeguard the system
- Operating procedures (transferring data into the system)
- Backup and Recovery procedures
- Procedures related to legislation.
- Organisations usually creates a number of procedures that their operation runs smoothly, irt is referred to as a code of practice.
- Software
- Application
- Consists of generic software such as databases, word processors.
- It also consists of specific application software, which can either be bespoke or off-the-shelf.
- System
- Consists of operating system and a range of utility programs
- Application
- Hardware
- IS the physical part of a computer which includes digital circuitry
- On the systems motherboard you have the Main Memory (RAM) and Central Processing Unit (CPU)
- The main memory is volatile, which means the data stored on it is lost when the computer is switched off
- Information
- Output from the system. This is when data has been processed to give meaning and context to the user.
- People
- What is ICT?
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