(1) Data processing and information
This topic will focus on how raw data is collected, processed and transformed into information users will understand.
Real-world examples include online websites selling products or services, payroll systems and utility billing.
(2) Hardware and software
Hardware is the physical components of a computer system such as the central processing unit (CPU), hard disk, monitor and keyboard.
Software is the programs that run on a computer.ย Examples include word processors, databases and photo editing software.
(3) Monitoring and control
Sensors are devices that detect a physical quantity and converts it into a signal.ย Sensors are at the heard of monitoring and control technologies as they allow us to observe, control and respond to changes.
(4) Algorithms and flowcharts
A flowchart is a graphical representation of the steps a program takes to process data.ย An algorithm is a set of rules (procedure) that defines how a program is to be executed.ย Algorithms and flowcharts are used to represent solutions before a problem is tackled.ย For example, validate user input in an online form.
(5) eSecurity
If we use technology to login to our online banking, eSecurity helps to protect our data from threats by using authentication methods such as passwords and biometrics.ย eSecurity protects data, system and threats from unauthorised access.
(6) The digital divide
The digital divide considers inequality with regards to technology and its accessibility.ย For example, people who live in rural areas may struggle with slow or no internet at all whereas individuals living within cities generally have access to super-fast internet.ย Another example could be the availability of devices in developed and developing countries.ย These differences can impact education, employment and access to online services.
(7) Expert systems
An expert system is a computer system that makes decisions with an ability similar to a human expert.ย It will store knowledge and rules producing advice, diagnoses or decisions.ย Examples include medical diagnoses systems, vehicle fault diagnoses tools and credit approval systems.
(8) Spreadsheets
Spreadsheets are used by individuals and businesses to organise and analyse data.ย Examples include budgeting and forecasting, calculating learner grades and performing what-if analysis to support decisions.
(9) Modelling
We create a model to simulate and understand how a real-world system would work.ย ย It allows us to test ideas safely and predict outcomes.ย Examples include weather forecasting, scientific models used to predict the spread of diseases and financial models for business planning.
(10) Database and file concepts
Databases store, organise and manage data efficiently. Examples include customer databases within a hotel, supermarket or insurance company.
(11) Video and audio editing
This topic will cover video and audio editing involving modifying digital media so that it is suitable for its purpose, audience and deliver platform.ย Editing videos and audios requires specialist software that involve decisions surrounding export formats, compression and containers.ย We will consider the advantage and disadvantages.