Newsletters, brochures, flyers, posters - printed and handed out to provide information
Advantages of paper-based communication
No need for computer or internet connection, physical copy of documents
Disadvantages of paper-based communication
Distribution one-by-one, printing costs, restricted target audience
Computer-based communication
Using computers to create documents - insert images, adjust formatting, use templates, apply effects
Website
Provides up-to-date information, interactive features like animations, videos, graphics, sound
Advantages of website
No need to print, accessible from anywhere with internet, can be easily updated
Disadvantages of website
Can be hacked and information altered, setting up and maintaining website is expensive and requires special skills
Multimedia presentation
Includes animations, sound effects, links to videos - more appealing than just reading printed material
Multimedia presentation vs website
Presentation is easier to display and update, but only available at school during school time. Website is more accessible from anywhere at any time.
Mobile-based communication
Phone calls, text messages, accessing internet on mobile devices
Advantages of mobile communication
Portable, can use free minutes/texts, always have phone on hand
Disadvantages of mobile communication
Long distance calls can be expensive, signal can be weak/non-existent, may require apps like WhatsApp
Computer modelling
Replicating or simulating real-life systems, e.g. flight simulators
Reasons for using computer models
To save cost and time by testing before building, to train in a safe environment, to investigate system capabilities in detail, to make predictions about future operation
Computer modelling applications
Spreadsheets to track profit and loss, simulating building safety tests
Computer model
A safe controlled environment to investigate the capabilities of a system in detail by interrogating and manipulating the model, and to make predictions of how the system would operate in the future
Using a spreadsheet to forecast profits/losses
1. Enter values into cells
2. Formulas work out calculations
3. Change values and formulas automatically update new revenues
Flight simulator
Pilots can learn to fly a plane using the same controls and interface as a real plane, different conditions can be tested, and it reduces costs compared to using a real plane
Building/bridge simulation
Ensures the potential building could cope with physical demands including earthquakes and storm threats, before the actual building is constructed
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Why use computer models before building a bridge
Safer than risking human life
Can test different scenarios
Saves money on resources
Fewer errors in final version
Why use computer models to simulate a flood defence system
Cheaper than building the real thing
Quicker to see results
Safer than building the real thing
Easy to change variables and test different 'what if' scenarios
Computer controlled robots
Used in factories/manufacturing to improve productivity, consistency, and reduce costs compared to human workers
How computer controlled robots work
Programmed with a sequence of instructions
Stored in memory and can repeat the same sequence
Have sensors to detect environment and conditions
Advantages of computer controlled robots
Can work 24/7 with consistency and accuracy
More productive than humans
Can work in extreme conditions unsuitable for humans
No need to pay wages
Disadvantages of computer controlled robots
Cannot easily adapt beyond their programmed instructions
Expensive to purchase and maintain
Can lead to job losses and deskilling of workers
Existing robots can be repurposed by replacing sensors, rather than developing a new robot from scratch
Advantages of repurposing existing robots
More likely to be reliable as the device is known to work
Cheaper than full development costs for a new robot
Quicker to get into operation
Lower maintenance costs as faults would be known
Lower training costs as staff are already familiar
School Management Systems
Systems used in schools by staff to complete a number of tasks on a daily basis
Using School Management Systems
1. Teachers click on a class and complete the register
2. Register is saved and other users can see who is present/absent
3. Teachers can question if a student is missing from their lesson when they were present earlier
Benefits of School Management Systems
Allows teachers to see who should be attending their lessons
Attendance data can be easily analyzed and reports generated
Grades, work ethic, predicted grades can be tracked and included in school reports
All data is centralized and secure with login credentials
Benefits to parents
Can access student reports online
Receive immediate feedback on exam results and student progress
No need for printed reports, reducing costs
Online Booking Systems
Allow users to make and confirm bookings instantly, preventing double booking
How Online Booking Systems Work
1. User selects requirements (e.g. flight details)
2. System checks availability and provides output (available options or rejection)
3. User makes booking and payment, confirmation sent
When Online Booking Systems are Used
Booking flights, trains, buses
Booking entertainment (theatre, cinema, stadium events)