Basic 7 · Computing · Term Revision
Term Revision in Computing
In this topic you will recall and summarise the term's work on computer components, the Windows operating system, technology in the community, health and safety, and presentation software.
By the end of these notes you should be able to:
- Recall the key ideas on computer components and systems
- Recall the key ideas on technology in the community and health and safety
- Demonstrate practical skills with the keyboard, mouse and workstation
What you already know
- All topics covered in Computing this term
Copy everything that has a blue line on its left into your notebook. The other parts are for reading.
Lesson 1
- Strand
- Revision
- Sub-strand
- Term Revision
Introduction
Revision ties together everything you have learned about the parts of a computer and how to use its operating system. Use these notes to test yourself.
1. Computer Components
| Topic | Key points |
|---|---|
| fourth generation | microprocessors, VLSI, PCs, GUIs, networks, portable devices |
| input devices | manual (keyboard, mouse, touchscreen) and automatic (barcode reader, sensors) |
| output devices | soft copy (monitor, speakers) and hard copy (printers, plotters) |
| storage devices | HDD, SSD, flash drives, memory cards, CDs, DVDs, Blu-ray; capacity and speed |
2. Computer Systems
| Topic | Key points |
|---|---|
| desktop | wallpaper, icons, Recycle Bin, taskbar |
| Start menu | apps list, pinned apps, tiles (Windows 10) |
| taskbar | Start, search, Task View, taskbar buttons, notification area, Show desktop |
| preview thumbnails | point at a taskbar button to see and peek at open windows |
| user accounts | administrator, standard, guest or child |
| file management | create, rename (F2), copy (Ctrl + C), cut (Ctrl + X), paste (Ctrl + V), delete, restore |
3. Practical Review
- Connect the keyboard and mouse to the desktop computer.
- Identify each device and state whether it is input, output or storage.
- Demonstrate one correct use of each device, such as typing your name and opening a folder.
- State one care or safety rule for the workstation.
4. Self-Test Questions
Classify devices
Classify these devices: scanner, projector, SSD, microphone, plotter.
- Scanner: input (enters images).
- Projector: output (displays on a wall).
- SSD: storage (keeps data).
- Microphone: input (records sound).
- Plotter: output (prints large drawings).
Answer: Input: scanner, microphone. Output: projector, plotter. Storage: SSD.
5. Linking the Topics
Every computing topic is connected. Input devices bring data in, the processor works on it, output devices show the results and storage devices keep them. The operating system, such as Windows, manages all of these and lets you organise your work into files and folders.
6. Common Mix-Ups to Avoid
Learners often confuse RAM with storage. RAM is temporary working memory that loses its data when the power goes off, while a hard disk or SSD keeps data permanently. Another common mix-up is between copying and moving files: copying leaves the original in place, while moving takes it away. Finally, remember that a touchscreen is both an input and an output device, because it displays information and also accepts touch.
New words
- revision
- Going over work to remember it better.
- component
- A part of a computer system.
- operating system
- Software that manages the computer and its programs.
- classify
- To arrange items into groups.
Summary
- Components include input, output, processing and storage devices.
- Windows features include the desktop, Start menu, taskbar, thumbnails and user accounts.
- File management involves creating, naming, copying, moving and deleting files.
Class activity: Device Demonstration
- Connect a keyboard and mouse to the desktop computer.
- Identify and demonstrate one use of each device.
- Name one care or safety rule for the workstation.
You need: Desktop computer, Keyboard, Mouse
Exercises
Answer in your exercise book first, then check your answers.
1. Which is an output device?
- A. Projector
- B. Scanner
- C. Keyboard
- D. Microphone
Show answer
Answer: ProjectorDisplays information.2. Which shortcut renames a selected file?
- A. F2
- B. F5
- C. F7
- D. Esc
Show answer
Answer: F2Rename.3. SSDs are faster than HDDs.
- A. True
- B. False
Show answer
Answer: TrueNo moving parts.4. Software that manages the computer and its programs is the ______ system.
Show answer
Answer: operatingSuch as Windows.5. State two features of fourth-generation computers.
Show answer
Answer: Microprocessors and small size (or low cost, GUI, networking).Any two.6. Explain the role of the operating system in a computer.
Show answer
Answer: It manages hardware and software, lets users run programs and organises files and folders.Manager of the computer.
Lesson 2
- Strand
- Revision
- Sub-strand
- Term Revision
Introduction
The second half of the term focused on how technology affects learning, the environment and our health, and on making presentations. Let us review these ideas.
1. Technology in the Community
| Topic | Key points |
|---|---|
| technology tools | calculators, Scratch, Lightbot, GeoGebra, PhET, Google Earth, e-books |
| benefits | access to information, self-paced learning, feedback, collaboration, creativity |
| e-waste | discarded electronics containing lead, mercury and cadmium |
| responsible practices | switch off, sleep mode, reduce, reuse, repair, refurbish, recycle; Act 917 |
| upcycling | making useful items from clean, safe computer parts |
2. Health and Safety
| Topic | Key points |
|---|---|
| health hazards | eye strain, RSI, carpal tunnel syndrome, back pain, hearing damage, sleep problems |
| safety measures | no overloading, CO₂ extinguisher, no food or drinks, safe cables, online safety |
| posture and habits | straight back, feet flat, wrists straight, 20-20-20 rule, breaks |
| workstation | screen at eye level, adjustable chair, no glare; eliminate, reduce, then habits |
3. Presentation Software
| Topic | Key points |
|---|---|
| presentation software | creates slide shows; PowerPoint, Google Slides, Impress, Keynote |
| interface | ribbon, slide thumbnails, slide pane, notes pane, status bar, views |
| themes and templates | Design tab; consistent look; ready-made presentations |
| Insert tab | New Slide, Table, Pictures, Shapes, SmartArt, Chart, Symbol |
| Font group | font, size, bold, italic, underline, colour, Change Case (Shift + F3) |
4. Linking the Topics
The topics connect in real life. When you prepare a presentation on e-waste, you use technology tools for learning, you sit correctly at the workstation to protect your health, and you present information that helps protect the environment. Thinking in this way helps you understand why each topic matters.
5. Revision Tips
- Practise on a computer whenever possible, not just from notes.
- Make flash cards for shortcuts such as Ctrl + C, Ctrl + V, F2, F5 and Shift + F3.
- Draw and label diagrams such as the taskbar, the PowerPoint window and a safe workstation.
- Explain each topic to a friend in your own words.
New words
- e-waste
- Discarded electrical and electronic equipment.
- ergonomics
- Designing workplaces to fit the human body.
- shortcut
- A key combination that performs a command quickly.
- upcycling
- Turning old items into more valuable ones.
Summary
- Technology tools bring many benefits, but e-waste must be managed responsibly.
- Healthy posture, breaks and safe workstations prevent computing-related disorders.
- PowerPoint is used to create presentations with themes, inserted objects and formatted text.
Class activity: Revision Relay
- Each group answers five quick questions on one topic and passes the sheet on.
- Groups check answers using these notes.
- Each learner writes two topics they need to revise further.
You need: Desktop computer, Keyboard, Mouse
Exercises
Answer in your exercise book first, then check your answers.
1. Which substance in e-waste is toxic?
- A. Lead
- B. Oxygen
- C. Water
- D. Sugar
Show answer
Answer: LeadDamages the brain.2. Which shortcut changes text case in PowerPoint?
- A. Shift + F3
- B. Ctrl + B
- C. F5
- D. Ctrl + C
Show answer
Answer: Shift + F3Change Case.3. A CO₂ extinguisher is suitable for electrical fires.
- A. True
- B. False
Show answer
Answer: TrueIt does not conduct electricity.4. The rule that rests the eyes every 20 minutes is the 20-20-______ rule.
Show answer
Answer: 2020 seconds at 20 feet.5. Name three responsible practices for reducing the impact of computers on the environment.
Show answer
Answer: Switch off after use, repair instead of replacing, recycle at certified centres.Any three.6. Explain how a well-designed presentation can educate a community about e-waste.
Show answer
Answer: Clear slides with pictures and short points make the dangers and solutions easy to understand and remember.Clear communication.
Homework
- Make a mind map of all the Computing topics covered this term.