Year 10 · ICT · Summer 2
Website authoring and images; the Year 10 mock · Lesson 5 of 5
Revision: theory topics 1 to 7
Exam practice2.1 Input devices4.1b Types of network and cloud computing7.4 Implementation
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
You will learn to
- Use the command word to decide what kind of answer a theory question needs.
- Answer timed questions on theory topics 1 to 7.
- Explain why one-word answers such as 'faster' or 'cheaper' rarely earn marks.
- Evaluate your answers with the mark scheme and update your RAG list.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Success criteria
You have got it when you can say:
- I can say the difference between Describe and Explain.
- I can write an advantage that says what is better, and better than what.
- I can colour each syllabus point red, amber or green from my marks.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Retrieval starter
Questions from before. Write your answers, then show them.
- Last lesson
font-family: Arial, Helvetica, sans-serif; means…
A Only sans-serifB Use Arial; if missing, Helvetica; otherwise any sans-serifC Use all three at once
B. Use Arial; if missing, Helvetica; otherwise any sans-serif
- Last unit
A pie chart is for…
A Parts of a wholeB Comparing 30 categoriesC Change over time
A. Parts of a whole
- Earlier this year
Validation checks that…
A The spelling is rightB The data is sensible: the right type and in rangeC The data is what the person meant
B. The data is sensible: the right type and in range
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (1 of 7)
- Input device
- Hardware that sends data or instructions into a computer.
- Direct data entry (DDE)
- Reading data straight from its source with no manual typing.
- Sensor
- An input device that measures a physical quantity such as temperature.
- Actuator
- An output device, such as a motor or valve, that makes something move or happen.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (2 of 7)
- OCR
- Optical character recognition: turns a scanned image of text into editable text.
- Barcode
- A pattern of lines that stands for a number, read by a light beam.
- Chip and PIN
- A bank card chip read by a terminal; the user types a PIN to prove identity.
- Trackerball
- A pointing device where you roll a ball; the device stays still.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (3 of 7)
- Network
- Two or more devices connected so they can share data and resources.
- IP address
- An address that identifies a device on a network or the internet.
- Switch
- Connects devices on a LAN and sends data only to the right device, using MAC addresses.
- LAN
- Local area network: covers one building or site.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (4 of 7)
- WLAN
- Wireless LAN: devices connect by Wi-Fi.
- WAN
- Wide area network: covers a large area, joining many LANs.
- Intranet
- A private network for members of one organisation.
- Extranet
- Part of an intranet that authorised outsiders can reach.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (5 of 7)
- Cloud computing
- Storing data and running software on remote servers over the internet.
- Systems life cycle
- The stages used to create a new system: analysis, design, development and testing, implementation, documentation, evaluation.
- Systems analyst
- The person who studies the current system and plans the new one.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (6 of 7)
- System specification
- A list of the hardware and software the new system needs.
- Check digit
- An extra digit calculated from the other digits, used to detect input errors.
- Data capture form
- A paper or on-screen form used to collect data.
- Test plan
- A table listing each test, its data, the expected and actual outcomes and any remedial action.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Key words (7 of 7)
- Direct changeover
- The old system stops and the new one starts immediately.
- Parallel running
- Old and new systems run together until the new one is trusted.
- Pilot running
- The new system is tried in one branch before the rest.
- Phased implementation
- The new system is introduced one part at a time across the organisation.
The explanation · step 1 of 17 · part 1 of 2
Command words in ICT theory
Every question starts with a command word. It tells you what kind of answer earns the marks.
| Command word | What it asks for | ICT example |
|---|---|---|
| State or Give | A short fact. No reason needed. | Give one input device used at a till. A barcode reader. |
| Identify | Name or pick out one thing. | Identify the implementation method that runs both systems: parallel running. |
| Describe | What something is like, or what happens, in order. | Pilot running: the new system is used in one branch first. |
| Explain | Why or how. Give a reason, joined with 'because' or 'so'. | A switch is more secure than a hub, because it sends data only to the right device. |
| Compare | How two things are alike or different. Mention both in each point. | An intranet is only for staff, but the internet is open to everyone. |
| Evaluate | Points for and against, then a conclusion. | Cloud storage for a school: pros, cons, then a judgement. |
The explanation · step 1 of 17 · part 2 of 2
Command words in ICT theory (continued)
As a rough guide, one mark needs one clear, separate point.
The explanation · step 2 of 17
Answers that score
Short words like 'faster', 'cheaper' or 'easier' rarely score on their own. Say what is better, and compared with what.
| Scores nothing | Scores |
|---|---|
| It is faster. | Scanning a barcode is faster than typing the number, so queues are shorter. |
| It is cheaper. | Video conferencing saves travel costs, because staff do not travel to meetings. |
| It is more secure. | Biometrics cannot be forgotten or shared like a password. |
Link every answer to the scenario in the question. A general answer often loses marks.
The explanation · step 3 of 17 · part 1 of 2
Time, marks and the RAG list
Paper 1 (Theory) lasts 1 hour 30 minutes. It has 80 marks. 90 ÷ 80 is about 1.1 minutes per mark.
- Do the timed questions in silence.
- Mark them with the real mark scheme.
- Write each missing point in a different colour.
- Colour each syllabus point: red (cannot do yet), amber (makes mistakes), green (can do under time).
- Revise the reds first.
The explanation · step 3 of 17 · part 2 of 2
Time, marks and the RAG list (continued)
Check the paper length on the current Cambridge 0417 syllabus for the year your pupils sit the exam.
2.1 Input devices · The explanation · step 4 of 17 · part 1 of 2
What an input device does
An input device lets data or instructions go into a computer.
Some are manual: a person operates them, like a keyboard. Others capture data automatically, like a sensor.
When you answer an exam question, name the device, say what it is used for, then give a reason linked to the situation.
2.1 Input devices · The explanation · step 4 of 17 · part 2 of 2
What an input device does (continued)
2.1 Input devices · The explanation · step 5 of 17 · part 1 of 2
Keyboards and numeric keypads
A keyboard is used to type text and commands. Most use the QWERTY layout.
A concept keyboard has flat keys with pictures or words. Fast-food tills use them.
A numeric keypad has only numbers and a few keys. It is on ATMs, chip and PIN terminals, phones and the side of large keyboards.
2.1 Input devices · The explanation · step 5 of 17 · part 2 of 2
Keyboards and numeric keypads (continued)
| Device | Use | Advantage | Disadvantage |
|---|---|---|---|
| Keyboard | Typing documents, emails, data into forms | Fast, accurate entry of text for a trained typist; familiar to most users | Slow for people who cannot type; long use can cause RSI; takes up desk space |
| Numeric keypad | Entering PINs at an ATM, prices at a till, phone numbers | Faster than a full keyboard for numbers; small, so fits on a card terminal | Keys are small and can be hard to press; PIN can be seen by shoulder surfing |
2.1 Input devices · The explanation · step 6 of 17
Pointing devices
A pointing device moves a pointer (cursor) on a screen and selects things.
A mouse is moved on a desk. A touchpad is a flat pad on a laptop: you move a finger on it. A trackerball is like an upside-down mouse: you roll the ball and the device stays still.
| Device | Use | Advantage | Disadvantage |
|---|---|---|---|
| Mouse | Selecting icons and menus in a GUI; drawing | Faster to select options than using keyboard shortcuts; easy to use | Needs a flat surface; can cause RSI with long use |
| Touchpad | Pointing on a laptop | Built in, so no extra device to carry; works where there is no desk | Harder to control precisely than a mouse, e.g. for drawing |
| Trackerball | People with limited hand movement; control rooms; some medical equipment | Does not move, so needs less space and less wrist movement; easier for some disabilities | Not as fast as a mouse for most users; costs more |
2.1 Input devices · The explanation · step 7 of 17
Remote controls, joysticks and driving wheels
A remote control sends infrared or radio signals to a TV, projector or air conditioner from a distance.
A joystick controls movement in games and flight simulators. A driving wheel controls steering in driving games and car simulators.
| Device | Use | Advantage | Disadvantage |
|---|---|---|---|
| Remote control | Changing TV channel; controlling a projector or a multimedia system | Can be used from a distance, so the user does not need to move | Infrared needs a clear line of sight; small buttons hard for some people; easy to lose |
| Joystick | Games; flight simulators; controlling robot arms | Easier to control movement in any direction than with keys; feels realistic | Harder to use for selecting menus or typing |
| Driving wheel | Driving games and training simulators | More realistic than a keyboard, so training is more useful | Expensive; takes up space; only useful for one kind of task |
2.1 Input devices · The explanation · step 8 of 17
Touch screens and light pens
A touch screen is a screen you touch to select options. It is used on phones, tablets, ATMs, information kiosks and self-service tills.
A light pen is a pen with a light sensor. You point it at a screen to draw or select. It is rare now and is used in some design and medical work.
| Device | Use | Advantage | Disadvantage |
|---|---|---|---|
| Touch screen | Phones, ATMs, kiosks, self-service checkouts | Fast and intuitive, no training needed; no keyboard or mouse, so saves space | Screen gets dirty and scratched; limited options per screen; hard for some disabilities |
| Light pen | Drawing directly on screen; selecting on medical or design screens | More precise than a finger; no desk space needed | Can be tiring to hold up against a screen; not suitable for all screen types |
The explanation · 9 more steps
More on the lesson page
The lesson page has the rest of the explanation, step by step:
- Scanners, digital cameras and microphones
- Sensors
- Wi-Fi and Bluetooth
- Cloud computing
- Internet, intranet and extranet
- LAN, WLAN and WAN
- Four ways to change over
- Advantages and disadvantages
- Choosing the right method
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Quick quiz · 1 of 3
.csv is…
- A Comma-separated values: a generic data format
- B A web page
- C A picture
A. Comma-separated values: a generic data format
Any spreadsheet or database can open it.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Quick quiz · 2 of 3
A .pdf is used because…
- A Anyone can edit it
- B It looks the same on every computer
- C It is the smallest file
B. It looks the same on every computer
Layout and fonts are fixed inside the file.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Quick quiz · 3 of 3
Zip compression is…
- A Neither
- B Lossy
- C Lossless
C. Lossless
Every byte comes back when you unzip.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Exit ticket
Answer on paper before you go. Then check.
Exporting means…
A Saving in a format another program can openB PrintingC Deleting
A. Saving in a format another program can open Importing is bringing a file in.
A stylesheet is attached with…
A <style> in the bodyB <link rel="stylesheet" href="styles.css"> in the headC <css>
B. <link rel="stylesheet" href="styles.css"> in the head The exact file name matters.
Year 10 · ICT · Website authoring and images; the Year 10 mock · Lesson 5 of 5
Homework and the challenge
Homework
The ICT 21 and ICT 12 quizzes; one past practical task over the summer.
End-of-unit challenge
Year 10 mock: Paper 1 theory (1 hour 30 minutes) and one practical section, marked with the Cambridge mark scheme.