The difference between data and information, sources of each, turnaround, human-readable and machine-readable documents, hard and soft copy, and how to judge whether online information is reliable.
4 narrated scenes. Press play, listen and read along — the points appear as they are explained. Use ‹ Prev / Next › or the scene bar to jump to any scene.
“The score is 85” is data. “Ann scored the highest mark in the class” is information. Knowing the difference, and trusting the right sources, is a core IT skill.
Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.
Copy these into your notebook in your own words — that is how they stick.
Raw, unprocessed facts.
Processed data that is meaningful.
People, places, things.
Read by people.
Read by machines: bar code, OMR, magnetic stripe.
Output that is sent back as input.
Paper / electronic.
Authenticity, currency, relevance, bias.
3 quick games on this lesson. Earn XP and badges as you play — your best score for each game is saved. Games are for practice and do not change your exam readiness. More games in the Information Technology Arcade.
8 items modelled on real CSEC Paper 1 questions. Choose one answer for each, then check. Aim for 80% or better. Work each item on paper first.
Write full answers, then reveal the mark scheme and tick the points you earned (13 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [13 marks]
Students in a school conduct a survey of 200 students on their favourite subject. A teacher also asks them to research the topic online.
(a) (a) Distinguish between data and information using an example from the survey. [3]
(b) (b) State the source type for (i) the survey answers and (ii) the Internet articles. [2]
(c) (c) Explain what a turnaround document is and give one example. [2]
(d) (d) The class finds a website with no author that was last updated in 2011. Explain two reasons why it may NOT be reliable. [4]
(e) (e) Name two other qualities used to judge online information. [2]
Find these in your own past-paper booklets for extra timed practice. Items above are written in the style of these papers; any adapted from a specific question say so.