The input devices (OMR, OCR, MICR, bar code reader, scanner, touch screens, biometric and others) and output devices (monitors, printers, plotters, 3D printers, speakers) and how to match them to an application.
5 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.
A supermarket till, a school exam marker, an ATM and a fingerprint lock all start with an input device. Choosing the right one is a classic exam question.
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.
Mouse, joystick, light pen, touchpad, touch screen.
Reads pencil marks: multiple-choice sheets.
Printed characters → text / magnetic ink on cheques.
Checkouts and stock control.
Fingerprint, face, iris, voice: identity and security.
Laser (fast), inkjet (colour), dot matrix (multi-part), thermal (receipts).
Large drawings / solid objects.
Speakers, headphones, earphones.
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]
A school wants to computerise its library. Students will borrow books with a card, and the librarian will print overdue notices.
(a) (a) State one suitable input device for scanning the code on each book and give a reason. [2]
(b) (b) Name the output device for the overdue notices and state one reason for choosing it. [2]
(c) (c) Distinguish between OMR and OCR. [4]
(d) (d) The library also uses a fingerprint reader to let staff in. Name this type of input device and state one advantage and one disadvantage. [3]
(e) (e) Give two examples of audible output devices. [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.