Computer Studies - Junior Secondary 1 - Input devices: Light pen, touch screen, etc
Input devices: Light pen, touch screen, etc
Input devices: Light pen, touch screen, etc
Term: 2nd Term
Week: 4
Class: Junior Secondary School 1
Age: 12 years
Duration: 40 minutes of 2 periods each
Date:
Subject: Computer studies
Topic:- Input devices: Light pen, touch screen etc
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
|
PRESENTATION |
TEACHER’S ACTIVITY |
STUDENT’S ACTIVITY |
|
STEP 1 INTRODUCTION |
The teacher revises the previous lesson on input devices |
Students pay attention |
|
STEP 2 EXPLANATION |
She lists some other input devices such as lightpen, touch screen etc |
Students pay attention and participates |
|
STEP 3 DEMONSTRATION |
Using a physical objects, she explains their functions |
Students pay attention and participate |
|
STEP 4 NOTE TAKING |
The teacher writes a summarized note on the board |
The students copy the note in their books |
NOTE
INPUT DEVICES
1. Light pen
An input device that utilizes a light-sensitive detector to select, create and modify object on a display screen. A light pen is a light sensitive pen-like device used by pointing it at the display surface. A user brings the light pen to the desired point on the screen and presses a button, causing it to identify the current location. It is used to select options from a menu or to draw images.
A touchpad is used for pointing on a computer display screen. It works by sensing the user’s finger movement and downward pressure. It is often rectangular in shape and found mostly on laptops. It is an alternative to mouse.
It allows the user to operate / make selections by simply touching the display screen. The display screen is sensitive to touch of a finger or stylus. Widely used on ATM machines and most mobile phones.
A device that is used to capture and record sound.
These are photoelectric scanners that read bar codes printed on product containers. They are generally used in super markets.
Scanner reads texts, images or illustrations printed on paper and translate the information into a form that the computer can use. It works by digitizing an image.
MICR can identify character printed with a special ink that contains particles of magnetic material. This device is widely used in banking industry.
Also called mark sense reader is a technology where an OMR device senses the presence or absence of a mark, such as pencil mark. OMR is widely used in tests such as aptitude test.
It is an input and pointing device used in computer games.
An input device used to capture images and moving pictures
EVALUATION: 1. Apart from the mouse and keyboard, list and explain four other input devices
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively