Lesson Notes By Weeks and Term - Senior Secondary 1

Output devices: Monitor

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Term: 2nd Term

Week: 1

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:      Computer Studies and ICT

Topic:-       Output devices: Monitor

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define Output devices and Monitor
  2. State the functions of output devices
  3. Discuss the features and uses of the Monitor

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, pictures, Data Processing for senior Secondary Education by Hiit Plc, WAPB Computer Studies for Senior Secondary I by Adekunle et al, On-line Materials.

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the previous lesson on keyboard

Students pay attention

STEP 2

EXPLANATION

He defines output devices stating their functions

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He defines Monitor. Then proceeds to discuss the features and uses of the monitor

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

OUTPUT DEVICES

An output device is a piece of computer equipment that receives data from one source and converts it into another form. Depending on their function, output devices can transform data into various other forms such as audio, visual or physical copy.

Examples of output devices include monitor, printer, speaker, plotter, braille embosser etc

 

EVOLUTION OF THE MONITOR

The Cathode Ray Tube (CRT) used as a computer monitor was invented by Karl Ferdinand Braun. This monitor employs the CRT technology used most commonly in the manufacturing of television screens. In this, a stream of intense high energy electrons is used to form images on a fluorescent screen. Today, CRT monitor are being replaced with flat Plasma screen, Liquid Crystal Display (LCD) and Light Emitting Diode (LED).

Monitor is the device which displays all the icons, text, images, etc. over a screen. When we ask the computer to perform an action, the result of that action is displayed on the monitor

 

TYPES OF MONITOR

There are two types of monitor, namely:

  1. Monochrome monitor

This monitor displays its characters in only one colour. The colour could be white, green or amber. Looking at the monochrome monitor, one can see two colours; one colour for the background and one for the foreground. The two colour combinations can therefore be black and white, green and black or amber and black.

  1. Colour monitor

This monitor displays information in colours. It is similar to a colour television but it handles data more quickly and has a sharper output

 

 

 

EVALUATION:    1. Define Output devices. List 5 examples

  1. Define Monitor
  2. Discuss the types of monitors and state their features

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively