Computer Studies - Junior Secondary 1 - Information transmission

Term: 3^rd Term

Week: 4

Class: Junior Secondary School 1

Age: 12 years

Duration: 40 minutes of 2 periods each

Date:

Subject:      Computer studies

Topic:-       Information transmission

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

1. Discuss the classes of means of transmitting information
2. Explain the modes of receiving information

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

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

NOTE

INFORMATION TRANSMISSION

CLASSIFICATION OF MEANS OF TRANSMITTING INFORMATION

There are two major means of transmitting information, namely:

1. Electronic Means

Information transmission is from the sender to the receiver via an electronic communication channel. Electronic means of information transmission include telephone, telegraph, telex, radio, etc. All modern methods of information transmission except prints are electronic means of transmitting information.

2. Non-Electronic means

The non-electronic means of transmitting information does not require electronic communication channels. Non-electronic means of transmitting information include prints such as letters, memo, etc. orals, drum beats, fire lighting, whistling, etc and all ancient methods of information transmission including prints are non-electronic means of transmitting information.

MODES OF RECEIVING INFORMATION

When information is transmitted from a source to the destination, the receiver of such information could receive it in any of the following modes:

1. AUDIO - This is a model that permits the receiver of information to listen to the content of information disseminated at anywhere through a device that produces sound. All methods of transmitting information that enables the receiver to hear sound from the sender utilize audio mode. Examples of audio mode include radio, telephone conversation, oral, beating drums, whistling, and town crying.
2. VISUAL- This is a mode of receiving information through a form that can be read or looked at. The receiver does not require an additional device to read such information when they are transmitted. This includes all methods of information transmission that enables the receiver to see and read the transmitted information. Examples are prints, email, telex, fax, internet, gem, fire lighting, and drawing diagrams.
3. AUDIO-VISUAL – This mode combines the power of audio and visual modes to deliver information that is more understandable to the receiver. These include all methods of disseminating information that enables the receiver to see and hear the transmitted information. Examples of audio-visual modes include television, making representation, satellite communication, internet, and GSM.

EVALUATION:    1. Discuss the two classes of means of transmitting information

2. Mention and explain the three modes of receiving information

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively