Learning Activity 1 - Grade 9, 1st Semester

Learning Activity 1

Communication equipments

1. Competency Standards
Describing the parts, functions and relationships parts of today's communication systems (signal transmission, storage and conversion)

2. Basic competence
Explain the working principle of the traditional and the present communication systems

3. Indicator

• Mention other types of traditional and modern communication equipment based sound, light, and sign;
• Illustrates the working principle of the types of communications equipment based on the systems approach, and
• Explain the working principle of the types of communications equipment based on a systems approach.

4. Material


A. Traditional and Modern Communication Technology

Humans are social beings and individuals. As social beings, humans need to interact amongst communication well. Thus, human beings seek and create systems and tools to interact and communicate, from the picture (portrait shape), sign (hand, smoke, and sound), letters, words, sentences, writing, letters, up to telephone and internet usage.

The development of communication technologies can be grouped into traditional and modern communication technology.
The characteristics of traditional communications technologies, namely:
- direct
- Uses symbols with locally agreed.
- From its shape, tend to have large size

The characteristics of modern communication technologies, namely:
- Indirect
- Has a wide range or even global.
- From the shape, size is more modest.

Traditional communication devices are still commonly used among : kentongan, drum, bells.
The reason the use of traditional communication tools are:
- Can be done by anyone,
- Low cost, and
- Easy to make
Modern technology has always been dependent on electrical energy (fuel, solar, wind etc.). This will be a problem, especially in remote areas (villages slopes of the volcano, small islands).

B. Communication Systems

   Communication can be done directly or indirectly. Examples of direct communication is face to face talks. The talks are usually carried out indirectly by reason of distance, then we need the media or devices such as telephone and say we do not direct communication.
Communication system is a process of formation, delivery, receipt, message processing that occurs in a person and or between two or more people to convey a particular purpose.

Communication comes from the Latin: comunicare that means to bring together or share it with. According to Simons (1976), communication is always associated with the presence of one message or information sent by a particular source to the receiver via a particular medium, or so-called communication in the context and specific situation to achieve the goal. Communication is a process when someone is moving the trigger to change the behavior of others.

There are 5 components in the interplay of communication, namely:
a. communicator is sending a message,
b. message that is sent to receiver of information,
c. channel or media communique,
d. communicant of the recipient,
e. the impact of purpose, change or effect.

     Five of the above components, we can simplify again into: the message sender, message content, and the recipient.
Communication process will basically take place starting from the sender's idea, translated into a symbol that implies, and sent through a medium to the recipient, after which the receiver gives feedback. The process can be described as shown in the following scheme.

 

         Figure 1 The mechanism of communication

C. How to Communicate

       The following are things that are related to ways to communicate:

 
1) Listening
2) Statement
3) Openness
4) Sensitivity
5) Feedback

D. Obstacles or constraints in communication
Things that could be obstacles or barriers in communication include:
1) Interest
2) Emotion
3) Hostilities
4) Charism
5) The experience of the past
6) Environment

E. Working Principle of Communication

Figur 2 The working principle of communication

     Communication mechanism is a process that occurs from sending messages to feedback.

       The working principle of communication equipment through 3 major stages, such as the scheme above :
- Input
- process
- Exodus

Here are some of the existing communication equipment:
1) Personal Stereo
2) Television
3) Phone
4) Pager
5) Facsimile (Fax)
6) E-mail
7) Mobile

F. Types of Communication

       Communication can be divided into three types:
1. Oral communication (voice);

 a)  Advantages
• Feedback can be received directly.
• Listeners can ask if it is not clear.
• Messages can be expressed

b)     Disadvantages
• Time a lot.
• Often does not bring results
• No uniform

2. Written communication (symbol)

a) Advantages
• Can be stored, recorded.
• Can be prepared with care.
• Uniform.
• Wide range.
• The cost is relatively inexpensive.

b) Disadvantages
-  News writing spend a lot of paper.
- News expressed poorly, if the sender of the message is not an effective writer.
- The feedback is not received immediately.

3. Communication cues (signs)

a) Advantages
• Guaranteed confidentiality.
• The cost is relatively inexpensive.

b) Disadvantages
• Limited to certain circles.
• The possibility of in-terpretasi large.

TASK 1

1. Give some examples the tools of traditional and modern communication (based on light,  sound and sign)
2. Explain the meaning of the communication system!
3. Mention five important components in communication with the telephone cable!
4. Mention the ways of good communication!
5. List the obstacles that can impede communication!
6. Explain the mechanism of communication!
7. Mention the tools that can be used to communicate!
8. Mention the types of communication!     
9. Mention the advantages and disadvantages of this type of communication!
10. Explain how the working principal of communication!