With the presence of this technology work, the conventional processes began to be abandoned by society. The sophistication of this product cannot be denied since all segments of life are touched by this technology product from milking activities to war strategy. This product is able to overcome the obstacles of space and time faced by humans. Thus the teacher is not the only source of learning for students. Computers and multimedia (1969 and popular 1992) seemed to make the world just a fist. The philosophy that states who control the information then he will rule the world.
Occupational health and safety is an aspect that should be the first concern of any activity, including when working with a computer. Research has revealed that working with computers can lead to health and even safety disorders. Therefore, health is an aspect that should be a concern when working with computers.
Research has been done concluded that computer users can suffer from a headache, muscle pain, and bone especially shoulder, wrist, neck, back, and lower waist. In addition, the use of the computer can still be attacked by other diseases such as tingling, body swelling, limbs stiff, kidney pain, red eyes, watery, pain, and even visual disturbance.
The position of the body, the position of computer equipment, room lighting, and environmental conditions greatly affect health, safety, and comfort when working with computers. From the safety side of work, must realize that the computer used is connected with electricity that has high voltage. So with that should try to prevent the risk of electric shock. For this purpose, it is necessary to regulate the electrical cables such that they avoid electrical shocks, and should also pay attention to cables from possible short-circuits that may cause fire and damage to computer equipment. Therefore it should be noted the following:
Adjusting the body position
That the position of the body when working with the computer is very influential on health. By knowing the position of the body that meets the requirements of health, they can set the computer position and support in order to provide a sense of comfort.
- Head and neck position
when working with the computer, the head and neck position should be upright with faces facing
directly To the screen monitor. The neck should not bend or catch because this can cause pain in the neck.
- Back position
the good back position when using the computer is the upright back position, no
tilted to the left or right, not bent and leaned too tilted back. To get a good back position, should be supported with a good seat and comfortable.
- Position of shoulder
a good shoulder position is the position of the shoulder that is not too raised and not too down. When the muscles in the shoulder are still tense, this means the shoulder position is not correct.
- Arm and elbow position
a good arm position as if to type and use a comfortable mouse. Each person has its own comfortable position. A good arm position is when the hand is on the side of the body, and the elbow forms an angle greater than 90 degrees.
- Foot position
at the time of working with the computer, the feet should be placed on the floor or footrest with the entire foot to touch the floor and elbows that form an angle of not less than 90 degrees.
computer monitors generally use picture tubes (CRTs) that can emit high enough light intensity to be accepted by the human eye. Therefore, parts of this device must have an anti-radiation screen, in order to avoid damage from the eye. To reduce complaints on the eyes, there are a few things to note.
- Place the monitor in such a way that the monitor screen does not reflect
light from other light sources.
- Put the monitor lower than the eye Horizontally line, so as not to hold or duck
- Adjust the monitor light so it is not too bright and dark
- Frequently wink to keep the eyes dry. Every now and then looked out into the room.
The Central Processing Unit
Parts of this computer device should not be in direct contact with the hand (wet) because the flow of electricity that is on the central processing unit can sting the human.
- Wet hands either by water or sweat should not directly come into contact with the central processing unit
- The flow of electricity on the central processing unit can cause a sting.
- Computer cable
Research shows that the position of the keyboard is one-factor causing muscle and joint pain. The cause of muscle and bone pain caused by the keyboard is usage
certain fingers for a long time.
- void spilling water on the keyboard which may cause:
- Keyboard hangs/damages
- Keyboard mossy yellow-yellow and not beautiful
- Short relationship