information about ICT

About input device

input device is any hardware device that sends data to the computer, without any input devices, a computer would only be a display device and not allow users to interact with it, much like a TV.

there are many kinds of input device such as 

-Joystick

-Touch pad

-Webcam

-Touch screen

-Keyboard

-Mouse

Keyboard

there are many type of keyboard but the best position to use it The upper arms should be relaxed and by your Side, your elbows bent at a right angle
(90 degrees) and your wrists straight. 

                                    MOUSE

The mouse should be at the same level as the keyboard

You may want to change position with your keyboard

The button on the mouse can be change in the windows control panel to accommodate the use of a left-handed mouse

                                Monitor

The monitor is the piece of computer hardware that displays the video and graphics information generated by the computer through the video card.

               Distance

It’s depended on your vision, your age and the size and the resolution on your monitor. Studies have found that monitor distance should be 60-90 cm. this is why its difficult to recommend one specific distance

Height and location

The monitor should be in the front of you with the top of the monitor just below eye level, because if you put it higher than your eye level its can cause you pain and neck discomfort

Glasses and bifocal

Glasses and Bifocals can significantly affect how your monitor should be positioned. If only the lower portion of your glasses will allow you to see the monitor in focus, then obviously the monitor should be located at a height that will allow you to maintain your head at a comfortable vertical position which does not go beyond 90° (i.e. bending your head back). This will likely mean placing the monitor at a lower elevation than for someone with contacts or normal vision. Depending on your vision levels

LIGHTING AND GLARE

To test for glare, turn off your monitor. If the screen provides reflections, you have glare. Since this glare is caused by light shining directly onto your screen, check its source. If it is a window, this can be corrected by positioning your monitor so that your line of sight is parallel to the window or cover the window with vertical blind

FOR MORE INFORMATION YOU CAN CLICK THE LINK BELOW

-computer hope

-pc support

-osha

-ergo canada

-osha