Toshiba Tecra 8000 Tecra 8000 Users Guide - Page 28

4 To Begin Selecting a place to work chair. Whichever type you choose, use the following guidelines to adjust your chair for maximum computing comfort. Below eye level Footrest Correct posture and positioning of the computer Approximately 90° angles ❖ Position your chair so that the keyboard is at or slightly below the level of your elbow. You should be able to type with your shoulders relaxed and your forearms parallel to the floor. If you are using a conventional chair: ❖ Your knees should be slightly higher than your hips. If necessary, use a footrest to raise the level of your knees and ease the pressure on the back of your thighs. ❖ Adjust the back of your chair so that it supports the lower curve of your spine. If necessary, use a cushion to provide extra back support. Lower-back support cushions are available at many office supply stores. ❖ Sit with your back straight so that your knees, hips, and elbows form approximately 90-degree angles when you work. Do not slump forward or lean back too far. Lighting Proper lighting can improve the readability of the display and reduce eyestrain. Part I: Getting to Know Your Computer