Output Devices Unit 7 Task 1

KEYBOARD Keep this directly in front of you and within easy reach.

MONITOR SCREEN Keep this level with your eyes. Don’t have it level with the desk. Make sure it is flicker- free, and that you can read everything easily. Avoid any glare from the window.

LAMP Make sure this lights your work and not the screen.

COPYHOLDER Don’t get a stiff neck. Use this when you enter a lot of data.

CHAIR This should be adjustable and provide good back support.

FOOTREST Use this if your feet do not rest flat on the floor.

PRINTER This should be more than a metre away from you and as quiet as possible.

Task 2 Great Twice much QuietLessFastBest Good A bit more QuietExpensive Relatively slow Better NoCheapNoisyCheapSlowLow Laser Inkjet Dot- matrix ColourPrice Noise level Running costs Speed Print quality TypePrinters

Twenty-two inches is a common monitor size. A dot pitch of 0.31mm is better than one of 0.25mm. A maximum resolution of 1600 x 1200 is better than 1280 x A 17-inch monitor is 17 inches wide. You can change the picture using controls on the screen. A refresh rate of 85Hz is better than one of 75Hz. The price of a monitor depends only on the size. The monitor uses less power because of the Power-Saver feature. Task 4 How to read a monitor ad T F T T T F F F

Price Screen size Aperture grill pitch Maximum resolution The price mainly depends on the screen size. Common monitor sizes are 14-inch, 15-inch, 17-inch, and 21-inch. The price also depends on aperture grill pitch, resolution, and the number of controls. The size of the screen is the diagonal distance from one corner to another. The actual area for images is smaller than this. The controls the space between the dots which make up the image. The less space between the dots, the better the display. Most monitors offer 0.28mm dot pitch but some go as high as 0.31mm or as low as 0.25mm. The quality of the display depends on the number of dots which make up the image. The more dots, the better the display.

Refresh rate These are international standards to control harmful signal. The monitor refreshes the image on the screen all the time. The faster this happens, the less the screen flickers. You should have a refresh rate of at least 72Hz. Safety standards Power-saving feature On-screen menu The power the monitor uses automatically reduces when it is not in use. Digital controls on the screen allow you to adjust the image.

Do you need to print on multi-part forms ? Buy a dot-matrix printer. Do you need to print in colour ? Do you need a fast printer? Buy a colour laser printer. Are print speed or quality important ? Buy a colour laser Inkjet printer. Buy a mono inkjet printer. Buy a mono laser printer. YES NO YES NO To choose a printer

Moaz Marghoob Hasan Husen Abdulelah Mohd. Mohammad Al-Najdi Mohammad Al-Najdi Teacher By : Kingdom of Saudi Arabia General Organization For Technical Education and Vocational Training College of Technology At Madina Munawara