2.00 Understand Computer Fundamentals. Unit Objective: 2.02

What Are Peripherals? A peripheral device is one that is attached to a computer in order to expand its ability to perform more tasks Are generally external Some of the more common devices are printers, disk drives, scanners, microphones, speakers, and cameras The devices can be input and output devices Some input devices are: mouse, joystick, keyboard Some output devices are: monitor, projector, speakers Some devices function as input and output are: media card readers, digital camcorders, digital mixers, and touch screens

Peripheral Devices Printer: provides a hard copy of a document Digital Pen: captures and saves handwriting to the computer as you write on special digital paper. Scanner: allows the user to computer to make copies of photos and other documents Tablet: small, light pc’s that function like portable writing tablets

Peripheral Devices (Cont’d.) Joystick: a handheld device that is often used with games Headset: designed to fit around the head to listen to spoken or recorded sounds. Digital Camera: captures and stores still images as digital data

Types of Printers Dot Matrix Uses a pattern of dots to form images on paper Less expensive and images not as clear Inkjet Better quality of printed document Uses ink cartridge Less expensive than laser Laser Best quality of printed document Uses laser beam and toner to produce images Most expensive Quick

Computer Care

Maintain Your Computer System Read your manual before operating your computer Make sure all plug-ins are secure at all times Keep the surrounding area dirt and dust free Keep eraser gum, food, and liquids away from the keyboard Do not stick pens or pencils into the drives on the CPU Keep your fingers and hands free of oily products, like lotion, and some hair products Clean the monitor with electronic wipes and do not touch it with your fingers

Proper Computer Care Keep food and drinks away from the computer and keyboard. Avoid dusty locations. Use a surge protector. Keep away from magnets. Do not block vents on the CPU. Avoid bright sunny locations. Do not move the computer while it is in use. Always exit programs properly. Use a virus check program on a regular basis.

Proper Diskette Care Do not remove from drives while drive is running or light is on. Avoid contact with magnets and electromagnetic fields. Keep disks stored in a clean, cool and dry place with a protective cover. Keep protective metal slider in place. Use a virus check program on a regular basis. Avoid hot and cold locations.

Proper Care of Printers Avoid cold, hot, and dusty locations Always use the correct ink or toner replacement Always have the proper printer cable connected to the computer Never pull paper out of a printer in motion Do not turn off the printer while printing Read the instructor’s manual before operating a printer Always use the proper type of paper in the printer

Proper Care of a Digital Camera Clean regularly Do not subject to knocks, vibrations, and magnetic fields, smoke, water, steam, sand, or chemicals Handle all moving parts with care Turn camera off before removing or disconnecting power source or cable or removing battery or memory card Don’t store or use in humid, dusty or dirty places Keep away from extreme hot or cold temperatures Avoid direct sunlight for long periods Avoid scratches with sharp or hard objects Keep dry and free of condensation Store correctly when in in use Don’t drop in water

Proper CD-ROM/DVD Care Keep CDs stored in a clean, cool and dry place with a protective cover Avoid touching the back side of the CD to avoid scratches Avoid hot and cold locations Make a back-up copy of your programs and files Insert into CD-ROM drive properly; label facing up Only write on CD’s with a CD marking pen on a label or the correct side of the CD