COMPUTER FUNDAMENTALS

COMPUTER MEMORY

•RAM IS MADE UP OF SMALL MEMORY CHIPS THAT FORM A MEMORY MODULE.•THE HARD DRIVE CAN BE COMPARED TO LONG-TERM MEMORY AND RANDOM ACCESS MEMORY TO SHORT TERM MEMORY•IF YOU ADD RAM TO A COMEPUTER IT INCREASES PREFORMENCE

HARDWARE MAINTENANCE•TO CUT DOWN ON COMPUTER REPAIR IS THROUGH PREVENTATIVE MAINTENANCE PEROFRMED ON A REGULER SCHEDULE.

•YOU SHOULD CLEAN YOUR COMPUTER EVERY 3-6 MONTHES if in a dusty environment clean often

• dust and ink from inexpensive paper can affect the printers rollers.

INKJET PRINTER•After a lot of usage dry ink accumulates on the print head of the printer…….this will affect the print quality

•Inkjet printers have a self cleaning mode that is accessed with a panel control…if it does not work you have to use a flush dirt and debris to unclog it.

LASER PRINTER

•Laser printers should be cleaned when quality deteriorates or when you change the toner cartridge.

•USE A PRINTER BRUSH OR A GOOD PAINT BRUSH AND LINT-FREE CLOTH TO CLEAN INSIDE THE TONER OPEINING

•DO NOT TOUCH ANYTHING SHINY BECAUSE IT MIGHT BE HOT OR CONTAIN A CHARGE

KEYBORADS

•CHOOSING A KEYBOARD IS COMPILCATED….THE PERSON USING IT SHOULD CHOSE IT.

•ERGONOMIC KEYBOARDS ALLOW FOR O MORE NATURAL POSITING OR YOUR ARM AND HANDS

•WIRELESS REDUCES THE CLUTTER OF UNSIGHTLY WIRES AND OTHER CABLE PROBLEMS AND IMPORVES MOBILTY

MOUSE•A VARITY OF MOUSE DEVICES ARE AVAILABLE, INCLUDING WIRELESS, OPTICAL, AND COMBINATIONS.

•TOUCHPAD ARE ANOTHER POITNTING DEVICES YOU CAN USE INSTEAD OF A MOUSE

COOKIES•A COOKIE IS SMALL TEXT FILE THAT A WEB SITE USES TO IDENTIFY A SPECIFIC COMPUTER

•COOKIES ARE NOT A THREAT

•COOKIES ARE USED TO GATHER INFORMATION

SPECIALIZED MAINTENANCE•YOU CAN PROVIDE ROUTINE MAINTENANCE AS DISCUSSED IN THIS LESSON.

•REPLACING THE PROCESSOR

•REPLACING OR ADDING A HARD DISK

TEMPORARY FILES

•TO FREE MEMORY FOR OTHER PROGRAMS

•TO ACT AS A SAFETY NET TO PRVENT DATA LOSS

•FOR PRINTING