Computer Maintenance

1. Computer Maintenance Elizabeth Wilmoth Period 2

2. Objectives • Identify problems that can occur if hardware is not properly maintained. • Identify routine maintenance that can be performed by users. • Identify maintenance that should be performed by experienced professionals.

3. Maintenance Issues • You have to keep up on the maintenance of a computer just like you would a car. A computer requires regular maintenance, and if you don’t keep up on the maintenance your computer will sooner or later start to have problems. For example, the performance of a hard disk starts to slow and printer problems may start to occur. The keyboard and mouse can become sluggish and the monitor may not work properly.

4. Keyboard • You should check and clean The keyboard often. Dirt, dust, hair, and food particles can accumulate, causing the keys to jam. Every 6 months you can use a can of compressed air to remove dust from the key board.

5. Mouse • A mouse with a ball can be difficult to move if the ball is clogged. To clean rollers, you need to remove the bottom cover of the mouse. You will probably find dirk or hair in the middle of the roller. Remove as much of the dirt or hair that you can and them put the mouse back together.

6. Printers Cleaning a printer helps prolong the printer’s life. • Turn off the printer. • Use a cleaner recommended by the manufacturer, or a lint-free cloth, and then moisten it with a 50-50 percent solution of water and vinegar. Wring out all excess moisture and thoroughly clean the outside of the printer, making sure that no fluid gets inside the printer. • Never spray aerosol directly onto the printer. • It is not necessary, but consider wearing latex gloves to protect your hands from dirt and other debris.

7. 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. Data stored in RAM is temporary. • When the computer is processing data, it reads and writes to RAM. • If RAM fills up, then the processor continually goes to the hard drive to replace old data in RAM with new data.

8. Preventative Maintenance • All computers slow down as you add and delete files, install and uninstall software and perform normal activities. • You use tools to defragment hard drives, empty Recycle Bin, delete temporary files, and remove cookies.

9. Disk Defragmentation • Occurs when a piece of data is broken up into many pieces that are not stored close together. • The sectors are stored in blocks of nonadjacent clusters, thus creating fragmented files. This will continue until you begin deleting files and adding new ones.

10. Recycle Bin • The Recycle Bin is a holding area for files and folders before their final deletion from a storage device. • You can use special settings to review the contents of the Recycle Bin before permanently deleting the items.

11. Temporary Files Various application programs, such as the ones used in Microsoft Office, create temporary files. This action is used…. • To free memory for other programs • To act as a safety net to prevent data loss • For printing

12. Cookies A cookie is a small text file that a Web sit uses to identify a specific computer. • The file is created or updated on your computer’s hard drive each time that the Web site is visited. • Cookies are not a threat to your computer’s security, they just identify you to the Web server each time a web page is accessed.

13. Specialized Maintenance Internal hardware maintenance or repair that generally should be performed by a computer professional. • Replacing the power supply or opening the power supply case • Replacing other electrical components • Replacing the processor • Replacing or adding a hard disk • Replacing or adding additional RAM

14. Risks of Networked Computing The security of a computer network is challenged everyday by… • Equipment malfunctions • System failures • Computer hackers • Virus attacks