IC3 GS3 Standard COMPUTING FUNDAMENTALS Module Objective 1.2: Maintaining and Solving Common Computer Problems

Objectives: Identify importance of protecting computer hardware from theft or damage. Identify factors that cause damage to computer hardware or media. Identify how to protect computer hardware from fluctuations in power supply or outages. Identify common problems associated with computer hardware. Identify problems that can occur if hardware is not maintained properly. Identify maintenance that can be performed routinely by users. Identify maintenance that should ONLY be performed by professionals. Identify the steps required to solve computer-related problems. Identify consumer issues related to buying maintaining and repairing a computer.

Keeping Your Hardware Safe Lock computer terminals to desks or lock rooms Notebooks/laptops in locked drawer/cabinet Padded carrying bags to transport laptops safely

Protecting Data Save active files frequently Back up important files Use antivirus software Use firewalls A combination of software and hardware that creates a buffer between an internal network and the Internet to prevent unauthorized access Encryption is a secure process for keeping confidential information private.

Keeping hardware/media safe from environmental factors Keep disks away from magnetic and electrical fields (in televisions and monitors) Avoid extreme temperatures - A temperature range of 68 to 75 degrees is optimal for system reliability. A high level of humidity can cause computers to short circuit, resulting in the loss of data and damage to hardware.

Protect from fluctuations in Power Supply Electrical power failure can destroy data and equipment: Use surge protectors protects against power spikes that can destroy components Use Uninterruptible Power Supply (UPS) prevents damage and data loss during power failure www.youtube.com/watch?v=RBfZX77KhZw

Routine Maintenance Make regular visual inspections of computer system to look for problems Keep computer components clean Perform routine “internal” maintenance run utility programs that clean up remove unneeded files from hard drive

Troubleshooting Steps 1. Recognize the problem. 2. Replicate the problem by reproducing the steps that cause the problem consistently. 3. Attempt basic solutions to correct the problem, such as restarting the hardware or checking cable connections. 4. Look for available help and advice in manuals, or access a technical support Web site or telephone number. 5. Communicate the problem accurately to the support technician. 6. Follow the instructions the technician gives you carefully. 7. Confirm that the problem has been fixed. 8. Avoid similar problems in the future.

Buying a Computer Make a list of tasks you want to accomplish Check company policies or standards Make sure software is compatible Consider expected useful life of the components Buy what you need

Comparing CPU’s Different types of computers use different central processing unit (CPU) chips. Mac’s use G4 or G5 PC’s use Intel Pentium, or Core duo chips The amount of RAM (4 GB) also affects processing speed Hard Drive – 500 GB

Comparing Computer Models Let the tasks you want to perform and the environment be your guide Consider peripherals and storage devices needed

Upgrading Computer Hardware Adding more RAM makes a processor run faster Expansion cards with 128K to 512K or more are available Hardware peripherals (new keyboard, mouse, or printer) easy to install Plug and Play capability

Bundled Software Sometimes software comes with a new computer fully operable and can be registered and used for the life of the computer Other software offered on a trial basis you must pay a fee to continue to use the program after a certain date

Warranties & Technical Support Most have a limited warranty ensures defective components will be repaired or replaced during that time Extended warranties offered at additional cost Register new equipment so that the manufacturer’s warranty will be in effect