ict

• Preventive Maintenance


  Regular and systematic inspection, detection, and correction of possible problems in order to prevent future system failures on a working device
• Passive Maintenance


  Precautionary activities to protect the computer from the environment
• Active Maintenance


  Activities that promote a longer trouble-free life for the device
• Purpose of preventive maintenance


  • Ensures that the device operates properly
  • Lessen the likelihood of a system crash or parts failures
  • Prolong the life of the device and its individual components
• Uninterrupted Power Supply System


  Battery backup that provides backup power when regular power source fails, or voltage drops to an unacceptable level
• Cleaning Tools


  • Variety of necessary and vital tools and products created and designed in various materials to meet a cleaning need and used to clean easily, effectively, and efficiently
• Lint Free Cloth


  Used to clean different computer components without scratching or leaving debris
• Cable Ties


  Used to bundle cables neatly inside and outside of a computer
• Cleaning Solution


  Mixture of water and alcohol to disinfect and clean the surface of the device
• Brush


  Essential for cleaning the back part of a computer chassis or case
• Heat is the worst enemy of the computer devices
• 23°C is the ideal operating temperature for a device or computer environment
• System unit must be cleaned annually
• Good airflow for the system unit help prevent overheating
• Heat, dust, and humidity deteriorate components
• ESD tools during maintenance inside a system unit protect us against static electricity
• Do not pour the cleaning solution to the keyboard and other hardwares
• Recommended ways for cleaning the LCD/LED/AMOLED monitor screen

  • Cleaning solution (water-vinegar/alcohol-water)
• Unplug the system unit from the power source as a safety precaution should be taken first before working on the computer chassis
• Do not use excessive force when cleaning the internal parts of the system unit
• Dirty surfaces are a common cause of mouse sensor lens problems
• Filthy keyboard lead to stuck or jammed keys
• Cable management


  Improved airflow and aesthetics
• Dust and debris can accumulate inside the unit over time due to fans sucking in air
• CMOS Battery


  Stores BIOS settings and system clock data
• Windows Update


  Provides feature enhancements and security updates
• Windows Update Assistant


  Used to receive updates and patches in windows and enables users to obtain bug fixes and new features for their version of Windows
• Monthly Rollups


  Include both security and reliability updates in a single package; important updates
• Optional updates


  Enhance the user experience and can be installed manually
• Service Packs/Cumulative Updates


  Updates that includes additional fixes for problem found internally since the release of the product
• Non-Critical Updates


  Make Windows systems run smoothly
• Manually remove the installed update if it is found to be causing issues
• Windows Settings via start menu windows Update can be accessed in Windows 10
• Windows Update can be accessed in Windows 7, 8, and 8.1 via the Control Panel
• Malwares are typically delivered in the form of a link or file over email on a computer
• Defragment and Optimize Drives


  Windows utility software that rearranges fragmented data to maximize the storage space in the disk; optimize her HDD's performance
• 10% is the percentage advised to defrag the hard disk drive
• Analyzing the disk to check fragmentation can help you manually defragment HDD
• Disk Clean Up


  A utility software that deletes unnecessary files from a storage to free up space on the drive
• Recycle Bin


  Disk clean up that used storage space due to accumulated files