Lesson 1 on Preventive Maintenance

1. COMPUTER SYSTEM
SERVICING
Technology and Livelihood Education 10
MODULE 1

2. LOOKING BACK : TRUE / FALSE
1.Windows Firewall filters information coming to your system from the Internet
and blocking potentially harmful programs or network-based threats.
• 2. Access Panel is a component of Microsoft Windows that provides the ability
to view and change system settings.
• 3. User account is an identity created for a person in a computer system.
• 4. Remote screen refers to a software that allows a personal computer's
environment to be run remotely on one system, while being displayed on a
separate client device.
• 5. Container is a subdivision within an Active Directory into which you can
place users, groups, computers, and other organizational units.

3. PREVENTIVE

4. MAINTENANCE

5. PREVENTIVE MAINTENANCE
•is a regular and systematic inspection,
detection, and correction of possible
problems in order to prevent future
system failures on a working device.

6. THE FOLLOWING ARE ITS AIMS:
•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.

7. TYPES OF PREVENTIVE
MAINTENANCE
1. Passive Preventive maintenance
2. Active Preventive Maintenance

8. PASSIVE PREVENTIVE MAINTENANCE
it consists of
precautionary
activities to protect
the computer from the
environment.
Like the following:
• Using power-protection devices
such as Uninterrupted Power
Supply (UPS) and Automatic
Voltage Regulator (AVR).
• Clean and temperature-
controlled environment.
• •Preventing excessive vibration.

9. ACTIVE PREVENTIVE MAINTENANCE
it consists of activities
that promote a longer
trouble-free life for the
device
Like the following:
• • Periodic cleaning of the device
and components.
• • Performing regular file back-up.
• • Scanning of malwares (virus,
spyware, and worms).
• • Disk cleanup and file
defragmentation of hard drives.

10. MAINTENANCE TASKS
HARDWARE
• Checking cable, component, and peripherals
conditions.
• Replace or repair component that show signs of
excessive wear.
• Keeping components clean and on peak
condition.
SOFTWARE
• Review security settings, software, and driver
updates.
• Scan and update antivirus or malware software.
• Defragment hard drives
• Scan drives for errors.
• Remove unwanted or not used programs

11. SAFE ENVIRONMENT FOR
DEVICES
COMPUTER SYSTEM SERVICING

12. THE FOLLOWING ARE SOME TIPS FOR CREATING
A SAFE ENVIRONMENT FOR YOUR DEVICES
• Place the devices and components in a cool and dry place away from direct
sun light. Ideal operating temperature for a device environment is 23°C/73°F.
• Always use an Uninterruptable Power Supply (UPS), Automatic Voltage
Regulator (AVR) or power surge protector to protect your devices from
electrical spikes or power interruption.
• Provide a good airflow for the system unit to prevent it from overheating.
• Keep your devices from Electromagnetic Interference (EMI), which can cause
a degradation of electronic circuitry inside the device or circuitry failures

13. DEVICE CLEANING