System Maintenance | What is active and passive preventive maintenance?

Maintenance of PCs:

Preventive Maintenance can be of two types: 

a) Active preventive maintenance

b) Passive preventive maintenance  

Active preventive maintenance procedure 

 It describes several procedures to clean and lubricate all the major components, cleaning all boards, connectors, contacts etc. 

 It also describes similar procedures for different peripheral devices such as HDD, FDD, keyboard, printer, monitor etc. 

 It includes performing backups, antivirus and antispy ware scans.

 Active preventive maintenance procedure: Cleaning a system

 Regular and through cleaning of the system removes any layer of dust and benefits the system in the long run.

 Dust acts as the insulator, which prevents proper system cooling, 

 Excessive heat shortens the life of system components.

 Dust can contain conductive elements that can cause partial short circuit in the system. Other elements in the dust can accelerate corrosion on electrical contacts.

Passive preventive maintenance procedure

 It includes periodic care of external factor which affect working of the PC i.e. mainly providing the best possible physical and electrical environment for the PC to operate. 

 It involves taking care of the system from physical environment and electrical problems. 

 Physical conditions such as temperature, thermal stress, dust and smoke contamination and shock and vibration. 

 Electrical issues such as ESD (Electro Static Discharge), power line noise and RFI (Radio frequency interference)