Factors Affecting PC-Operation
PC is a machine with electrical and electronic circuits as well as electromechanical assemblies. For reliable operation and long life of PC, must consider various environmental factors.
The following factors affect the normal working of PC. These factors should be kept within the specified limits or tey to avoid these factor near PC for trouble-free operation.
1> Temprature [10° C - 45° C]
Affects :
Life of IC's and other components.
Encounter excessive chip creep.
Signal traces on circuit board can crack and separate.
Solder joints can break.
Contacts in the system can undergo accelerated corrosion.
Solid-state components such as chips can be damaged.
Temperature generates intermittent problems in electronic circuits
Early failure of electronic components.
Avoiding Temperature :
Install an adequate fan in the power supply or system.
Add an auxiliary fan.
Run PC's only in safe temperature range.
Install Air Conditioner in computer room.
Avoid direct sunbeam in computer room.
Use adequate space for computers.
2> Humidity [60° Relative humidity]
Affects :
Causes corrosion in the contact region, which in turn causes contact problems in the different components.
High humidity in low temperature will cause the surface oxidation effect on metal parts, such as electrical contacts & breakdown of insulation material in a power supplies & monitor.
Low humidity, high temperature and dry weather may create problems with static electricity.
May also generate sticky layer of dust on ICs and components, avoid heat dissipation.
May fails ICs and component.
Avoiding Humidity Problems :
Use dehumidifier.
Install Air Conditioner in computer room.
3> Dust :
Affects :
As dust buids up, entire board can become coated with fine insulating shealth. This avoids heat dissipation and damages ICs.
Reduces life of chips and various components.
It damages Magnetic tape storage of a computer. And causes head crash in Hard Disk.
Dust on read/write head crashes disk surface.
Keyboard may get affected with dust and dirt. It jams the keys and may cause improper functioning of keyboard.
Avoiding Dust :
The computer room must be cleaned regularly.
Clean the computer with dust free cloth.
Use vacuum to remove dust from the keyboard and system board.
Wndows in the computer room must be enclosed with curtains to prevent entry of dust.
Smoking in the computer room must be prohibited.
Use covers on different parts of computer such as monitor, system unit, keyboards.
Use Air Conditioner for computer room.
4> Magnetic Field Effect :
Affects :
Data storage on magnetic storage devices may get affected or corrupted.
May disturb electron beams of CRT monitor, causinf improper deflection.
Can cause permanent loss of data on hard disk.
Avoiding Magnetic Field :
Keep PC away from the Television.
Keep PC away from the Speaker.
Do not keep any permanent magnet or electromagnet near PC.
Do not keep any recording machine near to PC.
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