Extensions = .--- = Counterpart
+ impress = .sdd = MS Powerpoint
+ base = .sdb
+ app. document = .sdw = MS Word
+ master document = .sgl = MS Word
+ math = .smf
+ calc = .sdc = MS Excel
+ draw = .sda = MS Office
Sabado, Agosto 27, 2011
Sabado, Agosto 6, 2011
Lesson 3:PC Care and Safety Procedures for Users
1.How to take care of your PC
a.Computers need a good working working temperature to work properly.They need to be placed in a cool dry place.You can maintain good temperature with an electric fan or air conditioning.
b.All the cables and connectors must be tied together to keep them away from walkways to avoid accidents.
c.Avoid eating in front of a computer.Food bits attract insects like ants that can penetrate the hardware and cause malfunction.Spilled drinks,on the other hand,causes short circuits.
d.Always use an AVR (automatic voltage regulator) to regulate electricity.Too much electric voltage cause the unit to short.Also,turn off computers during lightning as these can cause electric surges to the computer.
e.Do not bump or drop the computer peripherals or components as any damage may cause them to malfunction.
f.Avoid clutter around your PC.Use soft cloth in cleaning your computer to avoid scratches.
g.Always scan for computer viruses.Internet connection and external storage devices often carry viruses that could harm your files and cause software malfunctions.
2.Good working habits
a.Tap on keys and mouse buttons gently.
b.Avoid long,uninterrupted periods of typing.You may take short breaks every 20 minutes.
c.Avoid staring at the monitor too long.Take vision breaks (stare at something green,etc.) and do eye exercises.
3.Proper workstation design
a.Position in a well-ventilated,comfortable room.
b.Use an adjustable workstation and an ergonomic computer chair.
c.Place the monitor 16 to 24 inches away,at eye level or slightly at a lower angle.Tilt the monitor or adjust the light source.Adjust the brightness and contrast settings.
d.Use extendable/retractable legs of the keyboard.
e.Place mouse where it is easily accessible by your dominant hand.
f.Use a document holder to minimize vertical head movements.
4.Proper posture
a.Sit up straight and put the feet flat on the floor.Use a footrest if needed.
b.Position your lower arms parallel withe floor and level to your keyboard,with elbows at your side.
c.Keeps wrists straight.
d.Do not lean into the monitor,but sit close enough to the keyboard and the mouse to stay relaxed.
a.Computers need a good working working temperature to work properly.They need to be placed in a cool dry place.You can maintain good temperature with an electric fan or air conditioning.
b.All the cables and connectors must be tied together to keep them away from walkways to avoid accidents.
c.Avoid eating in front of a computer.Food bits attract insects like ants that can penetrate the hardware and cause malfunction.Spilled drinks,on the other hand,causes short circuits.
d.Always use an AVR (automatic voltage regulator) to regulate electricity.Too much electric voltage cause the unit to short.Also,turn off computers during lightning as these can cause electric surges to the computer.
e.Do not bump or drop the computer peripherals or components as any damage may cause them to malfunction.
f.Avoid clutter around your PC.Use soft cloth in cleaning your computer to avoid scratches.
g.Always scan for computer viruses.Internet connection and external storage devices often carry viruses that could harm your files and cause software malfunctions.
2.Good working habits
a.Tap on keys and mouse buttons gently.
b.Avoid long,uninterrupted periods of typing.You may take short breaks every 20 minutes.
c.Avoid staring at the monitor too long.Take vision breaks (stare at something green,etc.) and do eye exercises.
3.Proper workstation design
a.Position in a well-ventilated,comfortable room.
b.Use an adjustable workstation and an ergonomic computer chair.
c.Place the monitor 16 to 24 inches away,at eye level or slightly at a lower angle.Tilt the monitor or adjust the light source.Adjust the brightness and contrast settings.
d.Use extendable/retractable legs of the keyboard.
e.Place mouse where it is easily accessible by your dominant hand.
f.Use a document holder to minimize vertical head movements.
4.Proper posture
a.Sit up straight and put the feet flat on the floor.Use a footrest if needed.
b.Position your lower arms parallel withe floor and level to your keyboard,with elbows at your side.
c.Keeps wrists straight.
d.Do not lean into the monitor,but sit close enough to the keyboard and the mouse to stay relaxed.
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