write down any 4 precautions you need to take while using the computer services
Answers
Here are some things you can (and should) do to stay safe.
Use a firewall. ...
Scan for malware. ...
Stay up-to-date. ...
Educate yourself. ...
Secure your home network and yourmobile connection. ...
Don't forget the physical. ...
Back up.
Answer:
Step 1: Groped a formal approach
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Do not turn it on in the presence of high humidity (over 70%), sudden temperature changes (which could cause condensation) mist (eg. use of aerosol cans, spray cleaners, etc..).
If you hear suspicious noises related to electrical discharges caused by the accumulation of dust inside, immediately turn off and wait for the causes (moisture that binds the dust, making it conductive of electricity) have ceased.
The computer is built to operate for years on the inside of normal office environment: in particular places (garages, yards, basements, kitchens, porches or otherwise exposed to air currents, surges, vibration, oil or aggressive chemicals) must be use a specific computer, designed for industrial uses.
Caution is to use of equipment and connectors in accordance with the safety regulations, adapted to the system in use, avoiding or quickly replacing sockets, plugs, cables that are worn, deformed or not secure a stay in the stable, to avoid sudden shutdowns or too low voltage.
THE COMPUTER IS DESIGNED TO TURN OFF IN THE PRESENCE OF EXCESSIVE HEAT therefore also in the case of obstructions in the flow of air that passes through it, preventing normal cooling circuits.
Look closely at the connectors behind it, which are symbols suitable to sense the specific use: no use, for example, an external audio input (BLUE) to connect the microphone to the PINK hole, GREEN should be used for outputs audio (headphones or speakers).
This document has been prepared with this computer (HP Vectra P3 450MHz 256 MB RAM, 18 GB HD) while listening to some MP3 in the folder D: \ MP3 using a pair of headphones between 9 and 9:30 am of November 19, 2010. When I use it I have not felt any need to turn off, and the operation is smooth and fluid thought the programs used.
To do so, attach the image of the Task Manager that takes the eye to a few basic parameters.
Step 2: Soul time
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Very often, the purchase of a computer does not depend on the actual preparation of the member, but from a commercial boost.
As IT professionals, we need to take responsibility for those unfortunates who often misusing their equipment.
This leads to come into contact with real human cases, we have to deal with discretion and personal sensitivity, as well as a significant professional experience.
I leave it to the memory of each one personal cases we came face (maybe even to solve).
Now it's getting a little soul-searching on our way to a better world, even if only one person at a time.
At last the poor user, careless and clumsy, is convinced of my reasons, and decided to put the PC into the most suitable to its original destination of use.
I understand that often the sale and installation of computers is a big source of income, but this must go in favor of new users, who may benefit in many aspects of the new appliance.
It is notorious as many valuable computer drastically lose value and technical efficiency from improper and clumsy use.
Using a few simple tips even a casual user could handle the basics of computer science.
Everything can be turned into a business relationship in the long term, aimed at finding applications of benefit for both sellers and buyers.
References
Arranging a computer workstation
Arranging a laptop
Cognitive aging research
Make your computer easier
UN recommendations