Wednesday, February 25, 2009

Questions to be answered.

1. What is the reason for technicians to wear special wrist grounding straps?

=The safety wrist strap with grounding cord (integrated 1 MOhmresistor) for the derivation of electrostatic charges, which canadhere to persons at ESD work stations. The strap guaranteesconstant earthing and therefore avoids electrostatic charging atpersons. An ungrounded person causes capacity changes whenmoving, which could lead to spikes at worst case. Those spikesagain are able to damage or destroy electronic componentsNormally dangerous body voltages which may destroy electro-nic components are derivated when a person touches conducti-ve table covering. Charging caused by insulating floors, cloth andchair seats also have to be discharged. Furthermore there is nopermanent contact to the floor when the person is sittingTherefore an additional earthing via wrist strap is necessary.

http://www.canespa.de/catalog/File/hk/en/Seite26-28.pdf

2. After installing a new computer component why is it important to obtain the most current driver for it?

=

3. What are the steps required to install a peripheral device?

=it doesn't work for all device, only for standard ones. If you have a standard type device then just follow instractions, choose automatic and OS will fine it. If it didn't work you will need a driver. Which you can find on manufacture website. Usually it has instructions.
http://www.wikianswer.com/

4. If a newly installed peripheral device does not function properly what steps can be taken to correct the problem?

=But it can be because of many different reasons. First, the device doesn't work properly; second, the user remove drivers; third, bug in the software and so on. If device is working properly, what you can do is turn everything off. Then start the pc, wait while it's booting up. After you logged on and windows started turn your device. If nothing was broken it will work again.
http://www.wikianswer.com/

5. Explain the technique used to help protect data on a hard drive when doing a clean install?

=One of the techniques available to help protect data is to divide the hard drive intomultiple partitions. With a clean install, many technicians prefer to create one.
http://eskilstuna.se/upload/85680/Svar%20kapitel%202.pdf

6. Explain what a software patch is.

=A patch is a small piece of software designed to fix problems with or update a compyter program or its supporting data. This includes fixing bugs, replacing graphics and improving the usability or performance. Though meant to fix problems, poorly designed patches can sometimes introduce new problems (see software regressions).
http://en.wikipedia.org/wiki/Patch_(computing)

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