how to read data from barcode scanner in java Assertive Communication in Software

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In many cases, a PC problem is due to user error or neglect As a technician, you must show users the error of their ways without creating anger or conflict You do this by using assertive communication Assertive communication is a technique that isn t pushy or bossy, but it s also not the language of a pushover Assertive communication first requires you show the other person that you understand and appreciate the importance of his or her feelings Use statements such as I know how frustrating it feels to lose data or I understand how infuriating it is when the network goes out and you can t get your job done Statements like these cool off the situation and let the customer know you are on his or her side The second part of assertive communication is making sure the problem is clearly stated without accusing the user directly: Not keeping up with defragmenting your hard drive slows it down or Help me understand how the network cable keeps getting unplugged during your lunch hour Lastly, tell the user what you need from them to prevent this error in the future: Please call me whenever you hear that buzzing sound or Please check the company s approved software list before installing anything Always use I and me, and never make judgments I can t promise the keyboard will work well if it s always getting dirty is much better than Stop eating cookies over the keyboard, you slob!
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Following a sound troubleshooting methodology helps you figure out and fix problems quickly But because troubleshooting is as much art as science, I can t give you a step-by-step list of things to try in a particular order You ve got to be flexible First, make sure you have the proper tools for the job Second, back up everything important before doing repair work And third, analyze the problem, test your solution, and complete your troubleshooting
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Way back in 2, The Visible PC, you learned the basic parts of a tech toolkit (Figure 2411): a Phillips-head screwdriver and a few other useful tools, such as a Torx wrench and a pair of tweezers You also should carry some computer components Always carry several field replaceable units (FRUs) a fancy way to say spare parts when going to a job site or workstation Having several known good components on hand enables you to swap out a potentially bad piece of hardware to see if that s the problem Different technicians will have different FRUs A printer specialist might carry a number of different fusers, for example Your employer will also have a big effect on what is an FRU and what is not I generally carry a couple of RAM sticks (DDR and DDR2), a PCI video card, a NIC, and a 300-watt power supply
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I keep a PCI video card in my kit because every computer made in the past ten years has PCI slots If you run into a system with video problems, you can almost always simply slap in the PCI video card and discover quickly whether or not the AGP or PCIe video card or card slot is a problem If the computer boots up with the PCI video card but fails on the AGP card, for example, you know that either the AGP card or slot is causing the problem
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Backup
In many troubleshooting situations, it s important to back up critical files before making changes to a system To some extent, this is a matter of proper ongoing maintenance If you re in charge of a set of machines for your company, for example, make sure they re set to back up critical files automatically on a regular basis If you run into a partially functional system, where you might have to reinstall the OS but can access the hard drive, then you should definitely back up essential data, such as e-mail, browser favorites, important documents, and any data not stored on a regularly backed-up server Because you can always boot to a copy of Windows and go to the Recovery Console, you should never lose essential data, barring full-blown hard drive death
The CompTIA A+ certification exams assume that all techs should back up systems every time before working on them, even though that s not how it works in the real world
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