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วันจันทร์ที่ 23 กรกฎาคม พ.ศ. 2550

Should I Make a Backup of My Computer?


Few people that purchase a computer go through the trouble of making a backup on their computer of their applications or data. Backups take more time than people are willing spend on them. Their is one question you should ask yourself? Do I have any valuable letters, spreadsheets, pictures or financial or other data that I will lose if my computer has hardware, operating system, virus or spyware problems which cannot be recovered. If your answer is yes you should make some type of backup on your new computer.

One backup strategy is to make a image of your hard drive when your computer is operating correctly. This way when trouble happens you can restore your image to your hard disk in about 45 minutes. This will give you a fresh start, with no spyware, virus, conflicts or problems. This will restore your computer to the state it was when you created the image. You will lose any information that you created or programs that you installed after the image was created. The advantage is you will have an exact image of your hard drive and can restore your computer in half the time it would take to install Windows XP and all the data a software programs that you would have to other wise have to reinstall. If you are like most people you often misplace your CD's for Windows or software programs. You not need these CD's to restore your image. Symantec Norton Ghost 9 and Acronis True Image 8 are a couple of image programs that we have great success using.

Here are some ideas of where you can save your image. The least expensive way is to make a second partition on your primary hard drive. You should request this be done when you purchase your new computer or you can use Windows XP or a third party program such as Symantec's Partition Magic. You can also use this partition to keep all your documents, spreadsheets, photos or any data without creating an image. This will make it to restore this information should you need to reinstall Windows XP and your software programs. The disadvantage to this is if your hard drive fails you will lose your image or information. You could also make images to your DVD R-W if you have one installed on your new computer. You may have to span your image across more than on DVD-RW disc. Most image programs support this feature. Another option would be to install a second hard drive to create images on. You could do this with an internal or external hard drive. Using internal hard drives you could mount your primary and secondary drives in removable drive housings in open bays. In the event that your primary drive fails you could switch drives from bay 1 to bay 2 and start your computer from your ready to go image on drive 2. You also can have a RAID LEVEL 1 configuration on your new computer. This creates identical contents on both hard drives to protect against data loss due to drive failure. In the event your primary drive does fail the secondary drive would keep your computer running. You would have no down time on your computer. The most expensive option would be a Iomega backup drive. These drives have removable disks that can be inserted or removed from the drive.

With a little effort you can be sure that your computer stays running smoothly with little down time and troubleshooting using the above methods. This will make sure you have a reliable backup of your valuable information.

Written by JR Computers Staff
From: http://www.jronsite.com/article_2.htm

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Quality Technical Support should be included with a New Computer



When you purchase a PC you look for all the bells and whistles you would like to include in you new computer. You are hoping the bells and whistles are also assembled with quality and great performing components. Well when you are looking for a great performing reliable computer most people should be looking to see what type of technical support is provided with their purchase. Even computers with quality are likely to need some technical support during the warranty period. Here are some issues with technical support on new computers.

Qualified Technicians: Technicians should be with good training on the customers computer. Watch out for computer manufactures that hire employee reading scripts to troubleshoot customers computers.

Language Barriers: Nothing is more frustrating than phoning for technical support and trying to communicate with a hard to understand technician. I have heard stories of wrong replacement parts being shipped to customers for repairs. Customers having to phone technical support 2-3 times before they get a technician they can communicate with and make progress on their problems. These are some of the countries that Technical Support for computer manufactures are based from United States, Canada, Ireland and India. It is bad enough to have computer problems without have communication problems with your technical support. It would be wise to purchase a computer with technical support based in a country you would be able to clearly understand and communicate to resolve your problem.

Trying to Phone Technical Support: When telephoning technical support customer have to maneuver through menus and listen to recording pushing buttons on the phone before reaching a technician. This can be a very frustrating experience. When you reach the end of menus it seems you are then put on hold for ever.

Hardware vs Software: Most computer manufactures will only support hardware issues. The truth is if a computer is manufactured with quality hardware most of your problems will be software related issues. Software that is purchased with the computer should have technical support that includes the operating system (e.g.. Windows XP) and software utilities such as anti-virus, firewall, spyware. application software such as word processing, photo editing and games. The computer manufacture should supply technical support phone numbers for each individual software vendors if they do not support the software themselves.

Quality Control: Problems should be kept to a minimum if good quality control measures are taken before shipping. Quality control consists of testing the computer for any flaws after assembly. The problem is some companies do not test every computer. They will test every ten for instance. This could increase the chance that your computer you purchased may sneak by quality control with a defect. You may get a computer delivered to you DOA (Dead On Arrival).

Computer manufactures could take it a step farther and bench mark your computer. This will show you the performance of your computer comparing to similar computers manufactured by competitors. I would imagine some manufactures would decline to do this because they are giving you a great price for your computer using older technology. The bottom line is it may not perform better than the reference computers. Just remember a better performing computer will last into the future longer before having to purchase a new computer again.

Online Support: This is a great option for the more experience computer user to find information about resolving their computers problems on your manufactures web site. Some manufactures offer Online Chat technicians. This is convenient and much cheaper for the manufacture if the customer uses both these options for self help resolving their computer problems. The Cons to these options are - If your computer is down how are you going to get on the manufacture web site for help. Using the chat technician may be hard for people with limited typing skills. It is also hard to try and repair your computer while you have to keep going back to the manufacture web site after rebooting, installing software or drivers.

When purchasing a computer it may payoff to research what type of support your manufacture offers. Things to look for are support in a country where you are able to clearly communicate with the technician. Technical support that does not have phone menus and long wait times for a technician. Support for hardware and software on you new computer purchase. A company that quality checks every computer for defective components, reliability and performance before they ship to their customers. Finally online support is a plus, but make sure the computer manufacture does also offer good phone support.

Written by JR Computers Staf
From: http://www.jronsite.com/article_4.htm

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Windows Vista Tips & Tricks


We've got 15 tips and tricks for enhancing your Vista experience.

By Joel Durham


1. If you hate the look of Aero, click Start/Control Panel/Themes and you can choose a non-Aero theme, such as Windows Classic.

2. Windows Vista's installer can detect serial-ATA (SATA) drives without the need to provide a driver diskette. Don't bother creating a diskette for your SATA drives before you install Vista.

3. If, for some reason, the Vista installation gets interrupted due to an unintentional shutdown or reboot, start the computer without booting the Vista DVD. Windows Vista's installer should pick up where it left off. If it does-n't, then restart the installation over from scratch.

4. When you perform a search with Vista's new, instant search feature, you can save the search in a special folder. This powerful feature allows you to create a virtual folder which, by default, is saved in your \\Searches\ folder. Every time you open such a folder, the search results are updated.

5. In Windows Vista, you can add additional clocks to the system tray. Click the clock, and then click Date and Time Settings. Click the Additional Clocks tab. You can add one or two additional clocks to the tray and select their time zones.

6. You can save your progress in most of the games included with Windows Vista—even the carry-overs from earlier versions of Windows.

7. You can create XML documents, which are more secure than regular text files or even word processor docs. Just create a document in a word processor, print it via the options menu, and select the XPS printer.

8. If you upgrade your graphics card in preparation for Windows Vista, be sure to get a new card with as much local memory as possible. Since Windows Vista renders everything—even the desktop and windows them-selves—as 3D surfaces, local 3D memory greatly improves performance...sometimes even more than a more powerful GPU.

9. Windows Vista games deposit their saves into a special directory, called Saved Games, in your personal folder. In theory, that will make upgrading to a new system much easier for gamers, who like to migrate their game saves.

10. When using the Help system, it's usually advantageous to include Microsoft's online database in your search. The online/offline status of your search is located on the bottom right of the Help window. You can click it to toggle.

11. The Games folder is a powerful repository of all things gaming. From within, you launch games, update games with the latest patches, enable parental controls to protect younger users from harmful content, and more. Invoke it by clicking Start/Games.

12. Several applications are available to help you tweak Windows Vista for maximum performance. They in-clude TweakVI (www.totalidea.com), TweakVista (www.tweakvista.com/tweakvistautility), and VistaBootPRO (www.vistabootpro.org). And don't forget about Windows ReadyBoost, which lets you use a removable flash memory drive to boost system memory.

13. Do you use the icon in the upper left corner of system and application windows? A quick double-click closes the window (instead of a single click on the X at the upper right). Though Microsoft left the icon out in Vista, the function remains.—Sarah Pike

14. In Microsoft Windows Explorer, you can use column headers (Name, Size, and so on) to sort files. Savvy users may right-click on a column head to remove items or add some—say, Dimensions for images. There are around 45 such columns available in Windows XP. Windows Vista has well over 250, covering a multitude of metadata.—Sarah Pike

15. If you've become used to surfing your Program Menu to get to applications, you'll be in for a shock when you first use Microsoft Windows Vista. The new Program Menu shows you only recently used applications and requires extra clicks to navigate to submenus. This can be very frustrating but, thankfully, the Search box Microsoft has added to the Start menu is a great replacement—as long as you're an accurate typist. As quickly as you can type, it returns intelligent results in apps, files, even e-mail messages.—Dave Cardinal, freelance writer

From: http://www.pcmag.com/article2/0,1895,2088459,00.asp

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RAID (level 0) Performance or (level 1) Data Integrity


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RAID is an acronym for Redundant Array of Independent Disks. Raid configurations mostly benefit gaming, performance and media computers. They benefit business users in workstations and servers. A RAID system uses more than one hard drive for the benefit of increasing data integrity, fault tolerance, throughput or capacity. This does depend on the RAID configuration used such as RAID 0, or 1. At the very simplest level, RAID combines multiple hard drives into a single logical unit. Thus, instead of seeing several different hard drives, the operating system sees only one. What RAID is and what it does for you depends on what configuration you choose.

RAID 0

This level is for users of gaming, high-performance, multimedia computers and workstations. This level spreads or stripes data (data striping) evenly across two or more disks. RAID 0 is normally used to increase performance, although it can also be used as a way to create a small number of large virtual disks out of a large number of small physical ones. For example Windows will see a 360 GB hard drive if you RAID (5) 73GB physical hard drives together.

A RAID 0 can be created with disks of differing sizes, but the storage space added to the array by each disk is limited to the size of the smallest disk—for example, if a 120 GB disk is striped together with a 100 GB disk, the size of the array will be 200 GB.

RAID 0 configurations improve performance by allowing the controller to exploit the capabilities of multiple hard disks to get around performance-limiting mechanical issues that plague individual hard disks.

Cons

RAID O does double your chances of losing your data. If one drive fails you lose data on both drives. The defective drive will have to be replaced and the operating system re-installed.

RAID 1

This level is for business computers and servers RAID 1 creates an exact copy (mirror) of a set of data on two or more disks in real time. This configuration gives higher data security. This means that the data on the array can withstand even the complete failure of one hard disk without any data loss, and without requiring any data to be restored from backup. The computer or server will run on the good hard drive until the defective hard drive can be replaced. A RAID 1 can be created with disks of differing sizes, but the storage space added to the array by each disk is limited to the size of the smallest disk—for example, if a 120 GB disk is striped together with a 100 GB disk, the size of the array Windows shows will be 100 GB.

Cons
You should still backup your data because RAID level 1 does not protect from any data corruption, viral infection, spyware infection or accidental deletion. Since both drives have the same exact data in real time (mirror).

Should I Use Raid?

Gaming and High Performance Computers
For those individuals who are playing intensive games. These users should consider a RAID 0. It will provide the improved performance needed in many game applications.

Media Computers and Workstations
For those individuals who are doing intensive work such as video file editing, graphical design, CAD/CAM, and the like should consider a RAID 0 will provide the improved performance needed in many of these applications.

Business computers and servers
All but the smallest businesses should be running their critical data on RAID 1. Data is so important, and interruptions can be so crippling to most businesses.

Written by JR Computers Staff
From: http://www.jronsite.com/raid.htm

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