Posts Tagged ‘Hard Drives’

The advent of the computer, as anyone can tell you, certainly brought with it benefits of such proportions we could never have previously imagined them. But, as with anything, the good always comes with the bad. The computer, while handing us the world, has also exposed us to the dangers of it. Part of the danger, exclusive to the operation of computers, is exposure to viruses that can wipe out our hard drives, render our software unusable, and in some cases, completely eradicate normal function of our computers. For most of us, who store personal, professional, and even legal information on our computers, virus exposure can be devastating. Luckily, most people employ the use of antivirus software that protects our computers from attack; much like hiring a bodyguard. And while some software can come at a hefty price, there is free antivirus software available on the market today.

Free antivirus software can protect your computer without you having to pay a large price for software purchase or download. This free antivirus software should protect your computer from all forms of viruses and prevent the entry of anything that will damage your internal and external systems.

Keep in mind however, that free antivirus software still comes at a price. And the price is being unsure as to the quality and effectiveness of the software. Reputable computer and software manufacturers all offer their own variety of antivirus software available for purchase. And because of their standing in the industry – and the fact that you are paying for the software – the quality of the product is assured. Manufacturers of this sort have a vested interest in standing behind their products and designing software that will effectively protect and serve their customers.

Those companies – mostly found on the Internet – that offer free antivirus software do so at risk to the consumer. If getting free antivirus software makes the most sense for your financial position right now, then do so with consideration to the reputation and reliability of the company.

Free antivirus software will provide you with a minimum of protection in the short run; but when you are able, you should invest in proper and thorough antivirus protection.

For easy to understand, in depth information about software visit our ezGuide 2 Software.

Author: Michelle Bery
Article Source: EzineArticles.com
iPhone/iPad accessory

Though it seems simple, purchasing computer hardware can be a difficult task. When it comes to buying clothes it is not as easy. All you need to know is the size and you got it. Despite what you may think, it is harder than buying food. If you know the expiration date, you are prepared. Some might think that fixing or replacing computer hardware is simple, but it can be much harder than it looks. You should look at the individual specs above the brand name. Purchasing a computer honestly isn’t the easiest thing in the world, and the more help someone can give you, the better.

Before you buy any computer component, you need to know this.

There are so many different kinds of computer hardware. For the most part they can be divided into giving you increased performance or increased storage. Know in advance what you need before buying computer parts. You need to purchase them all, so buying the whole thing shouldn’t be a issue. Finding out the computer hardware is the first thing to do when you get the computer bogged down.

You should be aware of how much various parts are supposed to cost you. You should definitely try to bargain for a better price of purchase. If you are not aware of its price point, you cannot tell if the product is being sold at a reasonable price. Check websites for prices. Some sites offer information on retail store price comparisons. This will help you figure out the best places to find good deals.

When purchasing computer hardware you should consider their specifications and performances. As an example, hard drives with larger capacities are important. The larger amount of gigabytes you have, the larger amount of storage you will have for your files. For example, choose the latest processor on the market. This will be quickest of all. Check if it overheats because it can cause problems in the future.

There is a lot of information online, but asking people you know what they think is the best way. Your own experience is key.

Ian Wright can help you with your computer needs if you visit cheap used notebook computers and http://www.cheap-laptops-site.com.

Author: Ian E. Wright
Article Source: EzineArticles.com
Low-volume PCB maker

Go on, admit it, you’ve thought about it yourself. Wouldn’t it be satisfying to set your computer alight? Sadly, that is not what this article is about. Burning In is the term used to describe the process of testing new managed server hardware for faults before putting it to use in a live environment. This is done by running ‘Stress testing’ software for some period of time.

Whenever we get new server hardware, we always do a complete burn in to ensure that the server hardware is up to our high standards. If the hardware fails at any point, we send it back to the supplier. The actual process is easy, although setting it up isn’t.

Memory

First, when the new server is turned on, we boot off of the network, which allows us to boot multiple machines at once without needing 20+ bootable disks. The first test run is the well known Memtest, you’ll find it in Google, this thoroughly checks the computers memory, and runs for about 1 day.

If the computer passes the Memtest, it is restarted and booted into a custom Red Hat kickstart install that will install a bare Red Hat environment, and Cerberus Test Control System, special software that runs numerous tests on all the hardware in the system.

CPU

Cerberus performs several tasks to test the CPU. It compiles the Linux kernel over and over again, runs complicated mathematical problems (how long does it take you to work out if 3214235409234472020393848453 is prime?), and runs some code specifically written to run the CPU at its hottest.

Hard Drive

Cerberus writes large volumes of data to the hard drives over and over again to ensure that the drive platters are functional, and it will also delete and move files, and check the disks for errors.

If after a week the server is still running (not smoking) and hasn’t crashed, it is considered good enough for use as a production machine. If it fails the tests anywhere along the way, it is packed up and returned to be replaced. Web servers that have survived this process will certainly survive anything you can through at them.

You would normally expect that this level of testing would be completed by the hardware manufacturers and so these test shouldn’t show up any faults. In our experience testing hundreds of machines we do regularly find faults, and we do send components back.

The reason it is so important to perform this level of testing on computers that will be used as servers is that the uptime demands are so high. The slightest faults will cause outages and downtime. Once a web server is deployed, never again will you have the opportunity to take it offline and perform such detailed testing. Even if it were to crash, there is always a demand that it be put back online as quickly as possible, not left offline whilst thorough diagnostics are completed.

Visit Anchor web hosting For more useful information like this on Australian web hosting and dedicated servers.

Author: Patrick Kelso
Article Source: EzineArticles.com
Provided by: Creditcard Currency Conversion Fee

I’m getting ready for Earth Hour tonight, and i want to turn my computer off – powerpoint and all. But will it forget everything? all of my photos, documents, everything? I’m just abit paranoid…

Answer:
just save your files before shutting down.. Hard drives can hold information without power, so all your files are safe.

In recent times with the “Credit Crunch” beginning to bite a lot of people may well be tempted to try to repair or recover their data from a failed hard disk drive or memory stick. Alternatively they try to use recovery software, which is easily available on the net, can be paid for and downloaded online.

In most cases this software will be a hard drive recovery programme for a hard disk drive that has suffered from some form of logical table corruption and will not assist with

1. Mechanically failed devices
2. Degraded hard Disk Drives
3. Devices with electronic failures

This software will of course not be able to help and if the drive is degraded or suffering from a mechanical failure attempting to run this software will in most cases cause further damage to hard disk drives, potentially making the disk unrecoverable.

Downloadable recovery software often seems like a good buy and can be quite reasonably priced but unfortunately it will not be able to help with as many hard disk problems and that is an important point to note. If you get it wrong you could lose your files forever!

There are of course a lot of IT experts around of course and you may even have some in your own business, but do they really know what they are doing when it comes to the serious issue of data recovery? You would think that your onsite IT support would be data aware bit this is quite often simply not the case.

In a typical case a drive was initially presented for diagnosis and duly diagnosed with a blown PCB – the drive seemed completely dead and would not spin at all. As an additional test a new PCB was placed on the board so that the response of the heads could be tested. The result of this test was that the heads appeared to have been “blown” by a power surge through the drive.

Upon further discussion, with the client, it transpired that the IT dept had decided to remove the HDD from the laptop and as it was an IDE device mount it as an external storage device by using an IDE connector. Unfortunately they plugged the HDD to the connector “upside down” meaning that crucially the drive received a huge power spike through it when the connector was hooked up to a PC.

It may well have been in this particular scenario that the actual problem could have been no more a few bad sectors on the disk, however due to a certain level of incompetence within this department what originally was more than likely a simple job for a data professional turned into a much more costly full drive rebuild.

Naturally the client is somewhat annoyed that his data, whilst probably still recoverable, is likely to cost much more and take longer in the recovery process.

Sadly this is not an isolated case and data recovery companies the world over will have a whol;e collection of stories where simple recoveries were turned into data disasters by the DIY and have a go brigade

So the moral of this is that whilst many people will look for a quick and cheap fix for their hard drive recovery problems, they really are best leaving it to the experts.