Guide to Buying Hard Drives

June 28th, 2009
Andrew Gates asked:


Apart from being one of the most essential parts of your computer, hard drive storage is constantly updating, in terms of both capacity of disk space and in physical size. When it comes time to upgrade your disk storage, there are a number of factors for you to take into account. Once you’ve made basic decisions about size, connectivity, speed and data transfer rate, and whether you want an internal drive or external, you can search through Myshopping.com.au to find the most suitable brand, and model, and compare the prices of different vendors.

Hard Drives

How A Hard Drive Works

Your hard drive has a number of magnetized platters connected to a spindle. The spindle spins the platters at a very fast speed while a series of read/write heads scan over them both looking for and writing information. This information is transferred via a cable system, or through a wireless connection to a hard disk controller, which in most systems is built into the motherboard, or in some systems installed as an add-in card. The information that comes from your hard drive through its controller is then made available to the components of your computer. The effectiveness of your hard drive (its performance) depends on how much of its capacity remains unused, how well organised the data is (known as fragmentation) and its data transfer rate, which in turn is dependent on its connection type and the drive’s spin rate.

Internal Hard Drives

Most computers from, the most basic home models up to the most powerful servers, have an internally installed hard drive. Technology today ensures that they are all generally fast, reliable, and offer dependable storage ability. Most modern computers have installation slots and cabling to enable you to install additional hard drive. This allows you to increase your storage capacity without giving up your existing hard drive.

Internal Hard Drives

External Hard Drives

These drives are essentially the same drives as ones installed inside computers, but cased inside a protective, portable case. This is a good solution for people who work remotely and need to transport large amounts of data. If an external hard drive is your choice, make sure your computer is compatible with the interface that the hard drive uses. An add-in card, such as a FireWire card can help to increase your computer’s capabilities. You can compare different brands of external hard drives simply at Myshopping.com.au and search on the connection type, or other specifications.

External Hard drives

Laptop Hard Drives

There have been many advances in miniaturization of hardware components for laptop computing, and hard drive technology is not left out of this loop. Laptop hard drives function in exactly the same way as internal hard drives on other computers, only they are designed to provide maximum storage and efficiency in the smallest possible package. For added flexibility, some laptop computers come with removable hard drives that can be easily installed and removed. However, before you buy a hard drive for your portable computer, check that the hard drive’s specifications will meet the standards of your computer, as many laptop hard drives are proprietary, and are not compatible with other brands and models.

Laptop Hard Drives

Size

Your hard drive stores your operating system, its programs (games and applications), your working data, and your digital music and movies. Most new computer purchases have a minimum of 80 GB of hard disk space; many have considerably more. Hard drive space is one of those things, once you have it, you’ll find ways to fill it soon enough. There is no real rule of thumb, but consider the cost per gigabyte of storage as a way to guide your purchase. If you work with large files, such as music, video and graphics, it pays to have a big storage space for your work. It may pay you to have two hard drives, one that houses all your programs and applications, and another for storing your work and projects.

You may want to compare the price of say a 160GB drive against two separate 80 GB drives. If one drive fails all is not lost. Today’s hard drives however, are fairly robust pieces of equipment and providing they are not abuse, will serve you well for a long period of time.

up to 32 GB Hard Drives

32-64 GB Hard Drives

64-100 GB Hard Drives

100 GB and more Hard Drives

Interface

One key distinguishing factor between hard drives is the way in which they connect to your computer. There are a number of basic types of connection schemes used with hard drives. Each connection type has a range of differences in performance.

IDE (INTEGRATED DRIVE ELECTRONICS)

This is by the most common connection methods. Because the hard drive controller is on the drive itself rather than on the motherboard, it helps to keep costs down. There different IDE standards available. Mostly, you will want to purchase the fastest possible standard that your computer can support. Most computers will support a standard that is faster than what the computer currently supports, so you can buy a faster drive, and update your computer at a later time. The different IDE standards, in order from most basic to fastest, are:

ATA (Basic). Supports up to two hard drives and features a 16-bit interface, handling transfer speeds up to 8.3 MB per second.

ATA-2 or EIDE (Enhanced IDE). Supports transfer speeds up to 13.3 MB per second.

ATA-3. A minor upgrade to ATA-2 and offers transfer speeds up to 16.6 MB per second.

Ultra-ATA (Ultra-DMA, ATA-33 or DMA-33). Dramatic speed improvements, with transfer rates up to 33 MB per second.

ATA-66. A version of ATA that doubles transfer rates up to 66 MB per second.

ATA-100. An upgrade to the ATA standard supporting transfer rates up to 100 MB per second.

ATA-133. Found mostly in AMD-based systems (not supported by Intel), with transfer rates up to 133 MB per second.

IDE / EIDE Hard Drives

Serial ATA Hard Drives

Ultra DMA 100 Hard Drives

SCSI (SMALL COMPUTER SYSTEM INTERFACE)

This is the hard drive interface standard used by many high-end PCs, networks and servers, and Apple Macintosh computers, except for the earliest Macs and the newer iMacs. While some systems support SCSI controllers on their motherboards, most feature a SCSI controller add-in card. SCSI drives are usually faster and more reliable, and the SCSI interface supports the connection of many more drives than IDE. While SCSI drives come in many different standards, many of them are not compatible with one another. So it’s important be know that your computer supports the drive you plan to install. The different SCSI connections are:

SCSI-1. A basic connection using a 25-pin connector, supporting transfer rates up to 4 MB per second.

SCSI-2. Uses a 50-pin connector and supports multiple devices with a transfer rate of 4MB per second.

Wide SCSI. These drives have a wider cable and a 68-pin connection that supports 16-bit data transfers.

Fast SCSI. Uses an 8-bit bus but transfers data at 10 MB Per second.

Fast Wide SCSI. Doubles both the bus (16-bit) and the data transfer rate (20 MB per second).

Ultra SCSI or Ultra Wide SCSI. Uses an 8-bit bus and transfers data at 20 MB per second.

SCSI-3. Features a 16-bit bus and transfers data at 40 MB per second.

Ultra2 SCSI. Uses an 8-bit bus and transfer data at a rate of 40 MB per second.

Wide Ultra2 SCSI. Uses a 16-bit bus and supports data transfer rates of 80 MB per second.

SCSI Hard Drives

Ultra320 SCSI Hard Drives

FIREWIRE (IEEE 1394)

The FireWire standard is becoming popular in portable hard drives because it can be connected and removed without having to reboot the computer. It supports data transfer rates of 50 MB per second, which means it is ideal for video, audio and multimedia applications. FireWire requires a dedicated add-in card and the hard drives in use require an external power source, but the interface can support up to 63 devices simultaneously.

FireWire Hard Drives

USB 1.1 (UNIVERSAL SERIAL BUS)

Pretty much all computers today include USB ports on their motherboards. (On older model, you can install an add-in card.) USB controllers can be used to connect external hard drives, and can support as many as 127 devices simultaneously either through USB port hubs or linked in a daisy chain fashion. USB controllers do delivery power to devices connected to them, but many hard drives still use an external power source. USB is limited by its data transfer speed, the maximum rate being about at 1.5 MB per second.

USB Hard Drives

USB 2.0 (HI-SPEED USB)

A more recently introduced and far better connection standard that offers backward compatibility and data transfer rates of up to 60 MB per second. USB 1.1 system can use a USB 2.0 device; it will need a USB 2.0 controller card to achieve the higher transfer rates.

USB 2.0 Hard Drives

FIBRE CHANNEL

Fibre Cabling is mainly used for high-bandwidth network servers and workstations, providing very fast data transfer rates (up to 106MB per second), and connection at long cabled distances, although it is expensive and you need to install a special interface card.

Spin rate

Data transfer rate is crucial to how well your computer performs for you. Apart from the connection types above, the performance of your hard drive depends on its spin rate, measured in RPM. Higher RPM generally means faster data transfer rate. The lowest spin speed that is acceptable in computing today is 5400 RPM. The common standard at present is 7200 RPM. But higher speeds are available in SCSI drives, and it is one area of computer system technology that is constantly being developed.

3600 RPM Hard Drives

4200 RPM Hard Drives

5400 RPM Hard Drives

7200 RPM Hard Drives

10000 RPM Hard Drives

15000 RPM Hard Drives

A larger capacity hard drive will not necessarily make your system function any faster unless you are low on available disk space with your existing drive. But a drive with Ultra ATA/100 or ATA/133 and a 7200 RPM spin rate will pretty much guarantee an improved hard drive performance.

Other considerations

CACHE

Cache (pronounces ‘cash’) is additional temporary memory that acts as a buffer between the system and the drive. Frequently accessed data is stored in the cache for quick access. Cache sizes vary from 512 KB up to 16 MB on some SCSI drives. The larger cache you have on your drive, the faster your drive will transfer data. If you are working with large files, such as video, images and audio files, it pays to have the largest cache you can get (8MB or more).

SEEK TIME

The data on your disk is stored in tracks and sectors and when you instruct your hard drive controller to retrieve some data, it goes looking. The seek time is a measure of how long it takes the hard drive to find a specific track on a disk. Seek times can vary slightly from disk to disk and a drive with a faster seek time will always perform better.

INTERNAL AND EXTERNAL TRANSFER RATES

These two rates tell how fast a drive actually reads the data and passes it along to the system. Internal Transfer Rate refers to the time it takes for a drives heads to read data from the platter and pass it to the drive’s cache. The External Transfer Rate (sometimes called the Transfer Rate or the Burst Transfer Rate) is a measure of the time it takes to send the data from the cache all the way to the computer’s memory. Naturally faster transfer rates provide better performance.

S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology)

This is a nice built-in feature in some hard drives that can help alert you to a potential hardware problem. Your computer’s BIOS must support this in order for the SMART function it to work, however the drive itself will still work in a system without it.

Buying and installing a hard drive has some technical aspects that you need to take into account. Use Myshopping.com.au to compare different hard drive makes and specifications to find the drive that will work best for your needs and computer. You can compare prices and service offers from different vendors.



Personalize Data Storage With Custom Usb Flash Drives

June 24th, 2009
gardnerwilkinson asked:


The availability of custom USB flash drives has simplified storing data from computers. USB flash drives are lightweight and have large storage space, which have contributed significantly to their popularity. Moreover, using USB flash drives is the fastest and easiest way of sharing music, pictures, emails, presentations, videos, important files and critical data. The distinctive feature of USB flash drives is that they can be customized into any shape, size, color and theme to suit any situation or preference. Custom USB flash drives are among the best ways of personalizing your storage devices.

Who Would Prefer Custom USB Flash Drives?

Since it’s easy to customize the shape, design and color of USB drives, custom USB flash drives are the best choice for those who are bored of using the same old-fashioned USB flash drives. These flash drives are also preferred by people who want everything used by them to depict their personality. Customization is also sought by those who wish their USB drives to be personalized to fit their requirements.

Custom USB flash drives are the best options for those who are keen on being seen with something unique and on making a style statement. These flash drives are also a good and thoughtful choice as a gift for a friend.

Custom USB Flash Drives: Types

There are several companies that offer custom USB flash drives. You could opt for:



A USB flash drive with a unique 2-D or 3-D shape. With companies offering a wide range of up to 100 styles, there is an amazing array of shapes to choose from. You could opt for pocket pen, pocket knife, capless, spin, spark and designer models.

Your favorite color on the USB flash drive.

A USB drive made from materials, such as wood and leather, to give it a distinct feel.

Additional features, such as music and blinking headlights, to make the drives more attractive and jazzy.

Getting your name etched on the USB flash drives. This could enhance its personal value.

The storage space that best meets your need. Custom USB flash drives are available in memory sizes in the range of 64MB to 2GB.



With the help of custom USB flash drives, you could personalize the way you store data and add color to your life. USBSMG has a team of experts that designs and customizes USB memory flash drives according to varied tastes and preferences.



Some Standard and Advanced Features of Pen Drive

June 16th, 2009
Roberto Sedycias asked:


Sporting all the convenient features of a removable storage device - feather weight, small size, larger storage space, and durability - pen drive is a must-have device for the technology freaks. Of late, pen drive has evolved from being a mere storage device to multi-functional unit for the computer users.

For average users of pen drive, the device is a simple storage mechanism and they scarcely bother about the features so long as it solves their basic purpose of storing and transferring information. But the tech-friendly and discerning users of pen drives are more careful about the features.

Though the basic selection of pen drive is based on prime feature of storage space, technical enthusiasts are developing special interest for advanced features of pen drives.

Apart from the generic features of huge storage capacity, pen drives also feature built-in micro camera, voice recorder, biometric security, MP3 playback. Let us discuss about some of the basic as well as advance features of pen drives.

Storage capacity:

The ubiquitous Pen drive has earned its popularity due to its exceptional storage capacity. Earlier, the pen drives were available with 8 MB storage capacity, that was several times more than other removable storage device such as floppy and CD-ROM. Recently, pen drives are available with storage capacity of 32 GB, 64 GB and 80 GB.

Technology experts are looking forward to develop pen drives with tera bytes. Before a year, the pen drives with high storage space was not popular for their high price tags. But the rapidly decreasing price has made pen drive a easily accessible device.

Compatibility:

Compatibility is the most remarkable feature that you can find in your pen drive. The prime reason why you are using pen drive is to access the same data or information in different computers. But all computers you use may not have the same operating system to support. Most advanced pen drives are compatible with Windows, Mac and Linux. Basically, while choosing a pen drive you should look for this feature to get maximum benefits out of it.

Rechargeable battery:

The pen drive that provides MP3 playback through earphones needs power backup. That`s why some pen drives come with built-in rechargeable batteries. The battery gets charged when connected to the USB port of the computer.

MP3 player:

Music lovers can get their best from the MP3 player facility available with pen drives. The pen drive with MP3 player also features mini USB port, and an audio input and output.

LCD displays:

The LCD display of pen drive has made it a high-end device. The LCD display enables browsing through the list of songs that you store in pen drive.

Camera:

Camera is one of the most advanced features that are available with a pen drive. Basically, it is a still camera for a generic use. But when the pen drive is connected to the USB port of a computer, it functions as a web cam.

These days, pen drives are being developed with tiny speakers. Some pen drives are coming with inbuilt card readers. You can also find pen drives with finger print scanner as advanced security system.

While selecting pen drive you may be flooded with options regarding the shapes and sizes. Some resemble bricks and other toys. Of late, pen drives have been integrated with other necessary items that people love to carry such as watches and pens. If you look for advanced features in your pen drive you should collate adequate information regarding pen drives, their features and feasibility for your purpose.



Five facts you need to know about prices before buying a hard drive

June 7th, 2009
Armstrong Karsaw asked:


Every few years I find that I need to purchase a new hard drive. Choosing a drive to buy is never simple. Drive capacities grow very quickly, as the price per gigabyte drops. Further, a large number of storage products is available from dozens of manufacturers. A great many articles explain how to choose a drive that would work with your computer, and how to install it. This one will tell you about getting the best deal for the hard drive you need, and how to avoid some of the hidden pitfalls of drive pricing.

We started with the hard drive price chart at http://www.factblender.com/. The FactBlender chart shows over one thousand hard drives from large online merchants as colored dots, positioned by their capacity and their price. As storage technology and prices change frequently, go to the FactBlender website to view the up-to-date chart. Several patterns emerge from this visualization:

1. There’s a sweet spot

As you look at larger and larger drives, you might expect prices to climb higher.  But doubling the drive capacity does not necessarily mean a doubling of the price.  When we wrote this, the least expensive SATA 3.0 drives sized 250MB, 500MB and 1TB cost $44.96, $62.98 and $89.99, respectively.  For about twice the price, you could quadruple the capacity!  This goes on only up to a point, however.  To lay your hands on the largest of drives, you will need to shell out more than twice the price of two smaller ones.  The inflection point, where prices start climbing faster than capacity, depends on the current manufacturing state of the art. It changes over time too.  From a capacity standpoint alone, it would make the most economic sense to purchase the drive that gives you the most gigbytes for your dollar.  According to factBlender, at the time of this writing, the Hitachi Desktar 7K1000.B holds this trophy at 1TB, $89.99, and 11.11 GB/$.

2. Smaller isn’t necessarily cheaper

When we inspect the lower range of the capacity spectrum, we find some surpring facts.  When we wrote this, the least expensive drives sized 40GB, 60GB and 80GB cost $44.95, $42.99 and $39.99.  In fact, the least expensive spindle-based drive in the entire collection was that $39.99, 80GB Samsung SpinPoint SATA 150 drive.  Not only is price no longer correlated with increasing capacity, it is going the other way!   What’s going on?  We suspect that as consumer desires migrate towards larger drives, the demand for smaller devices falls.  As they reach the end of their manufacturing lives, they are made in smaller quantities, and the costs of producing, stocking and supporting them rise.  These changes are reflected in the retail price.

3. Wide gaps in prices

What about similarly sized drives — would their prices cluster in a tight price band? No, it turns out that prices for the same amount of storage spread across a wide range. For example, while the least expensive SATA 3.0 1TB internal drive from Hitachi lists for less than $100, the most expensive 1TB drive from that vendor lists for more than $300. Other vendors follow this pattern, offering several drives at differing price points for each major capacity. The more expensive products often carry more features, such as larger RAM buffers and faster claimed throughput. You should ask yourself whether the added features are important to you, and whether they justify the difference in price. The lower priced drives are quite capable. The higher price points allow vendors to collect more from consumers willing to spend as much, while still competing hard at the lower end of the range.

4. Some capacities are more common than others

Hard drives are available only at certain capacities. While there are 500GB drives, there are no 520GB, 550GB, and almost no 600GB drives. The more common sizes are 80, 120, 160, 250, 320, 500, 750, 1000 and 2000GB. Drives are also available at some less-common capacities, such as 100, 150, 200, 300, 400 and 640GB. When looking for a drive, start with the more common sizes. By definition, there are more products available there. As a result, the competition is much fiercer, leading to better choice — and prices. For example, there were 22 500GB internal drives under $100, starting at $62.79, while there was only one 400GB drive at that price range, at $79.46.

5. Prices change all the time

Each time we looked at a fresh copy of the chart, it was different from the one before. The overall patterns remained the same; drives were available only at certain capacities, the inflection point was the same, and bigger drives were generally priced higher. But at the micro level, nothing remained the same. Prices of individual drives appeared to change slightly each time. You could almost say they were fluctuating. We attribute much of this frequent change to the fierce competition between vendors, especially at the lower price range and around the 1TB inflection point. If you are looking for the best price, keep track of the product price for several hours, or even days, and purchase when it shifts lower.

Parting thoughts

When you read this, technology and competition would have moved forward. Larger drives would be available at lower prices. The inflection point would have moved upward, to 2TB and beyond. To find where the best deals are, get a fresh copy of the chart (at factblender.com), find the capacity that gives you the most gigabytes for your money, and choose from the best devices at the lower end of the range. If you are looking for the best possible deal, check the chart over several days to take advantage of possible fluctuations in prices.



Get Data Off Your Broken Hard Drive

June 7th, 2009
Jason Kay asked:


A damaged hard disk drive is one of the most unpleasant types of hardware failure. No, I don’t mean that a burned processor or a damaged memory block are more enjoyable. Not at all - they are also disasters and in terms of money generally it is more expensive to replace a processor than to replace a hard drive but damaged hard drives have one very irritating property - you lose not only your hardware but also all or some of your data. Data is priceless and if you don’t have a backup copy of it, then you are lost.

However, not all hard drive damages are that bad. There are cases when the hard drive is damaged but the data on it is alive. So, if your hard drive crashes, don’t panic but hope for the best - i.e. the drive might have become an obsolete piece of machinery but at least your data is not buried inside. There are different strategies for evacuating data from a damaged hard drive and which one you can use depends on the sort of damage, as we’ll see next.

What Is a Damaged Hard Drive

A damaged hard drive come come in many flavors. In addition to that, there are many cases when the drive is not damaged but due to some reason the data can’t be accessed. For a non-specialist all these cases might look the same - I can’t access my files, so my hard drive must have gone off, while in reality the hard drive is perfectly OK but your data is unaccessible because of some prosaic reason.

Without getting into technical details, the shortest (and hardly most precise) explanation of a completely damaged hard drive is that this hard drive can’t be accessed with any means even by a qualified PC technician. So, unless you are a PC technician yourself, you can’t determine on your own if the hard drive is totally dead or not. However, since there are many cases when a drive is still alive but it can’t be accessed due to a variety of reasons (most frequently software issues) you can try some of the approaches in the next section and see if they work. Even if they don’t work, they will do no harm, but this does not mean you shouldn’t be cautious when applying them.

What You Can Do on Your Own

One of the cases when the hard drive is not physically damaged but is unaccessible due to software reasons is when the partition on which the data resides is inaccessible, or at least not from your operating system. In this case you can use an alternative operating system, for instance a Live CD with a Linux distribution and see if you will have more luck accessing the partition. This will work, if the partition table on your computer is not totally messed up. If you see that the data is still unaccessible, don’t attempt to mess up with the partition table because you can make things worse. Instead, hurry up and find a PC technician and pray that he or she will be able to recover your data for you.

Another case when the data might still be alive is when the drive has been formatted on a high level. If the drive has been formatted on a low level, the extraction techniques will not work because the data has been physically destroyed. There are many tools to unformat a formatted drive and you can have a look at the ones listed here: http://recovery-review.com/unformat-tools/. Most of the tools are paid ones but you can find free as well. Hiren’s Boot CD comes with a bundle of data recovery tools and I generally prefer to use them than any other tools.

Software problems are common but hardware problems - I.e. bad sectors or a damaged controller are also not an exception. Unfortunately, there isn’t much you can do about them. If data is ****** by a bad sector, then in 99% of the cases it is gone for good. The 1% stands for the rare chance that you have made copies of exactly this file and the copy is not on a bad sector but this is really a lucky exception. You can take the hard drive to a service but it is unlikely that they will be able to do much.

Another technique you can try on your own without risk to make the damage more severe is to go to your HDD manufacturer’s site and see if they provide retrieval tools. Usually hard drive manufacturers provide diagnostic tools but if you are lucky, chances are that you will find a data retrieval tool as well. Very often the diagnostic tools themselves not only check for problems but they also can fix some issues, so they could help you save your data as well.

The above mentioned techniques to extract data from a damaged hard drive are only a small fraction of what can be done. However, many of the other techniques are more complicated and they do require some knowledge about a hard drive’s architecture, so I wouldn’t recommend you to apply them because you can make a lot of damage. Some of the techniques that require opening the computer case or messing with the parts of the disk itself are too dangerous to try at home. No, you will hardly destroy your home but you can surely further damage the hard drive, making it impossible even for a technician to help you. Additionally, you can void the warranty for the computer system, which is hardly what you want to achieve.

Take the Hard Drive to a PC Technician

If you have tried to rescue the data from your hard drive on your own to no avail, you have no choice but to take it to a service. A PC service has more equipment than the standard user and there is a chance they will be able to help you but still, don’t expect miracles. In some cases data extraction services could be free of charge, especially if you have bought the hard drive from them and the warranty has not expired yet but in other cases you will have to pay.

As you probably guess, fees vary. As a rule, the cost depends on the volume of data that needs to be extracted but generally it does not cost a fortune - you might be able find somebody to do it for around $200. Still, if your drive has serious physical damages, even if you go to a more expensive data rescue lab, there is no guarantee that your data can and will be restored.

Skilled PC technicians have more tools and techniques and their disposal. If you are interested in contacting a reputable company, try the service listed below. If you would like to learn more about hard drive data recovery techniques, here are two good articles: www.wikihow.com/Recover-a-Dead-Hard-Disk and www.networktutorials.info/datarecovery.html. Some of the information in these articles might be useful to diagnose the problem, but don’t even think of applying the techniques on your own. It is really risky!



A Quality Defensive Driving Course Could Save Your Life

May 14th, 2009
Bailey asked:


 

There are many reasons to enroll in a defensive driving course. You really only need one though, a defensive driving course could save your life. We all take our driving skills for granted and have good confidence in our ability to react properly under unusual circumstances. And perhaps you can. But most drivers greatly over estimate their ability to respond correctly in life threatening driving situations. That’s not your fault. It’s just that, luckily, we don’t have the chance to practice for those instances. A good defensive driving course will give you the chance to prepare for those dangerous situations and provide you with tools that will decrease the likelihood that you will become involved in a fatal collision.

Most people learn to drive from a family member or friend. The skills we gain are certainly sufficient to earn us driving credentials. What we don’t learn however, are those things that give us mastery beyond a basic understanding of our vehicle and the rules of the road. A good defensive driving course will do just that. Give us instruction on those elements that go far beyond basic vehicle handling and driving rules. Your defensive driving course will give you the chance to learn from professional instructors under controlled conditions. You will be introduced to factors such as automotive engineering and vehicle dynamics and how these can greatly affect how your vehicle will respond in a dangerous situation. You will also learn how to look for and avoid dangerous situations—all those things that basic driving instruction doesn’t cover.

A well designed and properly instructed defensive driving course will offer the strategies and techniques you need to protect you and your family while we are on the road. Many of these defensive driving course techniques are the same ones employed by first responders and other emergency personnel. Upon completing your defensive driving course you will be armed with the very same driving tools that many police and fire officials use.

If you assume that defensive driving courses are only for students who are just learning to drive, you should think again. While taking part in a defensive driving course is certainly an excellent way to ensure that your young driver is ready to drive responsibly, and probably should be required before receiving a driver’s license, they are also invaluable for experienced drivers. Remember, it is not just your driving behavior that puts you at risk. All those other drivers that you cross paths with on a typical day put you at risk as well. A defensive driving course will explore some of the danger signs you need to look for when on the road and offer practical tips on how to avoid becoming victim to another irresponsible driver.

Most professional defensive driving course academies offer multiple levels of driving skills courses so even experienced driver can find the appropriate defensive driving course to help improve driving skills and improve safety on the road. As you complete the various defensive driving course levels you will find yourself with more confidence on the road and a greater awareness of all those things that go into making a truly safe driver. You will find yourself employing those techniques that you learned and expecting other drivers in your family to do the same. Your defensive driving course will indeed make you a safer driver and help you ensure that both you and your family get to where they are going in one piece.

 



Solid State Drives

May 13th, 2009
Stacy Page asked:


If you’re like most consumers today, you’re probably thinking it’s time to upgrade from your standard hard drive to the latest in storage technology—a solid state hard drive. After reading this article, you’ll be more familiar with solid state drives (SSD), including the advantages and disadvantages of this new technology.

What is a Solid State Drive?

The term “solid state” refers to electronic circuitry that is built entirely out of semiconductors rather than magnetic media. This shift in technology is now possible because of the growth in flash chips. Although solid state drives use the same type of memory chips as flash memory drives, SSDs reside inside the computer in place of a more traditional hard drive. These data storage devices utilize non-volatile flash memory for computing applications that traditionally rely on a mechanical hard disk drive. 

Unlike conventional hard drives, SSDs are built with 100% moving-free parts that are housed in a vibration and shock-resistance covering. These components provide a rock solid operating environment even during extreme working conditions, making it a perfect solution for a wide range of applications that require ruggedness, minimal power consumption, cooler temperature, and silent operation. 

Benefits

Solid state drives have several advantages, the majority of which come from the fact that the drive does not have any moving parts. Three distinct advantages include:

·        Less power usage

·        Faster data access

·        Higher reliability

The power usage is a key role for the use of solid state drives in portable computers. Because there is no power draw for the motors, the drive uses far less energy than the regular hard drive, improving battery operating time in notebook PCs and portable electronic devices. When you are on the go, this extra battery life will be extremely handy.

And since the drive doesn’t have to spin up the drive platter or move drive heads, the data can be read from the drive almost instantly. Meaning, you can access your files and data more quickly. You’ll enjoy a boost in performance when starting up your computer and opening applications.

Reliability is also a key factor for portable drives. Because the SSD stores all of its data in memory chips, there are fewer moving parts to be damaged in any sort of impact. These drives also have extreme shock and vibration tolerance, and their operating temperature ranges meet or exceed that of standard hard drives.

When all’s said and done, there are many benefits to this newer technology. Information can be stored permanently in flash chips even when the power is turned off, and the chips can be electrically erased and reprogrammed. Also, they make no noise, give off little heat and consume far less power, while transferring data many times faster than hard disks.

Drawbacks

Of course, not every PC owner can upgrade to a solid state drive. As with most computer technologies, the primary limiting factor of using the SSD in notebook and desktop computers is cost. This is gradually changing as the number of companies producing the drives grows along with the capacity for producing the flash memory chips.

The other problem affecting the adoption of solid state drives is capacity. Not only are the SSDs much more expensive than traditional hard drives, but they only hold a fraction of the data.

Their last major disadvantage involves write speeds, which are far slower than conventional hard drives and therefore vulnerable to write fragmentation. That means that, on average, performance comparisons may depend on a particular manufacturer’s design or running a specific application.

The Bottom Line

So if you want fast data access, less power consumption and higher reliability, then you should consider upgrading your standard hard drive to a solid state drive. You’ll experience nothing but fast, quiet and ultra-reliable solution for your data storage needs. Whether you need it for your enterprise, corporate, or IT infrastructure applications, the solid state hard drives provide the durability and performance quality you need.