Although hard drives are among the most popular upgrades for personal computers, buying one these days isn't as easy as it used to be. In addition to storage space, there are many other factors you need to consider before choosing this vital PC component. Thankfully for consumers, the cost of hard drives-or any storage system for that matter-is at an all time low.
Speed- A hard drive's read speed is a measure of how fast it can deliver data to the motherboard. The general rule of thumb is the higher the rotational speed of the drive, the more data it can read and write at once. Keep in mind that the rotational or spindle speed (measured in RPM) is the main factor related to the hard drive's performance.
For desktop computers, 7,200 rpm seems to be the standard among most users, and 5,400 rpm is probably the lowest you should consider. Although 10,000 rpm drives are gradually becoming more commonplace, they're a little on the expensive side. Of course, hard drives are available even faster than these, but they usually require a different type of connectivity. On the other hand, laptops tend to have hard drives with slower read speeds, which produce less heat and consume less power.
Another factor that affects performance is the total amount of buffer on the drive, which is an amount of RAM that frequently stores accessed data. Because RAM is faster at transferring data than the drive head operation, it boosts the overall speed of the drive. Thus, a greater amount of buffer means less physical drive operation.
Storage Space- In today's PC market, it's no longer feasible to settle for a hard drive with less than one gigabyte (GB) of storage space. In fact, chances are you'll have a difficult time finding a hard drive of that capacity. Nowadays, the minimum appears to be about 20GB, while the standard for an average family is somewhere between 80 and 100GB.
For those involved in multimedia work or who consider themselves an extreme gamer, a 160GB drive is a more suitable choice. If you run a business with inventory programs or have high-memory applications such as DVD home movies, bigger is better and definitely worth the extra money. Even if you don't think you'll use the space, super-sizing your hard drive is never a bad idea.
Interface- Now that you're familiar with the speed and capacity features on a hard drive, the next aspect to focus on is the interface, or how it connects to your system. In general, SATA (Serial Advanced Technology Attachment) and IDE (or ATA) drives are the most common in small business and home computers. You might come across SCSI (Small Computer Systems Interface) connectivity, but these are generally used on servers in professional environments. There are numerous speeds available for IDE interfaces, ranging from ATA/33 to ATA/133. The number signifies the maximum bandwidth in megabytes per second (MB/sec) that the interface can handle. For example, an ATA/100 interface can support 100 MB/sec. The most important thing you need to do is make sure the hard drive description matches up with your computer's interface.
Another interface worth mentioning is RAID (Redundant Array of Independent Disks), which allows you to group all of your hard disks together so your CPU sees them as a single unit. Of course, this option is only available to those who have more than one drive. The advantage here is speed. As your system takes turns addressing each drive, you'll get some healthy performance gains. However, this can be a little risky because if one drive goes down, they all go down.
Maintenance & care- Once you've made a decision and properly installed the hard drive, there are a few routine maintenance tasks you can perform that will go a long way. For starters, keep your system cool at all times. You should never put your CPU in an enclosed cabinet or any sort of warm, confined space. If you live in a hot area, you may want to get an extra fan just for your computer system.
You should also dust off your PC every so often and spray the openings with canned air. Also, don't set your tower on the floor, especially carpeted floors, since it's more likely to collect dust. If the hard drive is making noise, check the mounting. Usually a clicking noise means a crash is imminent or it hasn't been installed properly. So if the hard drive is new, it's probably mounted incorrectly and needs to be fixed. As a general rule, it should be installed flat, whether it's horizontal or vertical doesn't really matter.
Lastly, and perhaps most importantly, you should protect and manage your drives by installing archive or recovery software. Essentially, hard drives are the core of your PC, so don't take any chances. In addition to installing security and utilities software, consider burning a permanent copy of all your documents and files onto some kind of storage media, such as CDs or DVDs. Keep these backup files in a safe place somewhere away from your house.
With a little common sense and proper care, your hard drive will run like a dream for an extraordinarily long time. Hopefully, you now have a better understanding of this technology and are aware of the main factors to consider before making a decision. So take the time to evaluate your options, and you'll be well on your way to purchasing a new hard drive.
Mobile phones are not only a communicating instrument but also a fashion icon as well as a status symbol. Latest and full of newborn technology mobile phones are the essential part of everyone’s life. Therefore many mobile phone manufacturers have come in the mobile phone market but no other mobile phone manufacturer is so much popular as Nokia. This Finnish mobile giant has changed the method of mobile manufacturing. All the latest ad newborn technologies are available in the Nokia mobile phones. In other words, Nokia, the renowned Finnish mobile manufacturer is always known for giving the best phones with latest technologies. Nokia's N-series mobile phones are just another achievement added to the glorious tradition of Nokia's perfection. The recently introduced Nokia mobile phones are another noteworthy output initiated by incessant outpouring of newer technologies. The upcoming of newer technologies are really inspiring the mobile manufacturers like Nokia, Motorola, Samsung and LG to apply their expertise and knowledge to bring out phones with more enriched features. Nokia mobile phones of the N-series, the mobile phones are just superb highlighting 2-megapixel cameras, swiveling bodies and models with iPod-like music storage. The eldest of the Nokia N-series mobile phone the Nokia N70 is tiny and lightweight phone with 3G-capablities, 2-megapixel camera which can really add a zing to the life. Another member of the Nokia mobile phones the Nokia N90 is also loaded with a 2-megapixel capability that allows photography with great clarity. The screen of the Nokia mobile phone, N70 can be twisted and flipped to enable different shooting perspectives and also it allows video capture. The Nokia mobile phones are perhaps the most sought-after mobile phones in the market. On the top of the Nokia mobile phones, the Nokia N91 is another evidence of the exceptionalness of Nokia mobile phones. With excellent music capabilities, integrated 4GB of memory Nokia N70 is another Nokia mobile phone which deserves wide appreciation. The Nokia N95, featuring a music player, visual radio, document viewer, Internet browsers and 5.0 megapixel camera is another Nokia mobile phone born to rule the mobile world. This two-way sliding Nokia mobile phone supports Quad Band technology and thus gives a refined feeling to the world of connectivity. Above all these mobile phones Nokia N95 8GB is the latest search in N Series of Nokia. Nokia mobile phones are just second to none, with superlative technology and innovative designs. Perhaps Nokia Mobile phones are all-time favorites any mobile phone user would love to possess. A pioneer in mobile telephony in various respects Nokia mobile phones such as Nokia 6280, Nokia 6233, and Nokia 6234 come with features and functionalities fit for all purpose and all class of mobile phone users. Whether in style or service, functionality or application, Nokia mobile phones can easily surpass any other brands in the market. Small, sleek and shiny Nokia handsets easily attract the attention of any onlooker. Having one in your hand you must be proud of. There are different deal of mobile phones as pay as you go, contract deal pay monthly mobile phones and many others. You are to search over internet and select the right dealer according to your requirements and any kind of Nokia mobile phone will be in your fist.
The PC playground is full of components, all vying for the title of the most important part of your rig. Everybody has a different opinion; for some it's the processor, all that maths squeezed into a tiny bit of silicon; for others it's the graphics card, boards designed specifically to throw pixels about your panel like plates at a Greek wedding. But where would either of those supermodels of the component world be without a compatible motherboard backing them up? Nowhere. And that's where your PC will end up without a decent power supply keeping the whole lot juiced to the gunnels.
If you make a really bad choice of PSU, your entire rig may end up a smoldering heap at the e-waste recycling point of your local Pikitup. Cascade effects from faulty, or even from just under-powering supplies, can have unpleasant repercussions on the rest of the components making their home in your PC.
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