Lightweight, Practical, compact, and easy to under go everywhere .. That is why in recent portable external hard drive was chosen as an alternative medium. No need to bother, just connect an external hard drive to the USB / FireWire to any PC, no need to plug the power supply, you've got extra mobile storage media. Typically, portable hard drive along with a piece of data cable USB / Firewire. Some manufacturers brought along a USB cable with two interfaces alta (read = plugs) USB in series to obtain supplies enough alta power to play hard metal disc. For this type, you are advised to always plug the USB interface when using the hard drive. Some manufacturers also bundled with backup software sales package. The function of this software is to recover alta data in the event of a catastrophe. There has been no formal comparison of the respective manufacturer alta stating what software is better than software who, but the presence of congenital software is quite helpful. Especially for consumers that enables an external hard drive as a backup of important files. Of dong, important data can be a nuisance alta if the company that for years suddenly disappeared .. What to Look For? You can find varied brands in the market. There are A-Data, Buffalo, alta Iomega, Imation, LaCie, Maxtor, Qnap, Samsung, Seagate, Toshiba, Transcend, Western Digital and other brands. Each vendor alta / manufacturer gives the lure of different facilities. But one thing is relatively the same, the physical appearance alta of a portable hard drive is now more beautiful, alta petite, with a greater capacity. The external hard drive is packaged in a form factor (size) 1.8 ", 2.5", and 3.5 ". You can choose according to taste .. Before deciding to buy a portable hard drive, you should consider a few things you need to look as a reference for selecting the right hard drive, for you must: 1. Capacity (maximum file storage capacity) portable hard drive storage capacity is very ranging from 40GB to 500GB. But now also has appeared portable hard drive maximum capacity up to 1.5 TB (terabytes). If you do a lot of work with video and graphics files, I recommend choosing a portable hard drive with the largest capacity you can buy. But for those of you who want to get an economical backup media, alta you need to look at the comparison alta price and hard drive capacity. The trick is to find the cost per 1MB of storage media with a simple formula: Price per MB = Price: Capacity Hard Drive (in MB) For example: Question: What is the price per-MB to 160GB hard drive for Rp690.000: Answer: The price per MB = 690.000: 160,000 = 4.3125 alta Here is the calculation that I can make for a brand external hard drive: Size ___________ | Price Per MB 160 GB ___________ | 4.3125 250 GB ___________ | 3.2032 320 GB ___________ | 2.9575 400 GB ___________ | 2834 500 GB ___________ | 2.7 Usually the larger the size of the hard drive , the price will be more economical. For the time being relatively economical price on the hard drive of 500GB to 640GB range. 2. Rotational speed metal disk drive hard disk rotational speed also affects the speed of the data rate. The faster the rotation power, the faster data can be written and read. Rotational speed is expressed in units of RPM (rotation per minute). Generally portable hard drive spinning at a speed of 5400 RPM. You'll be lucky if you find a hard drive with 7200 RPM rotational speed up. 3. The size of the buffer or cache buffer represents the amount of memory that is cached. Cache store and handle the request queue (request) transfer read / write data from the system. The size of the buffer range from 2MB - 16MB. The larger the larger cache 'queue space' reading and writing in the disk and the sooner the data is processed. However, a portable hard drive buffer size is inversely proportional to the price. The larger the cache memory will be more expensive the price of the portable hard drive. 4. Features Recovery If available, choose a portable hard drive is equipped with backup and recovery features. This feature is useful when your files are damaged or corrupt data or due to virus attack. alta Through recovery feature, alta you will be able to recover alta data lost / damaged. 5. Ability PnP (plug and play) PnP means, more or less can be interpreted, immediately step on the gas plug. Once you plug the USB cable, portable hard drive can be used directly without the need to install any drivers or software. PnP ability dross helps if you use one or more portable hard drive on multiple PCs simultaneously.
Shockproof hard drive from Transcend 6. Warranty, saying, warranty reflects the quality of the product. This statement may not be one hundred percent correct, but the willingness Manufacturer warrants its products can run smoothly without interruption during a certain alta time period will ensure consumers tid
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