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Every tangible thing can conk out anytime. Even if you take care of your things, damage can never be avoided. There are a lot of do it yourself tips on the internet for almost all the possible repairable damages your things at home might encounter.
How about computer damages? If you are a computer expert, then by all means, do the repair on your own. However, if you know nothing about computers and plan to follow a do it yourself tip to fix that computer part (hard disk for example), do not dare experiment. Aside from ruining the warranty of your computer, you might damage more parts inside just by tinkering with it.
The Universal Serial Bus (USB) in the computer is a port that allows, well, devices with USB connectors to be attached or linked to the computer. This port enables the user to attach a wide variety of hard drives to store their data.
In some operating systems, the devices you attached to your computer through the USB are detected automatically (so, less the hassle of looking for the driver and installing it manually). These devices range from USB flash drives, additional external devices such as ROMs, floppy drives (though you’ll most likely find only a number of people who still use this) and so on and so forth. You can even transfer files from your mobile phone to your computer’s local hard drive through the USB (if your computer or mobile phone is not Bluetooth or infrared capable).
The motor has an outside rotor; the stator windings are copper-colored. The spindle bearing is in the middle. To the left of center is the actuator by means of a read-write head beneath the tip of its very end and close to center; the orange stripe next to the side of the arm, a threadlike printed-circuit cable, attaches the read-write head to the core of the actuator. The elastic, to some extent ‘U’-shaped, ribbon cable just about visible below and to the left of the actuator arm is the elastic section, one last part on the hub, that continues the link from the head to the controller board on the reverse side.
The size of an HDD can be considered by reproducing the number of cylinders by the quantity of heads by the number of segments by the quantity of bytes/sector. Drives with ATA interface, bigger and in excess of eight gigabytes perform as if they were prearranged into 16383 cylinders, 16 heads, and 63 sectors, for compatibility with older operating systems. Contrasting in the 1980s, the cylinder, which calculates reported to the CPU by up to date ATA drive that has no longer definite physical parameters given that the reported numbers are controlled by historic operating-system boundary and with zone bit recording.
Hard drives can get quite cluttered and can easily get crammed with unwanted files and others and as any techie knows, a deleted file here rarely gets deleted in the real sense. A deleted file normally has the header information deleted with the space it occupies made available for storage. The file fragments are still on the hard drive till they are over-written by new data that is stored over it. Time will come when a computer system may become sluggish and the only way to return it to it’s full glory would be to do a full format and re-install of all the necessary drivers and software. Read more…
First, the SATA standard has reduced the wires needed for connection from the IDE’s thick cables down to an 8-pin connector. This eliminates the need for the bulky cable and also improves overall PC cooling efficiency allowing better air circulation inside the casing. The other and most enticing difference is the ability to hot-swap meaning hard drives can be replaced without having to turn off the power of the computer system as long as there is no read/write operation in progress.
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Hard Disk failure is one of the most frustrating problem you might encounter when you have a personal computer. A wise computer user knows that before you do anything or at least once every week,you should back up your files to a CD, DVD or an external hard drive. This way, you can protect your important data that you store in your computer. The hard disk plays a crucial role in the entire computer system. Without the hard drive, your computer will not function. Why, because this is where you install your operating system. Hard Drives generally have a long life cycle between 5 to 7 years. It will always provide you with important signs that may tell you that it is slowly failing. So you must be aware of the signs.
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Even though the hard drive stores data, it isn’t perfect by all means. Hard drive failure is imminent and a vulnerability to all computers, with no real way to prevent it. there are several reasons why a hard drive can fail, the most common factor is, overheating. Viruses and accidental deletion comes second. The old mechanism of hard drives didn’t over heat the way the drives do now. It is because the RPMs before were often low. Now we have as fast as 7,2000 to 10,000 rpms. It really generates heat. And the only solution provided for these problems are cooling fans. And most of the systems now have built in system sensors to monitor the heat over all the computer. Overheating has become a main problem of today’s hard drives. To prevent your drive from this problem, you make sure that it has a proper ventilation in hand. You can buy fans affordable enough to install in the tower casing.
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Fujitsu Asia introduced the MHW2BK series of Serial Advanced Technology Attachment (SATA) hard disk drives (HDDs).
Made mainly for blade server, industrial, robotic, surveillance and telecommunications operations, the MHW2BK series of HDDs has been considered with a spindle speed of 7,200 revolutions per minute (rpm) and a maximum data rate of 3 gigabits per second (Gb/s).
The product line also incorporates features to decrease the adverse effects of rotational vibration (such as read or write failures) which may arise when multiple drives are mounted on a single chassis and rotated at high speeds, for increased operational stability.
Specifications of the MHW2BK Series
Form factor 2.5”
Capacity * 60 GB, 80 GB, 120 GB
Interface Serial ATA 3.0 Gb/s
Rotational speed 7,200 rpm
Avg seek time (typ) 10.5ms (read); 12.5 ms (write)
Data transfer rate Max 300 MB/s
Buffer size 8 MB
Shock tolerance
- Operating 300 G (2 ms)
- Non-operating 900 G (1 ms)
Power Supply + 5 V ± 5%
Power consumption R/W (typ) 2.1 W (1.5 Gb/s) / 2.3 W (3.0 Gb/s)
Idle (typ) 0.80 W (in slumber mode
Standby (typ) 0.13 W (in slumber mode)
Acoustics Idle (typ) 2.5 bels or less
Dimensions (H x W x L) 9.5 x 70 x 100 mm
Weight 116 g or less
The read-and-write head is employed to become aware of and adjust the magnetization of the material without delay under it. There is one head for every magnetic platter surface on the spindle, accumulated on a universal arm. An actuator arm or commonly known as access arm moves the heads on an curve transversely the platters as they rotate, allocating each head to get into almost the whole surface of the platter as it twirls. The arm is enthused with the use of a voice coil actuator or a stepper motor. Big drives read the data on the platter by feeling the rate of change of the fascination in the head; these heads had little coils, and succeeded in standard with a great deal like magnetic-tape playback heads.
