The Nexus Gulf

Today it is a must for any business to invest in IT equipment if only to get their products or services on the World Wide Web. some pretty costly external IT professional services outfit. Then there’s the painful drop in income caused by all the down-time and hassle involved.

Second-hand computer hardware can reduce the basic expenditure significantly and appeals especially to new businesses and professional individuals working solo. So you can to see why the trade in refurbished networking equipment and information storage is flourishing. They can get these items at a fraction of the price and they’ll operate just as well if not better than the most recently launched equipment. If you opt for an item of used equipment, you can rest assured it will perform precisely as you need it to. When you can do without the worries that come with recently launched technologies, getting hold of a specific brand or model can look like a huge task. In reality the entire process is smooth if you join forces with competent suppliers. Tell them if you like to buy a particular server, manufacturer or other features.

It’s common knowledge that new equipment is almost always problematic, and more often than not is not great value for money. Having the entire network offline due to patching and upgrading isn’t unusual following the release of brand-new technology. In fact it is not unheard of for businesses to take the loss and replace the new networking equipment entirely.

Naturally used equipment has been tested by thousands of individuals. You will not need to spend time sorting out the factory problems associated with the current computer hardware. As well, since they’re carefully checked before being delivered, you don’t need to be worried about dependability.

Selecting quality IT asset disposal services is vital. Do some homework and find one with a good track record. Doing this ensures the units you buy are working properly. It’s a good idea to get a warranty too. So you can see the benefits of buying second hand computer hardware are more than merely financial. Indeed why not save your company some time and effort in the long run by simply buying refurbished computer hardware and, what’s more, making the most of some very economical IT financing options in one fell swoop?

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Perhaps the biggest mistake people make when building their computer(s) is to underestimate the importance of the hard disk drive (HDD). In our modern society, bigger is synonymous with better, so when you go to buy a hard drive you look at how “big” it is, its data capacity. But is that all you should be considering when buying your hard drive?

Like every other component of your computer, the HDD is far too complex a system to describe in any sort of detail here, but hopefully by the end of this article you will know what to look for when you go to buy your new hard drive.

There are 4 primary aspects to look at in a hard drive (in order of importance):

1. Rotational frequency and average seek time

2. Buffer size

3. Internal/external transfer rates

4. Capacity

Rotational frequency has become a large selling point (5400/7200/10000/15000RPM) recently, so you shouldn’t have too much difficulty finding out what the rotational frequency of your HDD is when you go to buy it. Now of course the faster it spins, the faster it can read from the disk (there are other advantages also), but be aware that the faster it spins, the more wear is put on the drive, and the more likely it is to encounter errors and malfunctions later in life. Hard drives are pretty much the only systems within your computer that have moving parts (CD-ROM, floppy disk drives, and fans also have moving parts, but they’re all cheap and if they break you won’t lose all the data you’ve accumulated over the course of owning your computer, be sure to back up your data regularly!).

If you know anything about physics or engineering, then you know that moving parts produce friction and wear, and a faster spinning platter (the part that holds the data and spins) means more friction, and therefore more wear on your drive. Of course the faster it spins the faster it can read data from the platter. So what can you do? well again you backup your data as much as possible and you get the fastest spinning drive money can buy (which is 7200RPM for ATA devices (the sort you are buying) and 15000RPM for SCSI and some Serial ATA devices (you might get Serial ATA, that depends on your motherboard)). So look for a “7200RPM” label on the drive you’re thinking of getting, it’s important!

The “buffer” I’m referring to is the transfer buffer that temporarily stores data to read from or write to the hard drive. The reason for this is that the bus (data channel between the hard drive and the motherboard) can only handle so much information at a time, and it takes a long time for the data to be found and retrieved from a platter (random seek time), so it takes a big chunk of the requested data and stores it in a very fast data buffer to be sent at the bus’s convenience. So with a larger buffer you can queue more data for transfer over the bus without having to keep sending requests to slowly find more data from the platters. Some newer drives come with as much as 8MB of buffer capacity, but it is more common to see 2 or 4MB. Usually a drive with a large amount will use that as a selling point and print it on the box/website, otherwise you can assume it has a 2/4MB buffer. My advice is to find one with as much as you can afford.

Now for the transfer rates you’re going to need to do some searching, the best way to find these numbers is to go to the manufacturer’s website and look at specification sheet for the model you’re looking to buy (actually this is the best way to get all the information I’ve talked about so far). One thing to look out for is that you may read something that says 133MB/s or ATA/133 or SATA150 or 150MB/s, and these are not the numbers you are looking for, those numbers describe the bus connecting the hard drive to the motherboard, and are theoretical peak numbers, which tell us virtually nothing. Also, if you are buying a Maxtor, don’t bother looking up actual transfer rates, as Maxtor is apparently afraid to release such information. Not to say Maxtor’s are bad drives, actually Maxtor has risen to the top in terms of technical support and they are much more willing to replace broken drives than some other companies, which is important since some ridiculously large amount (something like 10 or 15%) of hard drives are either dead on arrival or die within the first few weeks of use. As with the last two points, when looking at transfer speeds (if you can find them) always try to pick the one with the highest numbers you can afford.

Notice that the first three of the 4 major aspects were all speed related? That was done intentionally to give you a sense of the importance of speed in the hard drive, because they are very very slow creatures, and for your gaming experience you don’t need an enormous hard drive so much as a fast one. To increase speed substantially more you can set up a RAID, which is a network of hard drives which (in RAID0 mode) share portions of the same data, such that accessing data takes 1/n time (n = number of hard drives attached) compared to 1 hard drive. To do this you really need a hardware RAID chipset, which are commonly included on higher-end mainboards.

Finally, capacity is an unnecessary nicety. The smallest hard drives you can buy today that are still within those higher speed classes are all about 30GB, which is more than enough for your games. But since games are not everything, and if you happen to be an iTunes member or like to download anime then you will really want some extra space. So I would recommend getting something between 60 and 120GB, any more and you’re going to be paying through your teeth, any less and you might be looking to buy a supplementary hard drive in a couple years. And, oh yeah, 300GB hard drives from Maxtor are out, but they are comparatively slow, so I wouldn’t recommend getting one for gaming, I like to stick to single platter drives (40-100GB usually), as they produce less heat and are less likely to break down on me.

That is really all you need to know in order to make a good choice when upgrading your hard drive or buying one for a new computer. Of course there are many other resources on the web if you would like more detail on the inner working of hard drives.

About The Author

J A Carpunky http://www.computer-gaming-system.com – visit our website for further information.

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Replacing or restoring a scratched windscreen can be a simple or tedious task of possessing a car, depending on the approach you take. Windscreen replacement is not for the faint hearted; it takes strength, a pair of stable hands, and a willingness to follow instructions carefully.

Every car is unique, most of the time, taking out a windshield requires loosening the urethane that holds it in place, then cautiously lifting it out of its position so as not to drop and shatter it. Once this step is done, using the a utility knife the left over urethane must be cleared away to make room for the new windscreen. The new windshield is then glued into position, and enforced with bolts. When replacing a windscreen, it is extremely important to ensure that the new urethane seal is put in place the right way, because any leaks can cause wind to get into the car, totally ruining the experience of driving.

You do not always need to replace your windscreen if it has a chip, it may be possible to repair it instead of replacing it. Windscreen repair is an easy procedure. Repair kits can be found in almost every auto parts store, and involves sealing off the chip with resin. The resin the clear and does not leave a mark, and once the procedure is complete, it is almost impossible to distinguish that the windshield was ever damaged. Windshield repair kits can be unreliable when used to fix large cracks, however, and can sometimes make the problem worse, needing a replacement. This job is often better left to professionals.

If you decide to let a professional handle your windshield repair or replacement, you may be delighted to find that very often you do not need to bring your car to the garage. Many repair companies offer mobile services, which can be completed in a matter of an hour or less, even if the windscreen requires to be replaced completely. Mobile windscreen repair services are able to perform the service at the comfort of your own home, or at work, making it an extremely convenient one.

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