Archive for the ‘Hardware’ Category:
Written on October 26th, 2009 by adminno shouts
Some facts are often found on notebook batteries for notebook users Many people think that plugging the charger when using notebook with installed battery condition is good, because there notebook protection circuit that automatically decide when battery power is full. But it was not like that, this is the reason.
1. The main enemy of lithium batteries is overcharge. Although the notebooks now have intelligent circuit that stops charging when the battery is full, but when the battery is reduced again (because he used) will automatically back up to full charge again, and will be repeated. The problem is, in fact after a full he will not immediately end, but still had few seconds until minutes before the circuits actually work to decide the flow of charging. At the time this happens overcharge, if this happens repeatedly assured battery will drop quickly
2. The second enemy is the life cycle of lithium. Lithium batteries have a certain life cycle where each time a charge capacity will be less and less. We charge an automatic circuit breaker working (short-circuit because it is full charge, then automatically refilled when the battery is not full), Charge the battery from 99% to 100% was considered tantamount to fill from 1% to 100% or 20% to 80%, so intelligent charging circuit here instead become a boomerang, because it will reduce the remaining life cycle of the battery.
3. When the battery charged and in use at the same time, the heat released will be greater because there are two conditions of energy processes. Heat generated can hardly seemed to feel depending on the type dekali notebooks, and we know overheating is one of the main enemy of electronic devices. Use notebook with battery and charger installed simultaneously and continuously, confirmed 1 / 2 years the battery capacity you will be able to drop the remaining live 1 / 2 its just the initial capacity. And not until the year your battery can only hold power 5-10 minutes before the notebook out. Indeed lithium batteries. Although not in use, every year its capacity will drop by itself about 25% of initial capacity when he made (normally do this kind), but there are so cara2 durable notebook battery discharged 2 even 4 years old, with a record capacity must be reduced, but still reliable.
How to use the right notebook battery.
1. How to compromise: Charge the battery up to 95% of (not necessarily 100%), use up the battery going down 5-10% depending on the type of notebook, there is a notebook that 15% had wanted to die (the big notebook and thirst for power) is also a 5% still good (netbook). New plug charger while in use anymore. Remember when you want the full (95% of) off charge it again.
2. The way a little trouble: Just like above, only when the notebook will be in charge, notebook standby / power off / not used, fitted’ve lights green / full off the charger. Here intelligent circuit are usually working right, so it does not happen disconnect and recurring charge (because he used) which causes a decrease in battery life.
3. How to repot. Turn off the notebook, sampe charge the green light signal, off the charger, remove the battery and store in a bag. Pake notebooks via UPS’ll be safe. Travel longer fit the new battery installed. This method can not be used for the type of notebook battery built in (example: Macbook unibody).
Written on October 10th, 2009 by adminno shouts
All Network Administrator will be familiar with server cabinets, the purpose of a server cabinet is to ensure the servers are kept cool, stored in way that it is accessible for installations and maintenance, and help to reduce noise output.
Think of like a bunch of servers all stacked up onto each other, then enclosed in a state of the art server cabinet. These can be seen in many businesses, security offices and computer companies in a separate room or server cupboard. Server cabinets are typically available in a standard 600mm to 800mm width, and 900mm to 1000mm depth. They can also be available with a secure locking system, so the servers will be secure from theft and vandalism.
The cabinets can come in a variety of shapes and sizes, so you are able to fit the desired amount of servers in one cabinet. Co-Location server cabinets allow users to share between each other, further allowing good management of the cabling for maintenance and commissioning. The servers can be accessed through a doorway access from the front or the rear of the cabinet. These can also come open top, sliding side panel, mesh or glass front door and mountable profiles.
Most good quality and strong cabinets can be typically found in large data centres (purposely built for holding masses amount of data onto different servers), in which some cabinets are now able to cool the systems down without having a dire impact on the environment. Traditional cooling methods use a fan, which uses up a lot of energy. Newer methods involve a liquid cooling method as opposed to a fan. Using air conditioning tends to use up more energy in year than any other energy consumption devices.
Using a cabinet liquid cooling device is much more expensive than using air conditioning and fans, however, they are far more effective and beneficial than traditional methods for reducing carbon footprint emissions. Another way of being energy efficient in server rooms and data centres is through good cable management. Stray cables could easily restrict cooling vents and ducts. This reduces energy costs and ensures energy efficiency.
Even though they appear somewhat unessential to certain establishments, they are one of the most important features for many server rooms and centres. They help to keep every server in its place and prevent a disorganised maintenance facility.
Written on October 5th, 2009 by adminno shouts
Think about the Internet as a highway and your computer is constantly traveling it. Add to that the trips your computer makes when working with applications that are not internet based, and you can rack up some considerable mileage that can result in computer problems if you don’t tune it up a bit every now and again.
In the dawn of the computer age, the proverbial geek took care of the necessary operations to help maintain a computer. Of course back then, by default, only geeks had computers. They were not household items in those days and only those who understood them better than they understood other humans had them. These geeks tweaked and optimized those early computers in an almost secretive manner-only because there was little contact outside of geek and computer relationship.
However, times have changed. Computers are in almost every home, in schools, and in the workplace. There isn’t a large enough geek population to assign a personal one for each computer to come and optimize yours when it needs a tune up. The need for keeping up with maintenance hasn’t evaporated though, and ignoring your computer’s need for optimization can result in noticeably slower running times or a computer that may refuse to work at all.
Since your computer didn’t come with its own personal geek, let’s learn a little about optimizing your electronic friend. First, start with creating a restore point. There is always the chance that something can go wrong and you could accidentally lose more data than you intend to if you don’t have a backup point. Many computers have this application included just in case you forget to do it. Some computers even create restore points periodically so that you have a way to undo whatever mistake you made even if you had no clue that your action would create a problem.
Create a backup of any documents you don’t want to lose on the same precautionary basis as the restore point serves. It never hurts to have a couple of ways to ensure that you can undo what you did if you need it. You can do this by simply burning the documents onto a storage disk such as a CD or a DVD.
Now, run a defragmentation on your computer. This can take a while if you haven’t done one regularly. It should be an option in the optimization options on your computer. Once it is done, take a click over to your antivirus software. Many of these have tools to help you optimize your computer. I know my antivirus program automatically tunes up my computer once per week. It keeps my system running as well as it did right out of the box.
Finally, delete any documents or programs that you don’t need. Just as keeping trash in your apartment takes up space, so do these documents on your computer’s memory. Don’t forget to empty your recycle bin after you’ve finished as nothing is deleted fully and no memory is freed up until that is done. This just opens up more room for your computer to do its thing.
Written on September 15th, 2009 by adminno shouts
Seeking data recovery hard drive assistance means you’ve tried everything you know to get back your files. At this point, you have a couple of possibilities, hard drive recovery software tools or hard drive data recovery services. And because there is rarely a second chances if something goes wrong, it’s important to follow a few tips when pursuing data recovery hard drive.
A few helpful data recovery hard drive tips
One of the most important rules of data recovery hard drive is to avoid using the computer with the lost data you want back. It may not make sense to you right away, but the reason for this rule is if you continue using the computer once you detect a problem, your chances of retrieving your files decreases. The file system of your computer will randomly execute a data destroy command to overwrite your missing files. If you are planning to use data recovery hard drive tools to get back lost data but are still working on the computer with a faulty drive, you need to stop what you are doing, remember or write this URL on a sheet of paper, and then bring it up on another properly functioning computer.
The second most common recovery hard drive mistake people make is to download restore data software onto the failing drive. This can also cause your data to disappear for good when your computer sends out the command to do so.
Last but not least, another common mistake people make when they are unable to locate their missing file is reboot the computer. This is actually the most common data recovery hard drive error made. As with the previous mistakes, rebooting your system can cause data to become lost for good when restarting the computer.
Why is recovery possible?
When data goes missing on your computer, it is not actually lost, it’s just hiding. The trouble is the index that points to the file’s actual location on the primary hard drive is lost. This is why data recovery is possible when acted upon quickly.
Make your choice
You have two choices to recover data. The fastest and most cost-effective method of recovery is using a software program that you run yourself. There are a variety of products available on the market, so choosing the right one can be a challenge. However, when your drive is failing it’s time to call on the professionals for help.
You may think you need to be able to match the disk data recovery program with the specific situation that caused you to lose your data. But that isn’t true. Even if you have no clue about what happened, you can start with an undelete program and work your way up one level at a time until you find the program that works. If this sounds troublesome, just choose the most powerful data recovery software available the first time around.
Seeking professional assistance
It’s possible that a data recovery hard drive program may not be enough to locate your data. If this happens, your only other option is to seek the services of a data recovery hard drive expert. Data recovery experts are a more expensive choice for hard drive recovery services, but this is the last alternative for hard drive data recovery. While data recovery service may be more compared to using recovery utilities, getting help from a data recovery hard drive specialist will reduce your risk of data loss.
Written on September 14th, 2009 by adminno shouts
With the way technology is headed, how do you know what size memory is needed for your computer? For example, if you use your computer quite often then chances are that you will need a memory upgrade. One way to determine this would be if your computer is running slower than it used to, or two programs cannot run at the same time without trouble. It is possible that your memory has come close to full capacity. The more programs that you install and run, along with the files and photos that are stored on your computer, the less memory is available for use. This causes a lot of frustration due to computer crashing, slower performance and difficulty installing new programs.
Before buying more memory for your computer, you might consider making some changes. You can put files on a disc and free up that room by deleting the files that are now stored on a disc. Now that space is available for programs or new files that you need. Another option is to go to the start menu on your desktop and click control panel, and click uninstall programs. You can view which programs that you do not use and remove them, this will also free up some memory. You may have a lot of temporary files that are interfering with computer performance and delete these. This will also free up space that you need.
If you don’t want to delete unused programs or burn files to a disc, there are other options such as review how much memory is available for your computer. Another way is find out if all memory slots are in use already, if not then you could buy more memory and install into the slots for memory. For example if your computer has the slots for 2GB of memory but you only have 1GB installed then you can upgrade to gain 50% more memory on your computer. When you are ready to purchase memory it is best to go to a certified computer supply center and ask for the memory upgrade for your specific computer make and model.
If you have basic knowledge of how a computer works then chances are that you can install memory upgrade yourself. Let’s say for example that you want to buy memory to expand to 3 or 4GB, you may want to call a specialist to install or if you just don’t feel comfortable trying to install yourself, it may be best to have a specialist install the memory upgrade.
Another tip would be if you started to do the task yourself, but found that the installation is more involved than you anticipated, it is a good practice to call a specialist. It is better to be safe than sorry, such as you continue to try to install and find that now the computer will not turn on, chances are something was not installed correctly, or possibly you disconnected something that shouldn’t have been disconnected. If in doubt, call a specialist.
Written on September 14th, 2009 by adminno shouts
There are many types of available computer memory on the market today. It can be confusing to wade through them all when considering an upgrade for your computer. So, before you take the upgrade plunge, consider some of the following information. Then, based upon your own discovery of your usage patterns and the cost of compatible memory for your particular computer as well as the advantages and disadvantages of upgrading, you can make an informed decision.
New and improved is not always the angle you should consider first. Instead, evaluate if the new improvements to the specific type of computer memory you intend to purchase are ones that you need and can utilize. There is no shame in passing on advertisements that don’t offer you any true benefits if you have no use for the memory upgrade to which the advertisement is attached.
If you are considering the memory upgrade on the hopes that it will fix a poorly running computer, please consider having your computer serviced and the root problem with performance repaired prior to upgrading your memory. There is no evidence that upgrading computer memory will solve a performance problem if that problem is not related to a lack of memory. In fact, adding memory when the problem is in the core processor will only increase your difficulties and can possibly add to the poor performance of your computer. It is always best to consider the true nature of a computer problem before trying a do it yourself approach. It is also easier on the pocketbook to correctly assess any problems you may have with your computer. Taking it into a store that services computers for a checkup may be the first step you should take if you are thinking of upgrading memory to ensure that inadequate memory is really the reason for a slow running computer.
As with any type of upgrade, if you find that the advantages to upgrading your computer’s memory are in your best interest, then take the time to back up your files before you begin. There is a chance that data could be lost even if the only thing you are adding is computer memory. The few minutes this takes may be the only safeguard you have if something should go wrong.
Consider also that most memory is added via removing the CPU hood and installing “cards”. This does require that you know something about the inside of a computer. If you are unsure about operating the configurations of wires and other foreign looking occupants beneath the casing of your CPU, consider having the memory installed by a professional. The cost of gaining the security of having someone who knows the ins and outs of computers and installing memory can save you money in the long run as the experience they bring to the table can help your memory upgrade go smoothly.
Hiring a professional computer technician is also the wisest choice if you look at the types of memory from which to choose and scratch your head in confusion. Since there is more than one type of RAM and each type has specific properties that perform specific functions, you need a basic understanding of them and what your computer is able to handle in terms of compatibility.
As with any decision and purchase, weigh your options and then make your decision. Whether you hire a professional technician or attempt a do it yourself method, the time you spent researching the decision is ultimately the best thing for you and your computer.
Written on September 13th, 2009 by adminno shouts
In the first computer memory was created with simple architecture and very rough compared to the computer memory of today. The time was the 1940s and 1950s. As sock hops entertained the children of that generation, the birth of computers and computer memory emerged for the use of businesses and large companies. Virtual memory was still a dream that hadn’t had a chance to be dream and the speeds at which the memory had to be accessed hadn’t reached above a turtle’s crawl compared to today’s standards.
Logic and simplified algorithms were the hot items of the day and technologies brightest star. All large programs, which when compared to today’s programs would still have been tiny, had to have them in order to process and manage two level storage-primary storage and secondary storage.
Then, the next stage of technology spurred from the depths of those meager beginnings and virtual memory was born. The technology that created virtual memory didn’t have the intent of extending primary memory, but rather of making such an extension possible and relatively easy for programmers to use since the first computers were outgrown quickly by the working world. It didn’t take long to figure out that increasing what a computer could do would increase the ability of business to make a profit and become a household name.
The number of jobs that the computer could do was seen in the beginning as limited. With technological advancement, that view quickly moved to limitless. This shift in the possibilities of computer memory and in computers themselves led to a technological explosion as every aspect of every conceivable probability and possibility found their way into the think tanks of programmers and developers intent on growing the functionality of the computer.
The 1960s saw even more development, with particular strides in virtual memory. The B5000 hit the market with the new technology and was designed for business use, not personal use. Personal use of computers waited in the wings, although it had not been the original intent when the development of computers began.
In 1969, virtual memory finally graduated from a buggy concept with multiple difficulties with a heavy price tag attached. IBM researched and proved its advantageous capabilities, moving virtual memory from infancy to toddlerhood without any further delays.
The 1970s saw the development of the minicomputers. These, of course, were not the minicomputers of today, but rather large in comparison. Still, they were the smallest computers of their day. The NORD1 didn’t do badly at all on the market. The birth of the idea of a personal computer became the focus of the decade.
Since the 70s, there have been so many changes with the way computers were used, how they store and hold memory, and the purpose of computers. The late 70s and early 80s saw the computer begin the personal trek as it showed up in homes. No longer just for business, these computers were very limited in their ability. The first personal computers ran just a few computer applications and didn’t have much functionality for producing the volume of work needed for home offices. By the 90s, this flaw would be rectified as the personal computer became a common and ordinary addition to homes.
By the 2000s, the home computer produced just as much revenue from business, created a new method of shopping and balancing finances as their business counterparts. Many businesses are now individuals on a home computer working with the same amount of competitive edge as companies who began the technological race for computerized functions years ago. As each milestone in technology has advanced, so has computer memory. Today, home computers use and have the capacity to store large amounts of information. The popularity of computers will only increase as the possibilities in computer memory and other technology continually increases the value and functionality of the computer.
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