Archive for the ‘Computer’ Category
Protect Your Important Data Using Computer Battery Backups
June 17th, 2010 | 
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Throughout your experience as a computer user, there are inevitable times when unannounced blackouts caused by storms or those power surges caused by lightning occur, immediately shutting your system down, then firing it up again. Do you know that these sudden crashing or rebooting of your PC causes data loss, hardware problems, and unstable program performance?
If your business depends mostly on computers, especially if you are managing a network, this certainly poses a big worry for you. Save yourself the hassle of spending too much for hardware replacements or program reinstallations. If blackouts, brownouts or power surges caused by lightning commonly occur on where you live, you may consider getting computer battery backups to ensure the safety of your system.
How do computer battery backups work? Physically, it is connected to your computer system with another USB. It is a black box that resembles your CPU, and it is plugged to a wall electricity source. Some newer releases pride on LCD displays that register how much energy they are providing your system and a couple of buttons for turning it on. You may think this is similar to a generator, but in fact it’s not. Computer battery backups or uninterruptible power supplies (UPS) as others know it, simply houses two or three batteries that are charged.
These extra batteries will be in turn utilized when blackouts, brownouts or power surges occur. The power they provide lasts from 5 to 15 minutes, a relatively very short time, but it suffices for saving the data you are working on, switching to another power source or shutting down the systems properly. Through this manner, you can prevent data from being corrupted. This is a standard operating procedure followed by many data centers, as stated by their established checklists.
Uninterruptible power sources come in several types. One is the standby UPS systems, which is the basic of the types. It simply backs up battery power and monitors spikes and surges occurrence. Line-interactive UPS system is the next type of upgrade. It is sensitive to spikes and surges; it can regulate the electricity inflow upon detection thus ensuring a equal flow of electricity throughout the computer use. Furthermore, this type automatically switches to battery use mode every time brownouts occur. The highest type will be Online UPS systems that actually clean out the incoming energy flow to the data systems. This prevents energy imperfections such as spikes, surges, sags, noise, frequency irregularities, and harmonic distortions.
There are some techniques data management specialists employ upon the use of UPS on specialized conditions. Terms such as N + 1 and multiple redundancy are used in huge data networks to describe the use of multiple UPS in rotations to ensure the functioning of other systems in case one of them fails. For outdoor use, UPS manufacturers have introduced pole, ground or host-mounted systems. Battery heater mats and additional air conditioning fans are sold separately for use on cold and humid weather respectively.
Now that you have discerned the importance of computer battery backups, it is high time you secure one yourself for better data protection. The first most important move is to determine how much electricity your system needs through online wattage calculators that you can search for extensively or through personal consultation with your computer specialist.
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The iPad Travels the world, via eBay
Leave it to the early adopters to find a way to get their hands on an iPad even if they live abroad, where Apple will not begin selling iPads until the end of May.
EBay has been observing a brisk trade in iPads, with 65 percent of those sold on the site going to buyers in other countries. International sales spiked in mid April, when impatient foreigners learned that Apple would delay international sales by a month because of unexpectedly high demand in the United States.
Geeks in the United Arab Emirates could not wait to get their hands on the big, smooth touch screen. They paid $537 over the retail price for the iPad, more than anywhere else. Greeks, despite their country’s debt crisis and forced austerity measures, were not so austere when it came to the iPad. They were willing to pay $269 above retail.
British tech nerds bought 550 iPads on eBay, the most of any country, though Canada and Australia were close behind.
Arabs wanted the most high-powered version, snapping up the 64 GB iPads, while the Russians who bought 215 iPads were content to settle for the 16 GB version.
Some Apple addicts outside the United States will have to search eBay for only a few more weeks. On Friday, Apple announced that the iPad would be available on May 28 and for pre order on May 10, in Australia, Canada, France, Germany, Italy, Japan, Spain, Switzerland and the United Kingdom.
Those in Austria, Belgium, Hong Kong, Ireland, Luxembourg, Mexico, Netherlands, New Zealand and Singapore will have to wait until July.
No word on when other countries will get the iPad, so if you have an extra one hanging around, there is probably a tech nerd in Dubai, Moscow or Athens ready to make you a deal.
Microsoft Windows 7
Microsoft Win
dows 7 more than spin. This is a stable, smooth and polished, the introduction of new graphics and control devices, and security enhancements that make it easier and safer. Importantly, it does not require hardware upgrades that Vista requires, in part because the hardware caught up, and partly because Microsoft went to great lengths to make Windows 7 available to as many people as possible.
Microsoft offers six versions of Windows 7: Starter, Home Premium, Professional, Ultimate, OEM, and Enterprise. Three versions that Redmond will be the promotion of the most severely are the Home Premium, Professional, and Ultimate, but for beginners also will be available to consumers. Robust and Microsoft do not always go together, but it does in Windows 7. You can take a while to get used to new challenges and Aero Peek, but are pleasant to use.
Windows 7 will support both 32-bit and 64-bit systems. The bare minimum requirements for the 32-bit include a 1GHz processor, 1GB RAM, 16GB available hard-disk space, and a DirectX 9 graphics device with WDDM 1.0 or higher driver. 64-bit systems will require at least a 1 GHz processor, 2GB RAM, 20GB of free space on your hard drive, and a DirectX 9 graphics device with WDDM 1.0 or higher driver. A Touch screen monitor is required to use the Touch family. Note that some users claimed that the limited success of the launch of Windows 7 Beta 1 GB of RAM, but not recommended.
Windows 7 looks like an operating system like Microsoft and its customers were waiting. The setting of most of the perceived and real problems in Vista, Microsoft has laid the foundation for the future, where windows will go. Windows 7 is a stable platform that can compete with the convenience of OS X, ensuring that the world is still strong, the operating system useful.