Showing posts with label Computer. Show all posts
Showing posts with label Computer. Show all posts

Dec 13, 2015

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Nov 1, 2010

ComPacific

ComPacific is a complete computer store (Total IT Solution) with two locations in Guam, Yap, Chuuk and Pohnpei. We BUILD, upgrade and service computers and laptops and any other digital equipment. We provide IT solutions for businesses and our technical staff is certified to do the best local service on Guam and other islands. With ten years of experience behind us, we have established a reputable company with a friendly atmosphere and service-oriented attitude. Please visit us and experience friendly IT people.

Contact Number:  (671) 477-6677

Location:  1st floor across Payless Supermarket

Store Hours:  Monday - Saturday (10:00 AM to 8 PM)
                        Sunday (10:00 AM to 6 PM)



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Jul 16, 2009

Things to Consider When Buying a Laptop Computer

Purchasing a laptop is a large investment, and one that can be complicated by all of the options, manufacturers, and technical mumbo-jumbo that needs to be sifted through. Before you spend a lot of money on a laptop, it is important to spend a little time considering some basics that may affect the decision-making process. This Tech Tip will take a look at five of the innumerous things worth considering when buying a laptop computer.

  • Ergonomics

If you are going to be spending any significant amount of time working on this laptop computer, you’re going to want to be comfortable. A well-designed interface is essential for comfort, as well as good health. Carpal tunnel syndrome or tendonitis may be some of the more common conditions associated with extended computer usage, and selecting the most comfortable laptop may help avoid them all together.

The keyboards on laptops generally feature compressed layouts with smaller keys, which may place a strain on hands and wrists as users try to adapt to these miniature arrangements. Generally speaking, the larger the laptop, the larger the keyboard, as they are usually designed to span the entire width of the unit.
Most laptops use either a touchpad or tracking pointer (knob) as a replacement for a mouse. These may be adequate for occasional use, but even the best designs can become frustrating and uncomfortable when used extensively. Plus, when used for game play or other applications where precise motion is critical, they just don’t cut it.

Purchasing a separate mouse may be the best bet, as it allows you to place your arm in a more familiar (and comfortable) position, as well as providing something that may fit your hand much better. Notebook mice are available in a wired or wireless version, and generally feature a slightly smaller footprint than your typical mouse.

  • Connectivity

Being able to connect to common devices is just as important on laptops as it is on desktops, but being able to add these connections down the road is not as easy on a laptop. Upgrades aren’t as easy on laptops due to the basic design, so make sure what you need is included up front.

Wireless networking is almost a must-have feature on laptops now. The cord has been severed to every other shackle confining you to your desk; don’t let network connectivity hold you back. Wireless networking adapters are available as upgrades via either PCMCIA cards or USB adapters, but many now offer it onboard, hidden inside the system’s housing. Integrated wireless is the best option if available, as it requires fewer accessories to carry and to configure, and leaves those expansion ports open for other uses.

USB 2.0 may be the most common peripheral connection, and many laptops may still come with just one port. That’s fine if you don’t mind carrying around a USB hub, but the more you have to carry, the less mobile you are. A good example of the importance of USB is that many people decide they want to use a separate mouse for ergonomic reasons, and generally it will connect via USB. On a laptop with just one port, you now have to juggle the use of the mouse with connecting anything else, like a digital camera, MP3 player, or an external hard drive.

Firewire may not be as popular as USB, and as such, it doesn’t show up at all on many computer systems, regardless of whether they are desktops or laptops. Having this connection may not be necessary for everyone, but for those who want it, keep in mind that its inclusion on any particular laptop is not a given.

Bluetooth is another type of connectivity you may want in a laptop, but its popularity has yet to really catch up to its hype. More and more consumer electronics devices are starting feature Bluetooth technology, but for general computer applications, it may be more trouble than it is worth.

  • Power Management

If you are going to use a laptop as it was intended, away from your desk, you’re going to want it to provide as much battery life as possible. The first step is to shop around for a unit that offers the best battery life possible, and then seek out independent reviews to verify this performance. A good laptop should be able to run for four hours or more on a full charge, and as the technology advances, finding units that can double this time isn’t unrealistic.

The operating system on most laptops will allow for the hardware to be configured to utilize the battery as efficiently as possible. It is just up to the user to navigate their way to these tabs and set things like the display to turn off, hard drives to power down, or even the processor to slow down when it isn’t needed to run full speed. Not all processors can provide this speed throttling, but finding a system with a Mobile Pentium/Celeron or Centrino processor may be your best bet to ensure this capability.

Another way to ensure extended life away from a power outlet is to just add a second battery. Although you can obviously carry a charged spare in your bag, some laptops allow for two batteries to be installed at once, with one generally replacing the optical disk drive.

  • Size / Weight

All laptop computers are not created equal, and the size and weight of the various models reflect that. Some may weigh more than others due to the quantity of components included, but it may also be due to the quality of the components. Larger displays, multiple hard drives, and other integrated components will all contribute to the weight of a laptop. The largest single source of weight in a laptop may be the battery, and systems with two batteries as described above, should be expected to be much heavier.

No laptop may be considered heavy in the grand scheme of things, but just a few pounds more may be noticeable if you regularly have to lug it through a busy airport or across a large college campus. Geeks.com may not provided the exact weight of each laptop they carry, but they do provide a shipping weight for each, which is a good approximation of what the laptop and various accessories will weigh when loaded into your carrying bag.

The overall size of a laptop is generally governed by the size of the display included. You may have seen the commercial where Yao Ming (7’5” basketball player) and Verne Troyer (Mini-Me) compare their laptops with 12 inch and 17 inch monitors. It is an excellent demonstration of the range of sizes available in laptop computers, and how the various sizes may be appropriate for different users. Those seeking a replacement for their desktop computer may insist on a 17” display, while those seeking to minimize size and weight in the name of portability may be willing to select a laptop with a smaller display.

  • Future Proof

Basically, purchase as much laptop as you can afford, so that a year or two down the road you may be less likely to need a replacement.
Processors in a laptop are generally not upgradeable, or at least quite difficult to upgrade, so picking something with marginally adequate speed for today’s needs will no doubt be obsolete sooner than you might expect. Desktop computers generally offer the convenience of having their processors (and other components) upgraded, making it less of an issue, but it is important to plan ahead with laptops, or to plan on buying another one in a few years.

The graphics processor is another integrated feature that should be considered before making a purchase, as there is no upgrading. Many laptops may offer somewhat basic graphics intended for good 2D display and 3D displays that may be hit or miss as far as the quality is concerned. In general, laptops were never intended for 3D gaming, but things are changing and many manufacturers now offer higher performance graphics solutions that can rival many desktop computers. ATI is well known for their high performance graphics products, and offer the Mobility Radeon X series of graphics processors based on their popular desktop solutions.

Laptop memory is less of a bottleneck, as it is readily available and can be upgraded rather easily. That said, many notebooks offer a base configuration of memory that may not be adequate for your particular needs. It is suggested that a Windows XP system have a minimum of 256MB of memory, and you may find that this is what is offered on many systems. 512MB is the recommended amount of memory for smooth operation on Windows XP, and many users with more intensive applications to run may insist on 1024MB. If you intend to run serious business applications or want to play some modern 3D games, it may be worth having that base 256MB upgraded before the laptop ships to you.

Final Words

Picking a laptop computer will probably be more involved than reviewing five simple steps, but you have to start somewhere! Each of these steps will hopefully guide other decisions and make the process less frustrating, while also leading to the selection of the best laptop possible.

Information on Installing Windows XP

XPlogo In this Tech Tip, I will give you some information about installing Microsoft Windows XP on your computer. Most Windows XP products including Windows XP Professional and Windows XP Home Edition install the same way. If you are using an older version of Windows, or even one of the other versions of Windows XP, the steps will probably be a bit different.

Back up your files!If you are currently using an older version of Windows, such as Windows 98, we highly recommend that you back up all your files to another drive and do a clean install by reformatting your hard drive and installing Windows XP as a full install rather than as an upgrade. Often, upgrade installations don’t run as well as full, “clean” installations. For this Tech Tip, we will assume that you are installing Windows XP on a new computer that has never had Windows on it.

Before you start, ensure that your hardware is correctly installed, then place your Windows CD into the CD or DVD drive on your computer and reboot your system. If you don’t have your BIOS set to boot from CD before your hard drive, you will likely encounter problems. However you can go into the BIOS by pressing the appropriate key when prompted during the POST (Power On Self Test). Typically, you will press the “delete” key, but this can vary from one motherboard and BIOS to another.

Once you are in the BIOS settings, look for the boot sequence tabs. Each motherboard vendor usually has a different BIOS set up. Check your motherboard owner’s manual for more information if you can’t find the boot settings menu. Once you have modified the BIOS settings, save them, exit the BIOS and reboot. If the boot sequence is correct, you should see the screen reading “Windows is preparing for installation”.

After the software has copied the required files to your computer, you will be asked if you want to install Windows -- click “enter” to begin the actual install process. The next screen you see will be the End-User License Agreement (EULA). You can’t begin the installation without accepting the EULA. Follow the prompts to either accept or decline.

As you will see, the EULA is quite long and most likely hasn’t been read since the Microsoft attorneys drafted it. In a nutshell, it says you won’t pirate the operating system (OS). If you decline, you will not be able to continue with the installation.

After you accept the EULA, you will be taken to a screen that asks you to choose your file system. Your options are NTFS (New Technology File System) or FAT32 (File Allocation Table 32). FAT32 is the older file system used with Windows 98. NTFS is the preferred choice for a Windows XP installation and our recommendation. The NTFS file system has improved functionality for security and data integrity and was first introduced in the Windows NT operating system. Choose the file system for your installation and press “F” to begin the formatting and installation. If you had any data on the hard drive you are using, it will be lost at this point. However, if you took our advice earlier and backed up your files, you should be okay.

If you are using a SATA (Serial ATA) hard drive, you will get an error message and will need to start the install process over. Keep an eye out for the message at the bottom of the screen that prompts you to “press F6 to install a third-party driver”. At that time, go ahead and press F6 and follow the prompts to install the SATA (or RAID) driver. This is the point where that “optional” floppy drive comes in handy since the only way to install drivers in this screen is via floppy disk. Place the floppy with the correct drivers for your SATA or RAID array into your floppy drive to install the drivers. After the drivers are installed, you are ready to move on.

Once the format is successful, the Windows installation process automatically installs the required files and reboots when needed. After a couple of reboots you will be asked to activate Windows by choosing a user name and a password. Windows activation is the process of enabling unrestricted use of Windows via your Internet connection with the Microsoft servers. If you don’t complete activation during the initial loading, Windows will shut down after 30 days and you won’t be able to use it. But don’t worry -- you do have 30 days to activate it after the first time it runs.

There are very few motherboards utilizing a network (RJ45) jack for broadband connection that do not require drivers to operate. If the network jack on your motherboard requires drivers and you use a broadband connection to access the internet, you won’t be able to use the internet to activate Windows until you install the drivers on your hard drive. If you are connecting via dial-up, you will need to make sure the drivers for your modem are installed before activating. If you don’t have an internet connection just yet, your Windows software paperwork should have come with a number you can call to activate. Once the drivers are installed, you will be able to select “Activate Windows” in the Start menu to complete with Windows activation process.

Windows XP DesktopAfter a fresh install, the icons for some of the familiar Windows components like “My Computer”, “My Documents” and others will not be on your desktop. If you want to add them, simply right click your mouse in a vacant space on the Windows desktop. Select “properties”, then “desktop”, then choose “customize desktop” at the bottom of that window. You will see check boxes for the common desktop icons there as well as the checkbox for the clean desktop wizard. Once you choose the icons you want on the desktop, select “apply” and close the window. Your icons should now be on your desktop.

After you have activated Windows, you will be ready to begin installing other programs. Installing Windows XP isn’t as daunting as it seems to be at first glance. Simply follow these instructions and the onscreen prompts and you will be fine. If at any point you get stuck on the install process, you can refer back to this tip, or the myriad of other online resources for installing Windows XP. Happy computing!

Jul 15, 2009

Ways to Back Up Your Data

The data on your hard drive is the most critical item inside your computer, and the only item which can not be replaced. It may be an unwanted hassle and expense to replace a defective memory module, monitor, or processor, but there is no replacing data once lost.

In addition to the possibility of a simple hard drive failure, the threat of internet borne worms and viruses has become an increasing risk to data loss or corruption. Although you may not be able to provide absolute protection to your hard drive, there are various ways that you can ensure that the data on your hard drive is protected. Five methods of backing up your data are summarized below.

1. USB Flash Drives

Although I am not recommending that flash drives be used for the actual data storage, they are a convenient means of transferring data from one computer to another. Important files can be quickly loaded onto a device such as the MINIDISK-512-DGRY-CS USB 2.0 Flash Drive, and transported to another computer for safe keeping. Installation and operation is extremely simple, and other than perhaps having to install a software driver, the use of a USB flash drive is a matter of having an available USB port on your computer. Just about every computer produced over the last several years has USB ports included, with more modern systems supporting the USB 2.0 standard. USB 2.0 allows for data transfer rates of up to 480 MB/s, which is a tremendous improvement over the original USB speed limit of 12 MB/s, and allows a user to fill their drives with data in a relatively short period of time.

Although the storage capacity of flash drives has increased greatly over the last year or so, users are still limited to common sizes of 512MB and 1GB. Mass storage is obviously not an option, but even 512MB may be enough to backup your "My Documents" folder, several albums of MP3s, or other important files to be stored elsewhere.

2. CD and DVD Writers/Re-Writers

The falling prices of CD and DVD writers/re-writers have made them a staple of just about every modern computer. These devices can typically be found installed in a computer case, but external devices supporting USB 2.0 or Firewire are available for greater flexibility and ease of installation.

A combination drive, such as the NU Technology DBW-521, will provide the user a high speed CD reader/writer, as well as a DVD reader, for under $40. The extremely low price of the drive (and the blank media) makes for an inexpensive means of creating data backups, and the re-writable media increases the convenience by allowing the same disc to be erased and reused many times. The main limitation of using a CD writer for data backups is that the discs are generally limited to a capacity of 700MB per disc. Not nearly enough for a full backup, but adequate for archiving key files.

The popularity of DVD writers/re-writers has surged thanks to dropping prices, and they are pushing the stand alone CD burner towards extinction. DVD media affords the user far more storage capacity than a CD, and DVD burners can generally burn CDs as wells as DVDs. The recent availability of double layer DVD burners, such as the Sony DW-D22A-DO-N, represents a large boost in the capacity of writable DVDs, taking the previous limit of 4.7GB per disc and nearly doubling it to 8.5GB.

With proper storage, CD/DVD media can provide long term storage that can not be jeopardized by hardware failure. The data on a CD or DVD can easily be read by just about any computer, making it a good choice for archiving files that aren't excessively large.

3. External Hard Drives

As the name might imply, external hard drives are generally the same type of drive you might find inside your system, but housed in a smaller, external enclosure of its own. The enclosure will feature at least one data interface (such as Firewire, USB, or Ethernet), and the capacity is only limited by the size of hard drives presently available and the user's budget.

The Ximeta NetDisk is an example of an external hard drive that provides a user the option of connecting an additional 80GB, 120GB, or 160GB of storage to their system by using either a USB 2.0 or Ethernet connection. Installation for such a device is rather simple, and may involve the installation of some basic software, as well as making the necessary connections between the computer and the external enclosure.

The capacity of external hard drives makes them ideal for backing up large volumes of data, and many of these devices simplify the process by including software (or hardware) features to automate the backup.

For example, some Seagate External drives feature a "one-button" backup option right on the case.In addition to being a convenient method of backing up large volumes of files locally, most external hard drives are compact enough to be portable. The inclusion of a common data transfer interface, such as USB, allows an external hard drive to be connected to just about any modern computer for data transfer, or for more than one computer to share the external hard drive as a back up.

4. Additional Hard Drives

By simply adding an additional hard drive to you system, you can protect yourself from data loss by copying it from your primary drive to your secondary drive. The installation of a second hard drive isn't difficult, but does require a basic understanding of the inner working of a computer, which may scare off some users. We do offer a "how-to" section on our site for many tasks such as installing a hard drive into a computer system.

To take the installation of a second hard drive to another level of security and reliability, the hard drives may be installed in a RAID array. RAID stands for a Redundant Array of Independent (or Inexpensive) Disks, and can be configured in several manners. A thorough discussion of RAID and all of its variations would be an article all by itself, but what may be of interest to this discussion is what is known as RAID 1. A RAID 1 array requires two hard drives of equal size to be installed on a RAID controller, which will then mirror one drive to the other in real time. Many motherboards now come with RAID controllers onboard, but the addition of a PCI slot controller card, such as the Silicon Image Sil0680, is an inexpensive purchase that will add RAID to any system. With a RAID 1 array in place, if one hard drive should ever fail, the system won't miss a best by continuing to run on the remaining good drive, and alert the user that one drive may need to be replaced.

5. Online Storage

Online services, such as Xdrive and Windows Live’s Skydrive, allow users to upload their files to a server for safe keeping. Although it may be convenient to have the data available wherever an internet connection is available, there are a few limitations.

The services generally charge a monthly fee relative to the amount of storage space required. At Xdrive, for example, 5GB of storage costs $9.95 per month, which can quickly add up to more than one would spend on any of the other options discussed.   While Skydrive offers 25GB of free online space.

Security is supposed to be very tight on these services, but no matter how secure it may seem, it is still just a password keeping prying eyes from your potentially sensitive documents.

The speed of your internet connection will also weigh heavily on the convenience of your backup, and no matter what type of connection you have; it can't compete with local data transfer rates.

Final Words

Although not a comprehensive list of options available for backing up your data, the five items listed provide some simple and relatively affordable means to ensure that your data is not lost. Data loss is an extremely frustrating and potentially costly situation, but one that can be avoided.

Jul 13, 2009

How to Really Speed Up Computer

When I was buying my laptop all I had in mind was performance. I wanted to have core2duo, 2 Gb of ram, discrete graphic card and Vista operating system. I thought with that specs, especially with core2duo, my laptop would fly with speed. And finally when I got it I had a terrible experience. Laptop was sooooooo slow like it was running celeron processor! I knew Vista was not the fastest operating system  but I tweaked it and removed all unnecessary applications and services…. but performance was not much better. Which component was causing this?

 computer-ram   Processor      SamsungF1HardDrive

I knew processor was fast and it could not be the bottleneck because task manager showed utilization between 5-15%. Ram could not be guilty for there were 2 Gigabytes. Maybe video card. Not a chance because nvidia 8400 gt was deffinitely capable of running vista. Than there were too options left. Operating system or hard drive. Vista was definitely partialy guilty but not that much. If the code was badly written-with many turning instead of less coding lines, processor would probably take the burden and utilize more. But it did not. It was merely working. So the only thing that remained was hard drive. And I was right.

Do not take me wrong processor is important, but by far the slowest computer part is HDD. So I went for it and bought new faster 7200 rpm hard drive. Than I noticed much faster performance and application launch time. And I remembered a sentence I read somewhere: “computer is that fast as the slowest component inside”. And the slowest part was Hdd. Processor is much much faster, ram approximately 30 times faster than hdd, video card has multi processor-core, but Hdd…. that fellow is slow.

I also find misleading hdd vendor information where thay state that e.g. hard drive can sequentially read or write at a rate of 100 Mb/s.  Yeah, but what about in real world. Divide that number by 10 or at least by 5 and now you get the real picture. Most of hdd-s can boot for example xp operating system at a rate between 7-10 Mb/s. Now this is not 100 Mb/s is it? Not at all.

So the next time I am going to buy laptop, I will definitely have in mind fast drive, probably solid state drive and not quad-core processor. Nowadays everyone(e.g.intel and other banchmarking companies) emphasizes the importanance of cpu and tries to convince us that new cpu with fater fsb and second-data level cashe is going to make miracles in speed and that we definitely need it……Well that is all good but with slow hard drive it will not make much difference. Cpu will be taking “vacation” anyway if it does not get enough and fast all the data to work on.  Just imagine ferrari on traffic-jammed highway. It can not go any faster than a truck can, right?

So if you want to speed up computer, my advice is to invest your money in faster hard drive or even SSD drive instead in cpu. You will be surprised how much faster your computer can be. I was! Please also take in account that this is general guidance in most every-day situation, when you also meet basic hardware  requirements for certain operating system. If you are an advanced user it makes sense to upgrade cpu and ram as well but still not that much as upgrading HDD.

Jul 11, 2009

Windows 7 System Requirements

System requirements for Windows 7 aren’t any great mystery, but now we’re getting a much better idea of what it’ll say on the retail box. According to early tests, Windows 7 performs better than Windows Vista on the same hardware.

  • 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
  • 1 GB of RAM (32-bit)/2 GB of RAM (64-bit)
  • 16 GB of available disk space (32-bit)/20 GB (64-bit)
  • DirectX 9 graphics device with Windows Display Driver Model 1.0 or higher driver

For reference, Windows Vista’s system requirements are:

  • 1 GHz processor (32- or 64-bit)
  • 512 MB of RAM (for Home Basic); 1 GB of RAM for all other versions
  • 15 GB of available disk space
  • Support for DirectX 9 graphics and 32 MB of graphics memory (for Home Basic); 128 MB of graphics memory plus WDDM support for all other versions

Windows 7 Tips and Tricks

There are plenty more Windows 7 tricks up floating around. Leave a comment and keep expanding this list!

  • Windows key + Left: docks current window to the left side of the screen.
  • Windows key + Right: docks current window to the right side of the screen.
  • Windows key + Up: maximizes and/or restores foreground window.
  • Windows key + Down: minimizes active window.
  • If you want a more Vista-esque taskbar rather than the superbar (why anyone would revert is beyond me), right-click the Taskbar, go to Properties, check the ‘Use small icons’ option, then change the “Taskbar Buttons” option to ‘Never combine.’
  • Windows 7 now burns ISO files themselves instead of making users grapple with third-party applications.
  • For those lucky people with a multi-monitor setup, Windows + SHIFT + Left (or Right) will shift a window from monitor to monitor.
  • Gone is the “Add Font” dialog. It’s been replaced with a much nicer system. Download a font and double-click it (you’ll be greeted with the familar font window, but you should notice it now has a ‘Install’ button).
  • Windows 7 now includes Gabriola. This is an elaborate display typeface that takes advantage of OpenType layout to create a variety of stylistic sets.
  • If you press Windows + 1, it will create a new instance of the first icon in the task bar. This is handy if you do a lot of coding and need to open several instances of a program.
  • If you right-click on a Taskbar icon, it brings up the much talked about Jump List. However, the same can be done by clicking with the left mouse button and dragging the icon “out” (so to speak). This was specifically designed for touch-enabled computers, such as your lovely HP TouchSmart PC.
  • To run a program as an Administrator, it’s now as easy as holding CTRL + SHIFT when you open the application.
  • With Windows 7, you can now create a ‘System Repair Disc.’ This is a CD bootable version of Windows 7 that includes the command prompt and a suite of system tools. Very handy for those really tough spots (which, with this still in beta, could be just around the corner). To get to this, simply open the Start Menu and type: “system repair disc” in the search field.

Jul 10, 2009

Customize Vista OEM Logo and Information

Usually OEM manufacturers add their logo and Information to OEM manufactured PCs, so maybe you want to get rid of it or want to customize it or even maybe you want to add your info instead of the OEM info? well here is a neat little trick for you to customize the OEM logo and information found on System Properties Applet on Vista.

systemprop-thumb

  • Select a new logo to change, this file should be 120×120 pixels and in BMP format because if its larger it will be re sampled and may produce undesirable effects.
  • Click Start button and select Run, and type regedit.
  • When the Registry editor is open, navigate to the following loacation:
  • HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ OEMInformation
  • If you do not find this, then your OEM info is missing and you need to create it.
  • Follow this table to create a set of values
vistaoem

  • Now you can customize to your hearts? delight.
  • To change the logo, change the path to your new bmp file. Better to have it in C drive.
  • You can change other info like Manufacturer, supporthours, supportphone, etc.
  • After all customizations exit the registry editor.
  • Now go to your System Properties and see the changes for yourself.

Jul 9, 2009

The Difference Between DVD and Blu-ray

Blu-ray has finally won the high definition format war, but that is just the beginning. There is a lot of confusion out there among the general public about the difference between DVD and Blu-ray discs. Although Blu-ray discs look exactly the same as DVDs in size and shape there are many differences between the media, including storage capacity, laser technology, disc construction, image resolution and player compatibility.
Storage Capacity
Storage capacity is measured in gigabytes (GB), like computers and iPods. The more GB the disc has more information it can hold.

  • DVD- Single layer DVDs can store about 4.7 GB of data, which is about two hours worth of movie. These are commonly referred to as DVD-5s. Double layer DVDs, or DVD-9s, can store twice the amount of data at 8.7 GB. This equals about four hours of movie, or one “Lord of the Rings” movie.
  • Blu-ray- Single layer Blu-ray discs store approximately 25 GB of data, this equals about two hours of high definition information or 13 hours of standard definition information. Double layer Blu-ray discs can hold about 50 GB equaling about four and a half hours of high definition information or 26 hours in standard definition. Potentially you could put all three “Lord of the Rings” movies on one double layer Blu-ray disc.

Laser Technology
Lasers are used in both media to read the information stored on the disc. As the disc spins the laser reads the information and transfers both picture and sound to the television.
  • DVD- DVD players use a red laser at 650nm wave length to read DVD discs. As the disc spins the laser reads the information encoded on the media and produces an image and sound on your television.
  • Blu-ray- Like the name suggests Blu-ray players use a blue laser to read the stored information. Blue laser wavelengths are shorter than the red at 405nm and are about two and a half times smaller in diameter than red lasers. This allows for closer and more precise reading of information stored on the disc.

Disc Construction
Physically, Blu-ray and DVD discs are identical. Both media have grooves or pits on their bottom layer than enables the laser to penetrate through and read the stored information.
  • DVD- Since DVDs are read with a red laser the grooves on its underside need to be wide enough to accommodate the larger wavelength. Because the grooves are so far apart only 4.7 GB of information can be stored on each layer of the disc. DVDs also include a protective layer designed to resist scratching.
  • Blu-ray- The grooves on a Blu-ray disc are much thinner and closer together because the blue laser used to read the disc has a shorter wave length and is two and a half times thinner than the red laser. This allows the Blu-ray disc to squeeze almost five times as many grooves on to a disc exactly the same size as a DVD. Blu-ray also includes a protective layer to prevent scratches. This protective layer is physically thinner than the one on a DVD, but it has a hard coating that makes it more scratch resistant.

Image Resolution
Image resolution is measured by the number of vertical lines times the number of horizontal lines of light in a picture. It is represented by the number of horizontal lines going across the screen like 480, 720 or 1080. The higher the number the higher the resolution and more detailed the picture.
  • DVD- Almost all DVDs have a standard definition resolution of 480 or enhanced definition resolution of 520. These resolutions look great on a standard “tube” TV utilizing all available pixels on the screen. However, if blown up to accommodate a widescreen HDTV the picture may look grainy. Although a DVD can store high definition data it would only fit about 30 minutes maximum.
  • Blu-ray- Blu-ray was designed for high definition 1080 display. Since they can store 25 GB of data you can fit an entire HD movie on a single layer disc. Blu-ray currently has the best image resolution on the market and looks great on HDTVs. Blu-ray discs are one of the few signal sources that displays in 1080, not even HD cable or satellite companies can claim that yet.

Player Compatibility
Some of us are still recovering from the VHS to DVD format switch of almost 10 years ago, slowly upgrading our VHS collections to DVD. Now, there is a new, better format on the horizon and many are still skeptical. However, you’ll be happy to hear that all Blu-ray players support DVDs.
  • DVD Players- Blu-ray discs cannot and will not play in a standard DVD player, because the red laser used in DVD players is too large to read the tiny grooves in a Blu-ray disc.
  • Blu-ray Players- All Blu-ray players currently on the market (including the Playstation 3) are backwards compatible and will still play standard DVDs. However, the DVD image displayed, while still decent, will not be high definition quality like a Blu-ray disc.

Fear not technophobes, the transition from DVD to Blu-ray will be relatively painless once the price of Blu-ray players starts to come down. With the exception of storage capacity perhaps the best thing Blu-ray has going for it is its higher image resolution and compatibility with standard DVDs. To find the Blu-ray player that fits your budget see our Blu-ray DVD players review.

How do you speed up computer performance?

There are several things you can do to increase the "speed" of your computer. I will mention that you do upgrade your RAM as you do not have sufficient memory for Vista. You need at least 1GB but I recommend 2GB.

  1. Clean up the disk. Uninstall unneeded programs (especially those that run at startup and/or put something in the system tray), run Disk Cleanup, and defragment the drive. This is a good first step that will almost always take a few seconds off boot time and application loads for any computer.
  2. Stomp auto-starting programs. Click Start > Run and type "msconfig" at the prompt. Click the Startup tab and look at all that junk that loads when you launch your PC. Do you really need "Adobe Reader Speed Launch"? Probably not. Turn off anything else that looks useless, but be careful not to disable your anti-virus and important system components.
  3. Run a full anti-virus and anti-spyware scan. I would recommend using AVG Free Anti-virus, Spybot - Search and Destroy spyware remover and Ad-aware spyware remover. These programs are all free.
  4. Clean up the registry. CCleaner, available at http://www.ccleaner.com is free and worth running. It will also remove unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space.

Those are the easy and free things you can do. If your computer is still slow you need to move on to the bigger guns.

  1. Upgrade RAM. This is the one killer trick that will make almost any computer run faster. With an older PC, you will rarely have enough RAM to run today's memory-hogging operating systems and applications, and adding a high-capacity stick or two of quality RAM will give you a quick speed boost. Adding RAM is fairly simple, even for a novice, and you should be able to do the job in 5 or 10 minutes.You can run a free test at http://www.crucial.com and find out what kind of RAM (memory) your computer needs.
  2. Reinstall Windows. If the above tricks haven't helped, it may be time to wipe the slate clean and start again, reformatting your hard drive, reinstalling your applications, and restoring your data files from a backup. You'd be surprised how much more responsive a freshly reinstalled Windows system can be, as you've wiped out years of temp files, garbled registry entries, old versions of software programs that have been upgraded repeatedly, and all sorts of other electronic junk. Reinstalling is easy if you have the "recovery disk" that came with your PC, and only a bit more involved if you're using a retail copy of Windows XP. Just be sure you back up everything you want to take with you before you pull the trigger!
  3. Upgrade your hard drive. This is a more complicated solution, but if you're reinstalling Windows (per the prior tip) you might consider upgrading to a bigger and possibly faster hard drive, too. Hard disk storage is a performance bottleneck on every machine, and magnetic disks degrade over time. Some performance issues could be caused by a failing hard drive, even, and upgrading to a new model could really put some zip back in your system. As a bonus, you can use the original hard drive for backups or occasional storage, if you put it in an enclosure.

Jul 8, 2009

Disabe IPv6 in Windoes Vista

Have you ever wondered why your torrents are slow and you are experiencing low torrent download rates?

well the answer for that is, Its because of IPv6, a new tachnology which impreoves the speed a lot if you are connected to a VERY High speedcorporate lan, but since if you are a home user,you would want to disble it and get more juice out of your internet connection.

Simply use browse to this location in your registry editor (Start–> Run–> regedit)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters

Create a new key which exactly spells like this “DisabledComponents” (without quotations)

and modify its binary data with the following hex value: FF

If you are curious what each bit of the DWORD does, here you go:
Disable all tunnel interfaces:
0×1

Disable 6to4:
0×2

Disable ISATAP:
0×4

Disable Teredo:
0×8

Disable Teredo and 6to4:
0xA

Disable all LAN and PPP interfaces:
0×10

Disable all LAN, PPP, and tunnel interfaces:
0×11

Prefer IPv4 over IPv6:
0×20

Disable IPv6 over all interfaces and prefer IPv4 to IPv6:
0xFF (this is what the above RegKey does)

Jul 5, 2009

Disable Error Reporting in Windows XP

Error reporting, what is it and why does Microsoft want you to have it on?  Basically whenever your computer crashes Win XP makes a little report of what went wrong and then sends it to Microsoft so they can improve the Windows Operating System.  Generally it sounds like a nice idea, but do you really want to be sending reports about your computer to Microsoft?  I personally don't and they allow you to shut off this feature.  Here's how you do it:

  1. Open your control panel
  2. Click on Performance and Maintenance
  3. Then click on System
  4. Go to the Advance Tab
  5. Click on the Error Reporting button at the bottom
  6. Select Disable Error Reporting
  7. Click the "But notify me when a critical error occurs"
  8. Click Ok Twice.

You can leave out step 7, but I like my operating system to tell me when its had a major error, mainly because I can look up the cause of the error and hopefully find a solution to it on the net or at Microsoft.  There you have it, error reporting to Microsoft is off and you don't have to worry about sending a report to Bill Gates.

How to Fix The Kernel32.dll Error

The Kernel32.dll file handles memory management, input/output operations, and interrupts. When you start Windows, Kernel32.dll is loaded into a protected memory space so that other programs do not take over that memory space.

On occasion, you may receive an invalid page fault (IPF) error message. This error message occurs when a program tries to access the Kernel32.dll protected memory space. Occasionally, the error message is caused by one particular program, and other times the error message is provoked by multiple files and programs. 

If the problem results from running one program, the program needs to be replaced. If the problem occurs when you access multiple files and programs, the damage is likely caused by damaged hardware.

You may want to clean boot the computer to help you identify the particular third-party memory-resident software. Note that programs that are not memory-resident can also cause IPF error messages.

The following conditions can cause Kernel32.dll error messages:

  • Damaged swap file
  • File allocation damage
  • Damaged password list
  • Damaged or incorrect version of the Kernel32.dll file
  • Damaged registry
  • Hardware, hot CPU, over clocking, broken power supply, RF noise, ground bounce, or bad hard disk controller
  • BIOS settings for Wait states, RAM timing, or other BIOS settings
  • Third-party software that is damaged or incorrectly installed
  • .dll files that are saved to the desktop
  • Non-existent or broken Temp folder 
  • A control panel (.cpl) file is damaged
  • Incorrect or damaged hardware driver
  • Incorrectly installed printer drivers or HP Jetadmin drivers
  • Damaged Java Machine
  • Damaged .log files
  • Damaged entries in the History folder
  • Incompatible or damaged dynamic link library files
  • Viruses
  • Damaged or incorrect Msinfo32.exe file
  • Low disk space
  • Viruses or Malware

More on the possible causes:

  • Bad memory modules:

You can test your memory modules by inserting the command: DEVICE=C:\WINDOWS\HIMEM.SYS /TESTMEM:ON into your Config.sys file. You can use the System Configuration Utility:

  1. Select Start>> Run and type: msconfig [Enter]

  2. Next, select the Config.sys tab and add the HIMEM.SYS line (above) by pressing the New button.

  3. Windows will tell you to reboot your computer.

  4. Watch your screen for a message; "HIMEM has detected unreliable memory at address xx:xxxxxx" which will certainly indicate that there's a memory problem.

Note: Memory problems may not immediately surface from the result of this test. It may take many reboots or even a few days for the above message to appear. 

  • CPU, bus speed or multiplier overclocking.

  • Graphic acceleration set too high:
Select Control Panel > System, then select the Performance tab, click the Graphics button. Turn down Hardware acceleration by moving the slider a notch to the left, reboot, try again. 
  • Bad or outdated drivers, especially video drivers:

Check with your card manufacturer for an updated set of drivers. Video drivers are updated constantly, it pays to have the latest release, especially if you find yourself having problems with Internet Explorer. 

What to do if you have Kernel32.dll IPF ("Invalid Page Fault") error?
This error occurs when an application tries to access kernel32.dll's protected memory space. It may be one particular program or application, or multiple files and applications. Most kernel32.dll errors are NOT caused by a corruption of the kernel32.dll module.
If the error seems to arise when activating a certain program, application or device, you should try uninstalling and re-installing that program, application or device.
If you frequently receive Invalid Page Fault in Kernel32.dll Errors from different drivers (Explorer, Guide.exe, Msgsrv32, Commgr32, Mprexe and others), it is possible that a damaged password list file is the culprit. Try re-creating your password list file:

  1. In Windows Explorer select your \Windows folder

  2. Press F3. This will bring up the Find: All Files window

  3. In the 'Named' box type: *.pwl

  4. Click Find Now

  5. When a list of found files is displayed, select Edit> Select All> Press Delete on your keyboard

  6. Exit the Find window and restart Windows

Note: This procedure will cause you to lose all of your saved passwords.  Be sure to write them down before deleting so that you can re-insert them as needed.