Top Three Things To Look For In Soundcards

If you remember the days of Atari and “Pong,” you probably also remember the personal computer’s first sound: beep. Yes, you are correct, in the early stages of computing, computers were only able to utter a beep. This sound was used as a warning to the user that something might be amiss. Later on, technicians were able to toy with the length and frequency of the beep, thus creating a bit more variety to the listener.
Fast forwarding to today, special sound cards now enable computers to play 3-D audio, which is extensively used for games, as well as surround sound playback for actual DVDs. Some sound cards even enable computer users to record the sounds around them and create almost professional audio recordings!
Sounds cards’ most basic function is the translation of analog sound waves into digital computer data that may be manipulated in any number of ways. While this sounds fairly straight forward, it is imperative to remember that not all sound cards are created equal, and depending on the extensiveness of your need for this little device, there are some things to consider. Let us take a quick look at the top three things to consider when considering which sound card to use:
Consider the sound card’s bit-rate. No matter what use you will have for your sound card; the bit-rate will affect your enjoyment of the sound. Usually, these cards rate anywhere from eight to 16 bit; however, the most advanced technology now supports 24-bit sound quality. While the numbers appear close, this is the time to remember that the bit-rate is directly related to the clarity and “detail” you will be able to discern when listening to the sounds. Akin to the way resolution of a picture is measured in pixels (and the more pixels the higher the resolution, the crisper the picture), clarity of sound may be expressed via the bit-rate.
Consider the sound card’s connections. At the basic level, sound cards will permit for the connection of a microphone and of speakers. Yet those users, who need additional connectivity for recreational or even professional use, have caused the development of a whole host of additional input and output connections. For example, depending on the card, some now offer connections for multiple speakers to support 3-D and also surround sound. Other connections allow for the connection of synthesizers and other electronic instruments to the computers’ sound cards. The specific form of connector is referred to as musical instrument digital interface (MIDI). USB connections also allow for the hook up of digital audio and video recorders to the sound cards.
Last but not least, consider compatibility with the software you use. The sound card is designed to give the audio portion of your data its due, but if your sound card will not support your software, you will be frustrated at best. For example, if you are a serious computer gamer, you are familiar with DirectX software. This software is a standard for Windows based games, and as such it is updated frequently by Microsoft. Purchase of an older model sound card may not support the latest software update, and thus be useless. For those who are strict music lovers and notice the lack of tuning the second violin in the orchestra has received, there are some other ratings that will be of interest to you. First there is the signal to noise ratio (S2N) which may be measured in DB’s. The lower the signal to noise ratio, the lower the sound quality will be. At the lowest end of the spectrum you may hear humming or whistling in addition to the sound. Secondly, you may wish to evaluate the total harmonic distortion (THD) offered. The higher the THD, the worse the sound quality is expected to be.
Obviously, computers have come a long ways from the original “beep” many of you will remember. With this loss of simplicity, we now find ourselves at a point where it is up to the users to define just how much of this technology they will need, which aspects are the most crucial in compatibility, and how the technology needs to be configured to best benefit the individual user.
Article Source: http://www.articlerich.com - By: Gregg Hall

Data Protection And Hard Disk Recovery Go Hand In Hand

When it comes to hard disk recovery, the best method is to insure that you will never need it. Besides making frequent backups, the following measures will keep your system running smoothly.
Antivirus Protection
New viruses are invented every day, and system security is a concern for every business. Malicious software can damage your system to the point where it will not even boot up. The latest versions of Windows are the favorite targets of malicious programs such as spyware and viruses, and it is helpful to use 2 or more antivirus/anti-spyware programs to prevent destruction or theft of your data.
Spyware Scanner
The clues that spyware is on a computer include a barrage of pop-up ads, a hijacked browser,a sudden or even repeated change of your computer’s Internet home page, the appearance of a new toolbar or new screen icons, malfunctioning keys, random error messages, and most of all, sluggish computer performance. Any sytem with access to the internet is prone to this problem, but there is software to block spyware installation. In addition, make sure all employees using the office network do not download from unknown sites, and set your internet browser security at "Medium" or higher. Install individual firewalls to prevent uninvited users from accessing your network. A firewall blocks unauthorized access to your computer and will alert you if spyware already on your computer is sending information out. Purchase an anti-spyware program from a vendor you know and trust. Set it to read on a regular basis, at least weekly and if possible each time you run your computer. Delete any programs the anti-spyware program detects on your computer.
Computer Maintenance
The best way to avoid having to use file recovery software is to be sure that no corrupt data is stored on your computer. Companies like Norton sell disk optimization programs keep your network running at top speed, correct problem files and maximize the available space on your hard disk. Run disk optimization and anti-virus programs at least once a week.
Hard Disk Recovery
There are disk recovery applications specifically geared to recovering files of a certain format, like graphics files as opposed to word document files, and there are general-purpose programs to hunt for any type of misplaced file regardless of the format. There is no program on the market that can guarantee recovery of every lost file, but you are able to increase your chances for recovery by selecting the appropriate program for the file you are trying to save.
Do-it-yourself programs are a lot less expensive than hiring a data retrieval company that specializes in information recovery, and to save money you should at least attempt to utilize of this type of program before calling a professional.
In addition to recovering deleted files, there exists information recovery programs that can restore files after you have formatted the drive, after a power failure, natural disaster, or even files damaged by a computer virus.
RAID
RAID is short for Redundant Array of Independent (or Inexpensive) Disks, a category of disk drives that employ 2 or even several drives in combination to improve data storage fault tolerance and performance. RAID disk drives are frequently installed on servers but can also run on individual computers. Because of the duplication of data, it is possible to recover files from one or another disk when the need arises.
As you might expect, RAID disk repair is quite a complicated process. However it is one of the most foolproof methods of data storage because the RAID architecture strategically distributes information randomly across the array. However, this sort of architecture demands the services of a recovery professional.
Article Source: http://www.articlerich.com - By: J Schipper

Tablet PC Review - The Best Table PCs On The Market

A tablet pc is a personal computer that has a touch screen. Much lighter and more manageable in small spaces than a laptop, a tablet pc is a truly personal computer. While a built in keyboard is not standard on a tablet pc a keyboard may be plugged in if the user prefers. To enter information on a tablet pc you simply write on the screen. The tablet pc is able to read your writing based on handwriting recognition. The handwriting is stored as a graphic and can be converted to text either in real time or stored and completed after you have finished your notes. If you would prefer to be more natural, comments, notes and doodles can be left in your own handwriting. Tablet pcs use Windows XP Professional as their operating system. There are a wide variety of additional software programs available to customize a tablet pc to meet your individual needs.
Tablet pcs are lightweight and are designed for students and business people alike. With their wireless capabilities tablet pcs are great for checking emails and keeping important files and information at your fingertips.
Tablet pcs on the market
* Hewlett-Packard offers a tablet pc that comes equipped with wireless options, integrated security and an outdoor viewable display. Battery life is up to 5.5 hours and an additional travel battery can be purchased for all day use. This tablet pc comes with a three-year warranty.
* Gateway offers a full bundle tablet pc that comes with USB keyboard, dock for a desktop, and DVD-ROM/CD-RW drive. It is a slate type model and comes with Windows XP Tablet PC software. Standard battery for this tablet pc lasts at least 3 hours. With a weight of three pounds this tablet pc is perfect for students or business people on the move.
* Toshiba is marketing a dockable tablet pc that combines a notebook pc with the versatility of the tablet pc. The fully rotating screen allows viewing in either the landscape or portrait orientation. This model of tablet pc is must for adding personal notes or diagrams to presentations.
Article Source: http://www.articlerich.com - By: Mike Singh

How To Recover Data Or Survive A Hard Disk Disaster

A hard disk drive (HDD, or also hard drive) is a fixed data storage device that stores data on a magnetic surface layered onto hard disk platters.
A hard disk uses rigid rotating platters (disks). Each platter has a planar magnetic surface on which digital data may be stored. Information is written to the disk by transmitting an electromagnetic flux through an antenna or read-write head that is very close to a magnetic material, which in turn changes its polarization due to the flux.

The information can be read by a read-write head which senses electrical change as the magnetic fields pass by in close proximity as the platter rotates.

Disk failure occurs when a hard disk drive no longer operates and the information on it can no longer be accessed by the computer.

This can happen for no reason at all or due to an external factor such as exposure to fire or water or High Magneticwaves or suffering a sharp impact
How seriously the disk failure is varies.

The most serious and well-known kind is the head crash where the internal read-and-write head of the device touches a platter or a magnetic data storage surface. A head crash normally causes severe data loss and, moreover, data recovery attempts may cause further damage if not done by somebody with specialized knowledge.

There are also controller electronics which occasionally fail. If that happens it may be possible to recover all data.

When your computer's hard disk starts to act funny, make sure that you have an up-to-date backup. Then you can prepare some simple diagnostics and possibly repairs. Both Windows and Mac OS come with built-in hard-disk utility software that scans your hard disk for errors and attempts to fix them.

This is what you can do for Windows Steps: 1. Double-click on My Computer to open the My Computer window. 2. Select the disk that you want to diagnose and repair. 3. Choose Properties from the File menu. You can see the Properties window for the drive that you selected. 4. Choose the Tools button. 5. Click the Check Now button under Error Checking Status. 6. Choose either "Thorough" or "Scan for and Attempt Recovery of Bad Sectors." 7. Click on Start.

Tools to recover data are various such as:

There is a Data Recovery Utility which examines your inaccessible hard drive for damages and corruptions and recovers the data back.

Hard drive can be recovered from Windows 9x / ME / NT / 2000 XP / 2003 disk recovery
Supports FAT16, FAT32, NTFS, NTFS5 file system
Provides data recovery from Formatted logical drives
Recovers data from Re-partitioned & Missing/ Lost Logical drives
Lost folder and deleted file recovery.

There is also a partition recovery utility available that helps you in recovering all your important data lost after accidental formatting, virus problems, software malfunction,and file or directory deletion. There are also easy to use FAT & NTFS Partition File recovery Utilities that examine your inaccessible hard drives for damages and corruptions and recover the data.

There are also systems which:

Provide Partition recovery from FAT16, FAT32, NTFS, NTFS5 file systems.
Recover deleted files/folders even after recycle bin has been emptied or use of Shift+Del key.
File recovery from deleted partition, lost partition missing partition or formatted logical drives.
File recovery from Missing or Lost folders.
Recognize and preserve long file names when restoring files & folders.
Multi-Disk Drive Support - Performs NTFS recovery on all IDE, EIDE and SCSI disk devices.

There is also software that recovers corrupt or lost data from floppy disks.

The software supports inaccessible floppy disk data retrieval, FAT, BOOT or ROOT area damaged situations, and rescues various corrupt files from a diskette. BadCopy Pro can recover data from floppy disks that Microsoft Windows identifies as "not formatted", "not accessible", or prompts you to format.

The software does not write data to your floppy disks, but saves the recovered data to a new file that you specify.
It can fix corrupted files on floppy disk.
It can restore damage to a FAT (File Allocation Table) or BOOT area of the disk.
It can repair damage to the ROOT area of the disk, so that files can be listed again.
It can erase Viruses on a diskette.

There is also software available that fixes corrupted or damaged Microsoft Word documents.

There is also a new product on the market; software that creates a Windows CD for you, and creates recovery files so you will not need to format to reinstall Windows.

It has been asked many times "I have Windows XP (or ME), how can I install Windows without having to lose all my files. I only have a Recovery Disk". Well it is really very simple, so long as you have a CD burner; or at least a second hard drive.

Article Source: http://www.articlerich.com - By: frank vanderlugt

Is Your PC Crowding Your Desk?

When your PC eats up almost the entire space in your computer table, it’s time to have a little re-organizing. Desktop computers, especially those bulky CPU’s and monitors could eat up quite a space which could be a room for other essentials such as folder stackers, telephone or fax machine. Nowadays, bulky personal computers can be really heavy to the eyes, especially since in today’s technology, the adage, “bulk is out, thin is in” is the mainstream.

Let’s start with your computer table. Its size may vary depending on your design. It may be wide enough to accommodate two “bulky” PC sets, or it could barely hold one, and you don’t have enough space left for the keyboard or the mouse.

First things first, remove all unnecessary files, folders, papers, trash, coffee mugs and saucers, ashtrays, etc. on your desk. Clear the area. Your computer table should be just that, a computer table and not a hodgepodge of everything else. However, top designers say that there are some essential things that should be within reach (especially for an office desk).

The telephone, for one should be within reach. Some very important and frequently used documents could be stacked inside an upright holder which can cover only a little space and is still within reach compared to when just piled up on top of the table.

However, if the area is already clear, but you can still barely fit a small pen holder on top of it, you should think of getting yourself a bigger desk or… a new set of personal computer.

Super space-saving computers have flooded the market nowadays. Try checking out flat monitors to replace your old, bulky one. Have your CPU re-designed or buy one of those small and slim tower CPUs. Small and compact keyboards are also available, reducing the size of a regular keyboard to almost a half.

And, if you do not have a place to slide your mouse in, try using a trackball mouse. That way, it occupies just that small space and you don’t have to glide it across a wider area.

Or have all of those pieces in one super sleek laptop notebook. People on the go prefer to have a laptop which they can take along whenever and wherever they go. And nowadays, laptops are not at all far behind in terms of technical capabilities vis-?-vis PCs.

It is always a good thing to see a clear and organized computer table. It would compel one to work well, without the mess adding up to the already full and cluttered working brain. And, admit it, it’s nice not seeing those bulky gadgets anymore. It helps ease the heaviness in the mind as well.

Article Source: http://www.articlerich.com - By: Ismael Tabije