Rabu, 10 Desember 2008

How to Restore Old Photos with Photoshop

by: Michael Wysmierski

There are times that people may have old photographs they would like to restore to save the memories. Photos usually get damaged through the times. The pictures may get blurred, the color fades and the picture might acquire marks and scratches. Thank the technology of today. People can now save and restore their old photos with the help of Photoshop.

Here are some steps to follow in restoring old pictures using the Photoshop.

1. The person may use the Elements in Photoshop, which are Dust and Scratch Filter to remove the marks, scratches an blots in the photo. The Dust and Scratches Filter is located on the Menu Bar and click on the Filter Tab. A drop down will list elements and then he can choose the Noise tab and select on the Dust and Scratches.

2. After clicking on the Dust and Scratches menu, a window will pop up with two control sliders. The first slider is for the Radius and the other one is for the Threshold. There will also be another window if the preview box will be checked. These are the main options that will be used in treating the picture.

3. Adjusting the Radius slider may remove the scratches. However, there is a tendency that overdoing it may make the edges blurred too. If that happens, the option is to adjust the Threshold slider and this will allow the details to go back and make the picture clearer with the scratches disappearing. The person should be careful not to set them too far or it will only create blotches on the picture.

4. In removing the marks, selecting the whole photo will not diffuse these marks. The option is to select only the part where the scratches are located. He may use the Lasso to do this.

5. He can then feather the edges of the selected area so that the selected area will not be obvious on the picture. He can do this by clicking the Feather option and click the Scratch and Dust Filter again. He can do the process again of adjusting the Radius and Threshold sliders to get the texture needed and remove the scratches.

6. It there are still visible marks on the other parts of the picture, he can do the technique again by selecting the areas he would like to adjust. To finish the process and make the picture presentable, he can crop the image enough to remove the cracks and torn edges of the picture. The canvas may be use to equally crop the image.

7. A person may add drama on the picture by adding a drop shadow on it. This will make the picture appear as if it has been lifted off the page. The color may also be removed using the controls Shift+Ctrl+U. He can then add color by putting a little amount of Sepia. He can do this with the Hue or Saturation tab. The contrast may be adjusted using the Levels option.

This is one easy way on how to remove the blotches and marks on an old picture. This is also a good way to make the picture look new but still appear classical. It will be a pleasant and easy way to display pictures kept on old albums and cabinets for a long time.

Senin, 08 Desember 2008

What is Virtualization?

by: Matt Peterson

There is a lot of buzz going around about Virtualization. What is Virtualization, and what benefits does it provide? In this article we will take a look at the technology to see how it can provide a great deal of flexibility and cost effectiveness for IT professionals and software developers.

Virtualization technology allows multiple virtual machines to run on a single host computer. These virtual machines can run different operating systems, such as Windows, Linux and UNIX. Each virtual machine has its own set of virtual hardware resources (e.g., CPU, RAM, Hard Drive, etc) allowing the operating system to run as if it were installed on a physical machine.

The benefits of Virtualization technology are far reaching. Many organizations have moved to the virtual machine solution to consolidate multiple servers, running side by side on a single physical machine. Server consolidation allows IT professionals to fully utilize server resources, while isolating virtual machines and allowing them to run different operating systems and applications. Software developers utilize virtual machine technology to quickly test applications on different operating systems, without the hassle of setting up multiple physical machines for testing or taking the risk of causing problems by testing in a production environment.

You can run Virtualization software on pretty much any platform. Once the software is installed it is simple to create virtual machine instances. Virtual machines are just a set of files located on the host machine. You configure your virtual machine settings on the host computer, install the operating system and you are ready to go. It is a very common practice to use a master image of a virtual machine. This master image can be a fully configured machine, with the operating system and all required applications installed. You can then rapidly deploy virtual machines by copying the master image to multiple Virtualization hosts to provide zero downtime and 100% server availability.

There are a number of Virtualization products available. VMWare, which is probably the most popular, recently announced that it will be releasing a free version of its GSX Server product. This will allow any organization to host virtual machines on either Windows or Linux hosts. Other Virtualization products include Microsoft’s Virtual Server and SWsoft’s Virtuozzo, just to name a few.

Rid Your Computer Of Spyware

by: Sandra Stammberger

Everyone seems to be asking these days: why is my computer so slow? Well, the answer to that question is usually that it’s loaded with programs called spyware and adware. Spyware and adware are programs installed, usually without your permission, on your computer so companies can show their advertisements, log what sites you visit so they know what products you’re interested in and record keystrokes on your computer so they know what you’re talking about. Below are 3 easy steps to take to start protecting and eliminating your spyware and adware problem on your home computer.

First, stop using Internet Explorer! I know you may be shocked, but Microsoft’s internet browser has more holes in it than Swiss cheese! The best alternative is Mozilla’s Firefox, available for free download at Mozilla.org. After installing the browser, it will automatically transfer your bookmarks/favorites and settings over to Firefox. Also, please make sure Firefox is your default browser. Using Firefox will reduce the amount of spyware and adware on your computer by 75%.

Secondly, download these two free programs: Spybot (safer-networking.org/en/index.html) and Ad-Aware (lavasoftusa.com/software/adaware/). These two free programs will search throughout your computer, find the spyware and adware and allow you to quarantine and delete it. To be completely safe, be sure to run and update both of these programs twice a week. This will get rid of all spyware and adware currently on your computer and bring your protection level up to 95%.

Finally, be sure to use a firewall. A firewall is just what it sounds like, a “wall” between your internet connection and your computer. If you have a high speed broadband connection, a firewall is a must. Most Windows XP systems have a built in firewall that you can simply enable (check Microsoft’s help files if you don’t know how) but if you’re looking for more protection but don’t want to pay, simply download Zone Alarm’s free firewall at tinyurl.com/7cn6a. Zone alarm’s firewall may take awhile to configure, but it is worth it in the long run. With a properly configured firewall, your protection level is now at 100%.

Good luck and be safe!

Virtual vs. Dedicated vs. CoLo: Which Web Hosting Do I Need?

by: John Hasson

You know you need a web host, but you don’t know where to start. So you do a web search to research potential solutions and get a bit overwhelmed with all the jargon: UNIX, dedicated servers, POP3, CoLo... the list goes on.

Step back a bit. You don’t need to learn everything about web sites to choose a host. You do however need to know what a web host is, and the basic types of web hosting. This knowledge will lead you to know what type of hosting you need, and ultimately you can make a sound decision.

To begin, let’s define the term. Web hosting is a service that hosts web pages on servers that can be accessed through the Internet. There are three primary categories of web hosting providers that cater to the requirements of site owners; these include virtual web hosting, dedicated web hosting, and co-located hosting. There are various sources online that offer detailed information and reviews on these services, but there are several details you should pay most attention to. The points to consider before selecting a web hosting provider include the number of clients they service, years in business, customer service reputation, hardware specifications, and backup routines. With that out of the way, let’s jump in and explore the basic types of web hosting.

Dedicated hosting

A dedicated web server is basically like the name sounds: it’s dedicated to your site only. Typically it is leased to a site owner. The hosting company is responsible for the maintenance, backing up, security, and power management. The site owner manages the software-related issues.

Dedicated hosting is useful for websites that need extra bandwidth and system resources because of the use of technologies such as e-commerce software, customized server applications, and heavy traffic. Such websites are often better served by a dedicated hosting provider rather than developing and running an in-house solution. Dedicated hosting is possible with Windows, Mac, and Linux servers. A dedicated server can cost upward of $100 / month.

Pros and cons: 24/7 tech support is available. Speed, dependability, and customizability of website are often enhanced. The response time of dedicated servers is fast as compared to shared servers where the activity of other sites affects server speeds. Reliability and customizability of websites are improved as dedicated hosting offers greater storage capacity and greater freedom in terms of hardware configurations and software installations; hard drives can be upgraded and bandwidths increased with growth.

Shared servers and CoLo hosting are cheaper alternatives to dedicated hosting. Moreover, as the server is not owned by the site owner, security of sensitive data can be an issue.

Virtual hosting

Virtual hosting, also called shared hosting, is a popular and cost-effective web hosting solution. The hosting provider leases the website hosting server, services, and bandwidth to more than one website. Small and medium-sized websites, which do not have high traffic and have limited bandwidth requirements, benefit from virtual hosting. A virtual hosting offer by a service provider usually includes features such as Internet connection, domain name registration, file storage, email account, and may also include website design assistance. The cost of virtual hosting is in the range of $5-40 per month. It can be more or less depending upon the package selected.

Pros and cons: Virtual hosting enables the establishment of an online presence with no expensive equipment purchases required on part of the site owners and therefore is the perfect solution for SMBs.

One of the limitations of virtual hosting is that sites compete for the provider’s service; this may result in slow server response times in periods of heavy traffic and make browsing inconvenient. Since websites hosted on a server may be grouped under a single IP address, there is a chance that a site owner may have to share an IP address with adult or scam sites. This can lead to debarring from search engine placements which will have an adverse effect on the traffic. As the software components are shared between websites, a site owner may not be able to personalize the website as per his business objectives and target audience.

While purchasing virtual hosting services, it is useful to have an idea of the total anticipated traffic during the day as well as the visits during the peak period. This helps in obtaining a package with sufficient bandwidth for immediate and near term needs. Also, the cost of an upgrade and changes to the package should be understood.

Co-location (Co-lo) hosting

In Co-location hosting, the server is owned by the site owner and it is leased at the co-lo facility, where it is installed along with other servers in the facility. A co-lo service enables site owners to make maximum use of network access points and the freedom to choose between telecom lines provided by the hosting company and other telecom lines. Co-location hosting enables site owners to utilize high bandwidth at a cost that is not significantly higher than that of a normal web hosting package. The site owner maintains the server while the hosting provider ensures smooth running by providing regular power supply and IT support.

Co-location hosting services can be standalone data centers or companies that operate by leasing server space from a co-location web hosting reseller. The cost of the server and the volume of rack space required by the servers of a site owner influence the cost of co-lo hosting. Servers that fit in with the dimensions of the racks can help to save costs; co-locating tower servers usually cost more. Additional services provided by the hosting provider and insurance are other factors that affect cost. The monthly cost of a co-lo service for a half-rack of server space can be up to $1000.

Pros and cons: The benefits of co-location hosting include temperature and humidity controlled environment for the servers; security from hacking, fire, and theft; provision of redundancy and backup. It enables the site owner to control the critical features of web hosting such as bandwidth allocation, routers, VPN, server space, and VLAN.

Site owners may not find it easy to locate a co-lo service that is situated close enough to facilitate easy and safe transfer of servers and at the same time provide the best connection speeds. Co-lo hosting is of greater advantage to those who have hosting experience and consequently are better placed to recover the costs involved.

Ultimately, it is the requirements of the site that dictate the choice of web hosting solution. Online stores and sites with heavy traffic are better off with dedicated hosting, personal blogs and small sites without ecommerce activity that do not have high bandwidth consumption can function with virtual hosting, and websites that require a high degree of customization and deal with sensitive data benefit from a co-lo hosting arrangement.

To determine what type of host you need, ask yourself what type of site you have, and it should all flow naturally from there.

Projector Buying Tips: The Best Projector Shopping Guide

by: Robert Thatcher

Technology has always been known to make people’s lives better. In fact, some surveys said that 8 out of 10 people who were interviewed showed significant representation of people who were relieved to have the best technology in their lives.

One of the primary reasons why technology is deemed as life’s enhancers is because it can unleash the limits set upon the rigidity of previous inventions.

This goes to show that with the new trend of technology, people can expect a better life because it provides a hundred and one ways of making the impossible doable.

Take for example the case of projectors. Before, projectors are known to be used in movie theaters and during business presentations or seminars.

But with the continuous technological advancement and development, projectors are now known to be used even at home. This is especially true to those who want to create a home-based theater of their own.

Technically speaking, projectors work in a way that the visual aspects that are limited on the tube of a television are directly converted into a bigger screen. This is where the graphics and images are unleashed on a bigger view and where space is no longer constrained in a tube.

However, not all projectors are created equal. Therefore, projectors may vary from one model to another. So the only way to get the best item is to know how to effectively buy a good one.

Here is a list of some tips that consumers may use when buying projectors.

1. Know the available type

Basically, there are only tow types of video projectors: the LCP, or the liquid crystal projection, and the tubed. Both of them can function well as far as projection is concerned.

Also, these two kinds of projectors are unique on each sense of functionality that may influence the presentation and setting up of the item.

Each has its own advantages and disadvantages as well. So it is best to do some research regarding this matter so you would only get the best kind of projector.

2. Decide on the magnitude and weight of the projector

There are three available categories of projectors. These are the conference room projectors, ultralights, and the fixed installation projectors.

Each category has its own purpose. So it is better to know the main purpose of using the projector so that you will be able to decide on what weight and size should be bought.

3. The price

As mentioned, not all projectors are created equal, that is why, they may be priced according to the level of their functionality and the way they were manufactured.

Generally, projectors re priced between $1,300 and $9,000. Though, 75% of the available projectors in the market today greatly fall under the $3,500 to $20,000 price range.

The main factors that influence the way projectors are priced are brightness and resolution. Hence, the higher the resolution and the brighter the projector can display images, the higher the price.

4. Consider your needs

When buying projectors, it really pays when the buyer knows what he needs before going to the store. This will make the buying process a lot easier and faster, avoiding the perils of motivations made by persistent salespeople.

The bottom line is that the quality of images that people should expect is reflected upon how they buy items like this. Hence, it is important to always have the initiative to research on the things that bring about the main concept of projectors.

Sabtu, 06 Desember 2008

Flash USB Drives: Backup Easily, Conveniently And Securely

by: Yuri Filimonov

Tired of switching CD/DVD discs while backing up? Flash USB drives to the rescue!

If you already backup often, you are doing the most you can to secure your files against accidental file deletion and recovery, file damage and what not. Also, you may be considering making your backups as easy and painless as possible. So what may be a remedy to this issue?

Naturally, you need to consider several backup media and select the one suitting your needs and requirements. Among all, CD, DVD and flash USB drives are considered.

You may as well use CD to backup, but you will either need to dump CD-R discs often, or insert a CD-/+RW discs often to make another backup. Someone else can also misplace your backup CD disc or overwrite your backup data with other information. Moreover, a CD only admits about 700Mb of data, which may not be convenient. Nor is storing multiple CDs of your backup copy.

The same can be said about backing up to DVD. Of course, a DVD admits from 4.7Gb to about 18.6Gb of data, but is it really convenient backing up to DVD? An external hard disk drive or a flash USB drive will be speedier, more reliable and easier overall.

Here is when a flash USB drive comes handy. It not only allows faster data copying than CD or DVD, but can also admit from 256Mb to 4Gb of data (or maybe more). Moreover, you can take the USB drive with you anywhere you go and transfer the data between distant computers without resolving to FTP backup. Of course, one of the drawbacks of a flash USB backup is that the drive is only limited to about 100 000 writings, while another slight disadvantage (or an advantage, if you put it nicely) is that the device is so small you can easily misplace it.

How to Get a Good Deal on a Hard Drive

by: Mac McClellan

Computer equipment is one of the hardest things to buy if you are not at least somewhat competent in the market. Many people are willing to take advantage of someone who doesn’t have a clue what he or she need. Take the MarketPro Shows for example. Many different vendors frequent the shows in order to sell their wares, and on one occasion, this writer thought the Motherboard had gone on my computer, but I was also interested in upgrading my hard drive as well. One vendor quoted a price of approximately $350 to replace the Mother Board and include a hard drive of 2 Gb It seemed like a good deal at the time until shopping in various computer stores showed that a whole system with an 80 Gb hard drive could be purchased for not much more than that. Interesting thought, isn’t it? Why is a person going to pay $350 to get 2 Gb of hard drive memory when for approximately $599, one can get a tower with an 80 Gb hard drive, 512K of RAM, a keyboard, and sometimes even a printer depending on the sale that is being offered at the time.

How do you know where you’re getting a good deal on a hard drive? One of the things that you don’t want to do is take the first deal that interests you because you think it sounds “good.” Unless you are a computer whiz who knows the prices and specifications of every product in the local area, you need to check around. Find out exactly what it is that you want and get some prices. While you are doing this, do not let anyone think that you are interested in buying at that time because they will attempt to convince you that if you don’t buy your hard drive that day, you will pay much more money for it and not get the same quality. You want to do all of your research before you make your final decision and know that in the end you have made the most informed decision of all.

When it is suggested that you check around, that doesn’t mean just the stores in your area because often times, an Internet search will yield you a much better price, but this means you will have to know exactly what it is that you want right down to the size of the hard drive and speed of the processor. Even EBay is a good source of value-priced hard drives, but you must be able to read into the seller’s profile, meaning that you do not attempt to place a bid if the seller has a private profile. Again, you must read the description in detail because if you are looking for a new hard drive, you must look at the complete description. Even if your hard drive has taken a nosedive, give yourself an opportunity to look for a good deal instead of simply taking the first one that sounds like a good deal because you’re desperate. This has not yet been mentioned, but one of the most important things about a hard drive is know the potential that it can crash and being sure to have all of your important information backed up so that it’s just a matter of reloading it when you replace the hard drive. Lastly, be sure to keep your virus protection up to date because one of the biggest causes of hard drive crashes is a virus.

Of course most of the work has already been done for you at http://harddriveusa.com. At Hard Drive USA you can find great resources on hard drives and the best deals on hard drives.