Computer software

Sunday, November 28, 2010

Computer software

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"Software" redirects here. For other uses, see Software (disambiguation). Computer software, or just software, is the collection of computer programs and related data that provide the instructions telling a computer what to do. We can also say software refers to one or more computer programs and data held in the storage of the computer for some purposes. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software is intangible, meaning it "cannot be touched".[1] Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes, and records.[2]
Examples of computer software include:

The Benefits of the Proxy Web Server

Understanding why proxy web servers are so popular involves understanding not only what they are, but also expanding that knowledge to get why they are so beneficial. A web proxy server is a server that you can use to take the place of another server and act as that server in every way. While the proxy server will still be getting everything it needs from the normal server, you will not interact with the normal server in any way and in fact this means that the proxy web server will act as a middle man of sorts between you and the server that you wish to interact with.
Now, while this is not a new concept by any stretch of the imagination, at the same time it does take a little bit of critical thinking to completely understand why web proxy services are so beneficial. The best way to do this would be to look at it from the point of view of someone at work that has had all of their websites blocked off (this could also apply to a student at school). This means that the person is not able to access their e-mail, their chat, their online recreation or their social networking websites such as MySpace, Bebo, Facebook and others.
While this might seem like a desperate situation to some, to people that know about web proxy services it is a situation that is easily remedied. Instead of trying to access the server directly for a website like Facebook or Bebo, the user could access the server through a web proxy service. This would allow them to bypass the security protocols blocking the Facebook servers from entering their computer at work and ultimately it would allow them to use the service even if it was blocked at work. All of the unblock websites use proxy servers in this way and that is why they are so effective.

Friday, November 12, 2010

The Beauty of Multiple Domain Hosting

If you currently run a website, chances are you have considered shared hosting. This is the most common and affordable way to establish a web presence due to the mere structure of the arrangement. With shared hosting, web hosting firms can provide a much cheaper service because storage capacity, bandwidth and other resources are shared amongst numerous customers, thus lowering their overhead expense.

While this is an ideal arrangement for most, there are some drawbacks. Many providers will only allow you to host a single domain or website on a single account. This is not a problem if you only intend to create a single website. However, it becomes a different story later down the road when your expanding web presence calls for you to set up more websites. In order to accomplish this, you would normally have to purchase a separate account for each new domain for which you wish to create a website. Therefore, if you have a need for five different websites, just image how much you would be paying every month on hosting services.

Maintaining a multitude of sites can be an expensive venture, but multiple domain hosting is an arrangement that offers a viable and cost effective solution.

What is Multiple Domain Hosting?

In general, multiple domain hosting refers to a web hosting arrangement in which the provider permits you to run all of your domains on a single account. This gives you the opportunity to save a lot of money because instead of purchasing service from multiple hosts, you simply sign up with one company and manage your websites from a centralized area.

In terms of convenience, you can log into your account and administer the features and services for each individual domain via the same control panel. Multiple domain hosting not only provides you with an affordable solution, but one that offers the ultimate in convenience.

The Benefits of Multiple Domain Hosting

There are numerous benefits of multiple domain hosting. Perhaps the most significant advantage of all is that it provides you with the ability to increase visibility and expand your web presence in various ways. Depending on the number of domains you are permitted to host, you can set up web environments, such as a content rich news site, an online magazine, directory, e-commerce store, or one dedicated to promoting your PPC (Pay Per Click) campaign.

With popular and easy to use application installers such as Fantastico, which have become common in today’s web hosting plans, you can really make the most of multiple domain hosting with programs that allow you to incorporate blogs, community forums, photo galleries, support centers and robust content management systems. This type of hosting is one that allows you to let your creativity run wild and conquer the web from various angles.

Extensive Domain Management Options

Another perk of multiple domain hosting is that the actual domain names themselves are generally affordable and easy to acquire. For example, a company that offers this type of hosting usually allows you to purchase a domain name from an inexpensive registrar, such as GoDaddy or Yahoo, and then point them to their name servers. This is any easy process that can be done with the aid of your hosting company and the control panel interface provided by the domain name registrar.

Once the changes have been made and your domains become active, you can then log into your hosting account and manage them in accordance to your preference. Most web hosts also provide you with the features needed to set up email accounts, FTP accounts, databases and subdirectories for each individual domain.

The Cost for Multiple Domain Hosting

Multiple domain hosting has become quite common on the market – which means you should have no trouble finding yourself an affordable package. In fact, the price for this type of arrangement is generally in the same ballpark of traditional shared hosting plans.

With the luxury to run multiple websites, your potential for online success is uncapped. What you need to do is find yourself a reliable service provider that can assure your sites will continue to run with the utmost efficiency. With the right company behind you, investing in a multiple domain hosting solution could turn out to be one of the best decisions you make in regards to your web presence.

How to create a template

You can actually get some help in template creation from Word's online Help if you look under “templates, creating.” (In Word 2007, look at the “How to create a template” portion of the Help topic “Creating Microsoft Office Word 2007 templates.”) But first you need to understand what a template is, what it is not, and when you need to create one. Then we’ll look at the basics of how to create a template.

What is a template?

In the most general sense, a template is a pattern or model on which something else is based. It might be a shape that you trace around or an outline of suggested content. In Word, however, the word template has a specific technical sense; it is a particular kind of file, with a different file extension from a document (.dot, .dotx, or .dotm instead of .doc or .docx).
Templates in Word are generally stored in a different location from documents, and you will rarely open one directly after creating it. Instead, you will use it as the basis for creating new documents.
Word comes with a number of built-in templates, but you may be unaware of them if you have never visited the dialog where they live. What you get when you press Ctrl+N to create a new document in any version is a Blank Document based on the default template, which is called Normal (Normal.dotm in Word 2007, Normal.dot in previous versions), but Word also offers templates expressly designed for specific types of documents: letters, reports, fax cover sheets, and the like. These are accessed as follows:
  • Word 2000 and earlier: Select New… on the File menu. This opens the New dialog (see figure below).
  • Word 2002 and 2003: Select New… on the File menu. This opens the New Document task pane, where you can either select a recently used template or click on “General Templates” (Word 2002) or “On my computer…” (Word 2003) to open the Templates dialog (which is just the New dialog with a different name).
  • Word 2007: Click the Office Button and select New. This opens the New Document dialog, which initially displays “Blank and recent” templates—that is, the Blank Document and any other templates you have used recently. The Recently Used Templates pane will be empty until you have used other templates, which you can find under Installed Templates (the ones that ship with Word) or My templates… (the ones you have created).
Many, many more templates are available for download from the Office Template Gallery, which can be accessed directly from Word 2002 and above:
  • Word 2002: In the New Document task pane, click  “Templates on Microsoft.com.”
  • Word 2003: In the New Document task pane, click on “Templates on Office Online.”
  • Word 2007: In the New Document dialog, click on Microsoft Office Online.

What a template is not

Although many of the templates you can download from Microsoft Office Online contain sample content, a template is not really about content but about structure and layout. A template is designed to provide specific page layout (page size and orientation, margins, number of columns, and so on), and styles for the types of paragraphs most likely to be used in the given type of documentIt may also contain tools to facilitate using the included styles and other features
In Word 2007 and 2010, these tools may include Building Blocks and a customized Quick Access Toolbar and/or Ribbon. In Word 2003 and earlier, they may also include custom menus and toolbars. In all versions, they may include macros, keyboard shortcuts, and AutoText entries.
Some templates do contain boilerplate content: a template for a letter, for example, will perhaps have a letterhead on the first page, page numbering, and perhaps an automatic date field. In addition to custom styles for the parts of a letter (Inside Address, Reference Line, Salutation, Body Text, Complimentary Close, Signature, Copy List, and so on), it may have dummy paragraphs or text entry fields indicating where these parts go.
In general, however, the content of a document is up to the writer. Users often ask for “templates” for very specific content, such as a letter protesting an unfair dismissal or a letter to customers of a business thanking them for their patronage. You may actually find such samples among those available in the Template Gallery at Microsoft Office Online. Viewed from a layout perspective, however, such letters are just letters. They can be created using a generic letter template or from scratch, assuming the writer knows how to write a letter. What the user is really looking for is a model or sample document that would provide suggested wording for such a letter. That is not what a “template” is in Word.
On the other hand, users’ needs are sometimes are more related to layout: “a Request for Proposal template to hire a building designer for a residence” or “a restaurant evaluation sheet template” or “a flyer template for an AA – Al-Anon Event.” In such cases, finding a readymade template is unlikely, though it may be possible to find a generic template that can be adapted. In the last analysis, however, the user is still looking for a model or sample rather than a template—just something to copy or build on; even a sample document would suffice.

When to create a template

There are several ways to create a new document in Word:
  •  Click New on the Standard toolbar (Word 2003 and earlier) or select Blank Document in the New Document dialog in Word 2007. Alternatively, press Ctrl+N. This will create a new Blank Document based on the Normal template, which contains all the styles available in Word. You can modify these styles as desired, and you can change the layout of the document in any way you wish.
Note: By default the Quick Access Toolbar (QAT) in Word 2007 does not have a New button that automatically creates a new document based on the Normal template. To add the New button, click the arrow (More button) at the end of the QAT and then click New.
  • Open an existing document as the basis for a new one. The natural tendency of most users of word processing applications is to create a document and use it as a model for future documents. That is, you format a letter the way you want all (or most) of your letters to look, save it, and then, when you want to write a letter, open this document and save it under another name as the starting point for your letter. While this technique is a practical approach in some instances, there is always a risk that you will forget to use Save As and will instead overwrite your original document.
  • Create a new document using an existing document as a quasi-template. This is a way to reuse a document without risk because a document created this way is unnamed; the first time you click the Save button or press Ctrl+S, you will get the Save As dialog, which requires you to name the document and choose a place to save it.
  • Word 2002 and 2003: In the New Document task pane, choose New | From existing document… Browse for the document in the New from Existing Document dialog and click on Create New.
  • Word 2007: New from existing… is one of the options in the New Document dialog. Browse for the document in the New from Existing Document dialog and click on Create New.
  • You can actually accomplish the same thing in any version of Word by right-clicking on a document file in the Open dialog or Windows Explorer/My Computer and choosing New.
  • Create a new document based on a different template, either one of those that ship with Word (Installed Templates) or one you have created, by selecting it in the New, Templates, or New Document dialog.
The whole point of a Word template is to create a format that can be used over and over again. Accordingly, it is unnecessary and a waste of time to create a template for a single-use document. Creating a template for letters makes sense; creating a template for a letter protesting one’s unfair dismissal does not. A template for flyers for AA – Al-Anon events may make sense if the events are frequent and the flyers should be consistent in design; if the event is a one-off, a document will suffice.
So, before you set out to create a template, you should ask yourself whether it is something you would use repeatedly. Often this realization comes after you’ve recreated the same document format numerous times, changing margins, modifying styles, changing fonts. It occurs to you that you could save time in the creation of such documents if you didn’t have to make all these changes. That’s when you need a template.
In addition, there are advantages to true templates that cannot be achieved with documents used as templates. Although it is now possible to save macros, a customized QAT (toolbars and  menus in earlier versions), and keyboard shortcuts in documents, Building Blocks (AutoText entries in earlier versions) must still be saved in templates. And the New/Templates/New Document dialog actually makes it easier to access templates than to search for documents.
If you create a specific kind of document (such as letters) almost exclusively, your first impulse may be to just make the necessary changes to the Normal template, so that you get a document formatted the way you want when you click the New button. This can be a solution up to a point, but please note the caveats expressed in “How to change the default settings for Word documents.” In particular, it is not a good idea to add a header or footer to the Normal template because this will affect the layout of labels.
For this reason it is usually a good idea to leave the Normal template alone (a lot of your settings, such as shortcut key assignments and—in previous versions—custom toolbars, will be stored there anyway, so that they are available to all templates) and make a custom template for each specific task you routinely do.

There are two basic ways to create a template:
  1. You can start from scratch, selecting New… from the File or Office Button menu and checking the radio button for Template instead of Document in the dialog box when you create a new file.
The above is the author’s personal New dialog, which includes many custom tabs and templates.
The Installed Templates have been copied to dedicated folders and then uninstalled

(so as to reduce the number of tabs they require).
  • You can base your template on any existing template, including the Normal template (represented in the New dialog by “Blank Document”). If you base a new template on Blank Document (which you will find in My templates… in Word 2007), it will not actually be based on the Normal template but rather on the default settings (that is, the out-of-the-box Normal template rather than the current version with any modifications you may have made).
  •  When you save the file, it will automatically be saved as a template, using the filename you assign. The default save location will be Word’s Templates folder (or a subfolder you choose). In Word 2003 or earlier, the file format will be .dot. In Word 2007, the default template format is .dotx, but you can also choose .dot (if you want the template to be usable in earlier versions) or .dotm (if it contains macros).
  1. You can create a template from a new or existing document. Whenever you have a document that has formatting you want to repeat in another document, you can Save As and under “Save as type” choose a template format.
  • In Word 2003 and earlier, the only choice is “Document Template (*.dot).” In Word 2007, you have a choice of .dot, .dotx, and .dotm, as described above.
  •  In Word 2003 and earlier, the save location will be automatic (as with Method 1). In Word 2007, however, the file location is not automatically selected for you. You can save the template anywhere, but if you want it to appear in the New Documents dialog, you must save it in the Templates folder (accessed via the Trusted Templates link in the Places Bar of the Save dialog)
When you use the first method and base your new template on an existing one (other than Normal), the new template will inherit all the macros, custom toolbars or menus, toolbar or menu customizations, shortcut key assignments, and AutoText entries or Building Blocks that are stored in that template. Since these customizations are not stored in documents based on the template, a template created using the second method will not include them. A template created by either method will, however, contain the styles and layout of the parent template (though you may choose to modify them).
Note: Unless you have explicitly saved macros, custom toolbars or menus, toolbar or menu customizations, shortcut key assignments, AutoText entries, or Building Blocks in a specific document template, they will be stored in the global template, Normal.dot or Normal.dotm. This means that they are available to all documents, regardless of what document template is attached, so they are not saved in a template based on the Normal template.
Another advantage to using the first method in Word 2007 (as noted above) is that Word defaults to the Templates folder when you save the template. If you use the second method, you must manually navigate to the Templates folder (or other save location).

When to create a template

There are several ways to create a new document in Word:
  •  Click New on the Standard toolbar (Word 2003 and earlier) or select Blank Document in the New Document dialog in Word 2007. Alternatively, press Ctrl+N. This will create a new Blank Document based on the Normal template, which contains all the styles available in Word. You can modify these styles as desired, and you can change the layout of the document in any way you wish.
Note: By default the Quick Access Toolbar (QAT) in Word 2007 does not have a New button that automatically creates a new document based on the Normal template. To add the New button, click the arrow (More button) at the end of the QAT and then click New.
  • Open an existing document as the basis for a new one. The natural tendency of most users of word processing applications is to create a document and use it as a model for future documents. That is, you format a letter the way you want all (or most) of your letters to look, save it, and then, when you want to write a letter, open this document and save it under another name as the starting point for your letter. While this technique is a practical approach in some instances, there is always a risk that you will forget to use Save As and will instead overwrite your original document.
  • Create a new document using an existing document as a quasi-template. This is a way to reuse a document without risk because a document created this way is unnamed; the first time you click the Save button or press Ctrl+S, you will get the Save As dialog, which requires you to name the document and choose a place to save it.
  • Word 2002 and 2003: In the New Document task pane, choose New | From existing document… Browse for the document in the New from Existing Document dialog and click on Create New.
  • Word 2007: New from existing… is one of the options in the New Document dialog. Browse for the document in the New from Existing Document dialog and click on Create New.
  • You can actually accomplish the same thing in any version of Word by right-clicking on a document file in the Open dialog or Windows Explorer/My Computer and choosing New.
  • Create a new document based on a different template, either one of those that ship with Word (Installed Templates) or one you have created, by selecting it in the New, Templates, or New Document dialog.
The whole point of a Word template is to create a format that can be used over and over again. Accordingly, it is unnecessary and a waste of time to create a template for a single-use document. Creating a template for letters makes sense; creating a template for a letter protesting one’s unfair dismissal does not. A template for flyers for AA – Al-Anon events may make sense if the events are frequent and the flyers should be consistent in design; if the event is a one-off, a document will suffice.
So, before you set out to create a template, you should ask yourself whether it is something you would use repeatedly. Often this realization comes after you’ve recreated the same document format numerous times, changing margins, modifying styles, changing fonts. It occurs to you that you could save time in the creation of such documents if you didn’t have to make all these changes. That’s when you need a template.
In addition, there are advantages to true templates that cannot be achieved with documents used as templates. Although it is now possible to save macros, a customized QAT (toolbars and  menus in earlier versions), and keyboard shortcuts in documents, Building Blocks (AutoText entries in earlier versions) must still be saved in templates. And the New/Templates/New Document dialog actually makes it easier to access templates than to search for documents.
If you create a specific kind of document (such as letters) almost exclusively, your first impulse may be to just make the necessary changes to the Normal template, so that you get a document formatted the way you want when you click the New button. This can be a solution up to a point, but please note the caveats expressed in “How to change the default settings for Word documents.” In particular, it is not a good idea to add a header or footer to the Normal template because this will affect the layout of labels.
For this reason it is usually a good idea to leave the Normal template alone (a lot of your settings, such as shortcut key assignments and—in previous versions—custom toolbars, will be stored there anyway, so that they are available to all templates) and make a custom template for each specific task you routinely do.

What is a template?

In the most general sense, a template is a pattern or model on which something else is based. It might be a shape that you trace around or an outline of suggested content. In Word, however, the word template has a specific technical sense; it is a particular kind of file, with a different file extension from a document (.dot, .dotx, or .dotm instead of .doc or .docx).
Templates in Word are generally stored in a different location from documents, and you will rarely open one directly after creating it. Instead, you will use it as the basis for creating new documents.
Word comes with a number of built-in templates, but you may be unaware of them if you have never visited the dialog where they live. What you get when you press Ctrl+N to create a new document in any version is a Blank Document based on the default template, which is called Normal (Normal.dotm in Word 2007, Normal.dot in previous versions), but Word also offers templates expressly designed for specific types of documents: letters, reports, fax cover sheets, and the like. These are accessed as follows:
  • Word 2000 and earlier: Select New… on the File menu. This opens the New dialog (see figure below).
  • Word 2002 and 2003: Select New… on the File menu. This opens the New Document task pane, where you can either select a recently used template or click on “General Templates” (Word 2002) or “On my computer…” (Word 2003) to open the Templates dialog (which is just the New dialog with a different name).
  • Word 2007: Click the Office Button and select New. This opens the New Document dialog, which initially displays “Blank and recent” templates—that is, the Blank Document and any other templates you have used recently. The Recently Used Templates pane will be empty until you have used other templates, which you can find under Installed Templates (the ones that ship with Word) or My templates… (the ones you have created).
Many, many more templates are available for download from the Office Template Gallery, which can be accessed directly from Word 2002 and above:
  • Word 2002: In the New Document task pane, click  “Templates on Microsoft.com.”
  • Word 2003: In the New Document task pane, click on “Templates on Office Online.”
  • Word 2007: In the New Document dialog, click on Microsoft Office Online.

What a template is not

Although many of the templates you can download from Microsoft Office Online contain sample content, a template is not really about content but about structure and layout. A template is designed to provide specific page layout (page size and orientation, margins, number of columns, and so on), and styles for the types of paragraphs most likely to be used in the given type of documentIt may also contain tools to facilitate using the included styles and other features
In Word 2007 and 2010, these tools may include Building Blocks and a customized Quick Access Toolbar and/or Ribbon. In Word 2003 and earlier, they may also include custom menus and toolbars. In all versions, they may include macros, keyboard shortcuts, and AutoText entries.
Some templates do contain boilerplate content: a template for a letter, for example, will perhaps have a letterhead on the first page, page numbering, and perhaps an automatic date field. In addition to custom styles for the parts of a letter (Inside Address, Reference Line, Salutation, Body Text, Complimentary Close, Signature, Copy List, and so on), it may have dummy paragraphs or text entry fields indicating where these parts go.
In general, however, the content of a document is up to the writer. Users often ask for “templates” for very specific content, such as a letter protesting an unfair dismissal or a letter to customers of a business thanking them for their patronage. You may actually find such samples among those available in the Template Gallery at Microsoft Office Online. Viewed from a layout perspective, however, such letters are just letters. They can be created using a generic letter template or from scratch, assuming the writer knows how to write a letter. What the user is really looking for is a model or sample document that would provide suggested wording for such a letter. That is not what a “template” is in Word.
On the other hand, users’ needs are sometimes are more related to layout: “a Request for Proposal template to hire a building designer for a residence” or “a restaurant evaluation sheet template” or “a flyer template for an AA – Al-Anon Event.” In such cases, finding a readymade template is unlikely, though it may be possible to find a generic template that can be adapted. In the last analysis, however, the user is still looking for a model or sample rather than a template—just something to copy or build on; even a sample document would suffice.

Wednesday, November 10, 2010

Web Hosting

The first step to building a website is finding somewhere to host it. A web host is where the files composing your webpage reside, allowing users on the Internet to retrieve them 24 hours a day. Without a web host, the only way for people to see your website is for you to send them the files individually. Think of a web host as a home for your website. Read more to learn more about web hosts.

Function
When crafting a website on your computer using a page designer such as PageMill, iWeb or FrontPage, the files you create initially only exist on your computer. In order to make them "live" and accessible to web surfers, you must upload (publish) them to a server. It is possible to allow users to access files when they are saved on your computer, but in order to do this, your computer would have to remain connected to the Internet at all times. Web hosts are dedicated servers that are always available to users on the Internet.
Types
There are two main types of web hosting solutions: shared and dedicated. Every server has its own IP address--you can think of an IP address as a computer's phone number or postal code. Shared hosting solutions contain several different websites on the same physical server. These websites will all have the same IP address. The websites are then separated into folders, or subdomains. The main advantage of a shared host is its considerably lower cost. The disadvantages are that you must share disk space and bandwidth other websites (meaning your site may be slower and more restricted in size). Also, you are somewhat liable for the activities of the other websites on your server. For example, if someone is running an unscrupulous website and the government orders the server to be shut down, your site will also be affected.

Dedicated servers are much more expensive but allow more freedom. Dedicated servers are faster and are more accommodating to sites that require more disk space. Also, you are given more liberty in regards to software that can be installed on the software, as the effect on other websites do not to be taken into consideration.
Considerations
Web hosts only provide you with a physical home for your webpage. In order to access your page, web users will have to type in the specific IP and subdirectory of your webpage. These can be hard to remember, as IP addresses consist solely of numbers. If you want users to access your website by typing in an easy to remember address such as YourWebsite.com, you'll need to buy a domain name. Though many web hosts also provide domain name services, you do not have to purchase your domain from your web host. The domain name you purchase merely points to the physical location of your website, working like a shortcut on your desktop or a speed dial on your phone.
Size
The two main factors affecting pricing are disk space and bandwidth. Disk space refers to how large your website is, in terms of bytes. Most basic websites require less than a gigabyte of space, but a site with a large amount of multimedia requires more space.

Bandwidth refers to the amount of traffic your site gets. The more simultaneous requests a server gets for web site retrievals, the slower the site runs. As such, web hosts encourage webmasters to decrease their bandwidth by hosting smaller sites. In order to compensate for the increased traffic--thus strain on the server--of more popular websites, web hosts keep track of the bandwidth used by your site and charge accordingly. If you exceed your bandwidth limit, the web host will disable your site, so make sure you purchase enough bandwidth to cover your needs.
Warning
Since you will be entrusting a web hosting company with all of your business information (including sales, financial information and other personal information), make sure that you choose a reputable and secure company. If the server is hacked, your name, address, social security number, credit card number and any other information you provided can be stolen. You will also want to ensure that you keep a backup of your website on your local hard drive in case the server crashes.

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