Monthly Archives: January 2013

01.28.13
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99.99% uptime- Is it realistic


Some web host offer 99.99% uptime. Is it realistic to get 99.99% uptime?

Probably this is not possible.

If we look at these percentages and convert them into the amount of time your site is going to be down we get some very telling information.

99% – 5256 Min/Yr or 87.6 Hours/Yr – 438 Min/Month or 7.3 Hours/Month

99.5% – 2628 Min/Yr or 43.8 Hours/Yr – 219 Min/Month or 3.65 Hours/Month

99.9% – 525.6 Min/Yr or 8.76 Hours/Yr – 43.8 Min/Month or .73 Hours/Month

99.95% – 262.8 Min/Yr or 4.38 Hours/Yr – 21.9 Min/Month or .365 Hours/Month

99.99% – 52.56 Min/Yr or .876 Hours/Yr – 4.38 Min/Month or .073 Hours/Month

99% uptime sounds like a lot but with 99.95% and 99.99% you would have little or no downtime.

99.5% uptime is sufficent.

It is impossible to get 99.9% uptime.

The ultimate goal is to find a web host that has an uptime guarantee and maintains that level of service. you do need the peace of mind of having your website up and running.

01.28.13
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While JavaScript code is ultimately event driven


While JavaScript code is ultimately event driven, and intimately tied to its HTML environment, Java applets are much more independent. An applet may respond to a mouse click within its active area, but it won’t be listening for the sound of a Submit button being pressed.
An applet is a little application that lives in its own world, for the most part. JavaScript code is more like a Dynamically Loaded Library which is activated in response to something.
01.28.13
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JavaScript takes a very relaxed attitude towards variables and functions


JavaScript takes a very relaxed attitude towards variables and functions. Variables are typeless, and the distinction between functions, objects, and arrays is blurry at best. By contrast, Java is an extremely strict language.
All Java variables have an explicit data type. Types may only be converted to one another under very well defined conditions, and only by using explicit type conversion functions. Java also enforces static name binding, instead of JavaScript’s dynamic binding. It is impossible to reference an undefined function.
01.28.13
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Java is actually a very small language when compared with


Java is actually a very small language when compared with other object-oriented programming languages such as C++. Nevertheless, it has a large number of capabilities.
The extensive set of built-in functions and objects known as the Java class hierarchy, for example, implements an extremely rich and powerful set of tools for image manipulation and network access, among other things.
01.28.13
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Host your website locally


Is it better to host your website with someone locally even if they are a bit higher priced? What are the advantages and disadvantages of doing this?

Internationally, it’s not essential that a UK website is hosted in the UK, or a US one in the states, and so forth.

If you’re talking counties and the like, then no, I can’t see any reason to choose one over the other (beside price and features)

I see no advantages at all, especially if a host offers a toll free phone. I see no use in the vicinity to your host’s office, quality of their service is something that could be more valuable.

The quality of the hosting company – that is the main thing not location.

Choosing between a local and non-local host I would consider the following points:
1. Servers location.
2. Office location.
3. Seo apsects

I have a UK based domain and using the USA-based host cpwebhosting.net and never feel sorry for it.

I have read search engines do use a server’s location to filter their results, depending on the location of the search. So ‘UK’ sites in Google, for example, may be affected by sites actually hosted in the UK.

01.28.13
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Java variables must be explicitly declared


Java variables must be explicitly declared with a particular data type. Java is very similar to the C and C++ programming languages in terms of the types it supports.
Java, however, rigidly specifies the size and representation of its various types so that there can be no confusion. If you have ever tried to port a C program from a DOS or Windows environment with 16-bit integers to a UNIX or Windows-NT environment with 32-bit integers, you know from firsthand experience how frustrating such low-level problems can be.
01.28.13
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There are several differences between the object models of Java and JavaScript


There are several differences between the object models of Java and JavaScript, as well as their terminologies.Java refers to its objects as classes, unlike JavaScript.
Java object members are referred to as instance variables, rather than properties. Instances and methods have the same meaning in both languages.
01.28.13
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Java has no independent functions, only methods


Java has no independent functions, only methods. These differences arise from the fact that Java is both explicitly typed and strongly typed. In Java every piece of data must have a type. Every structured data type, such as String, is a class, while the data itself is an instance of that class.
This concept of strong typing pervades all of Java, and is even reflected in the differences in terminology with JavaScript.
01.28.13
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JavaScript can be used to create several useful visual effects


JavaScript can be used to create several useful visual effects, including alternating color schemes, fades, scrolling marquees, and dynamic graphics.
Unlike effects created using other tools, JavaScript effects load quickly as part of your document, and can start even before a page is completely loaded.
01.28.13
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You’ve often seen http: or ftp: at the beginning of a URL


You’ve often seen http: or ftp: at the beginning of a URL. This is the protocol: it tells the browser which protocol handler to use to retrieve the object referred to after the colon. The javascript: protocol is really no different; it simply instructs the browser to let JavaScript retrieve the object.
But rather than initiate communication with another server, the JavaScript handler returns the value of the variable or function cited after the colon. The value returned should be HTML or some other MIME type the browser knows how to display.