Friday, April 6, 2007

The 10 Most Misunderstood Terms In IT

Here are the ten terms that we believe are currently the "most misunderstood" by those who work in information technology. The list is arranged in alphabetical order. We also list a number of terms suggested by our readers that don't quite make the "top 10."
We also list a second list of 10 most misunderstood terms, based on an informal survey of our fellow editors here at Whatis.com and TechTarget.

1) acronym
An acronym is not any abbreviation, just one that forms a "sayable" word. Apart from that confusion, acronyms and other abbreviations cause confusion any time a reader is likely not to know what the spelled-out version is. One Whatis reader said he was especially confused by "acronyms within acronyms" and cited the example of SAX (Simple API for XML).

2) ASPActive
Server Page or application service provider (ASP) - which is it? These are both frequently-used abbreviations in many development shops.


3) ATM
Automatic teller machine - or asynchronous transfer mode? IT people who work at banks sometimes use both kinds of ATM.

4) bandwidth
Does bandwidth mean "capacity or speed in general"? Or does it have a more technical meaning of how wide a broadcast band or other data channel is? Is it OK if it means both? (No one mentioned channel as confusing but it has at least six meanings.)

5) JavaScript
JavaScript is not the same as Java and some people tend to think it is.

6) kilobit
Is a kilobit 1,000 bits or 1,024 bits? Whatis.com says it's 1,000 bits but no one is very comfortable with their position. Since "kilo" has a power-of-ten origin, a standards group has invented a new prefix kibi to represent something that is a unit of (decimal) 1,024 or (binary) two to the 10th power.

7) NET
NET is Microsoft's term for using XML to define and share data across the Internet so that many application services can now be performed remotely. But the set of tools related to this idea keeps evolving and Microsoft somewhat understandably keeps redefining the details.

8) platform
Is a platform hardware (a particular processor and its instruction set) or software that will run on it (the operating system) - or is it both? Or is it just "whatever products are needed to run something on"? Although many readers understand the term in context (or may not care to make the distinction), this term represents many other such fuzzy terms that seem to come in handy for writers if not for readers.

9) server
Is a server a program - or a computer that is dedicated to a certain purpose? Often it means both at the same time, but sometimes it can be important to know, especially if you've just been asked to install it.

10) Windows
The term "Windows" all by itself is a frequent source of misunderstanding since different versions of Windows (95, 98, 2000, XP, etc.) offer different behaviors and problems.

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Tuesday, March 27, 2007

COMPUTER

A computer is a machine for manipulating data according to a list of instructions.
Computers take numerous physical forms. Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers. Today, computers can be made small enough to fit into a wrist watch and be powered from a watch battery. Society has come to recognize personal computers and their portable equivalent, the laptop computer, as icons of the information age; they are what most people think of as "a computer". However, the most common form of computer in use today is by far the embedded computer. Embedded computers are small, simple devices that are often used to control other devices—for example, they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras,and even children's toys.

A computer in a wristwatch.
The ability to store and execute programs makes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: Any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perform the same computational tasks as long as time and storage capacity are not considerations.

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Tuesday, March 13, 2007

The Future Of Bluetooth - What is the Future?

Because it meets the basic needs of connectivity in close range, Bluetooth has a very bright future ahead of it. Bluetooth is actually the result of initiatives from nine leading communications and computer industry giants, including 3-COM, Sony,Lucent, IBM, Nokia, Microsoft, etc. Since the forming of the original group, more than 1,800 manufacturers around the world have joined the initiative. According to reports, the Bluetooth technology is expected to be built into more than 100 million devices, with over 670 million enabled Bluetooth devices. Resulting from the amazing success of WAP (Wireless Application Protocol), the adoption of smart phones and hand held devices, Bluetooth can easily have an amazing impact on your day to day life. Bluetooth is one of the key technologies that can help to make the mobile information society happen, by blurring the possibilities between home, the office, and the outside world. The seamless integration and connectivity that Bluetooth promises will make it possible to explore a wide range of interactive and highly transparent personalized services which were actually quite difficult to dream of simply because of the complexity involved with making such devices communicate with each other. Many Bluetooth pilot products have already been rolled into the market and backed by big vendors, which is a healthy sign for the overall acceptance of the technology. The support for Bluetooth isn't limited to companies that develop only Bluetooth enabled products. The applications for Bluetooth can have great impacts on other industries as well. The adoption of Bluetooth technology is expected to spread throughout the industry of computers. Unlike infrared technology, Bluetooth is used by many different wireless devices. Bluetooth offers exceptional quality for short range wireless, even going through walls and obstructions. While infrared is the biggest competitor at this time, Bluetooth far surpasses it, proving to millions that it is the wireless communication technology of the present day and age. In the beginning, Bluetooth started with version 1.0, then gradually moved from there. The current version is 2.0+EDR, with another version currently in development. The technology behind the Bluetooth specification always getting better and better, which is why it's so popular. In the future, you can expect the technology behind Bluetooth to get better. Bluetooth has proven to be the wireless standard of the future, offering you wireless connectability for hundreds of different devices. For cell phones or other forms of wireless connections, Bluetooth is the one technology that you don't want to find yourself

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