"AtoZ"| All about Computer and IT
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Global Information Technology
Communications and mass information is just a few clicks away; thanks to the computer related technology, more
specifically the utility of internet, which is a part of the global information technology.
The advancement in technology has certainly had a major effect on the lives of many.
This world is becoming a global village and distances no longer a problem.
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Information Technology India
India is a country with an ancient civilization and a rich tradition of culture dating back to many centuries. Her
literary heritage is one of the oldest in the world. The Indian tradition of learning has reached gradually to
the age of modern information technology india, culminating into the latest Software technology available anywhere
in the world.
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Provide Information Technology
Using the latest in three dimensional modeling and simulation technology, scientists were able to
provide information technology, study and identify the exact mechanics of brain injuries occurring in soldiers.
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Definition of Information Technology
Information technology has been defined by the Information Technology Association of America, or the ITAA as
being the study, design, development, implementation support and/or management of any computer based information
systems. This relates particularly to software applications and computer hardware.
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COMPUTER VIRUS and How to Remove the Virus
**Computer-SIte is a great site to go for free virus scan, free virus protection and free virus removal.
Combating infections and removing viruses is now big
business. Lesson one is 'knowing the enemy'.
THE ENEMY - Crackers and Hackers
Geeks make a distinction between crackers, who break into systems to do
damage, and hackers who enjoy taking programs apart just to see how they
tick. We'll stick with the more common, though less accurate, term of
hacker. (The term 'hacker' originally meant 'someone who makes furniture'
with an axe. Crude, but effective - like most computer viruses.)
Viruses are actually a particular type of computer 'malware' - a general
term covering all types of malicious software. The most common types are
viruses, worms and Trojan horses.
VIRUSES
A virus is usually hidden inside another program such as an installation
program delivered via e-mail attachment. (Biological viruses require a
host organism to live and reproduce, hence the name.) When the 'host'
program is run, the virus program also runs. Once it's in memory the virus
is able to do its dirty work, which usually includes infecting other
programs.
After the infection stage of the virus, there's a destructive stage. The
virus waits for a pre-determined trigger (such as a specific date or a
certain number of times the virus has replicated itself) before delivering
its 'payload'. Payloads range from simple messages to file deletion
commands to destruction of the core operating system.
When first developed, computer viruses were commonly distributed on floppy
disks. With the growth of the Internet downloaded files and e-mail are the
preferred delivery mechanisms. E-mail can contain attachments which can be
any kind of computer file. Any executable file can be infected with a
virus, and shouldn't be run unless you're confident they're virus free.
WORMS
Worms are similar to viruses in that they're self-replicating. They
reproduce themselves across networks without human assistance, such as
e-mail sending. A worm, though, doesn't need another executable program to
be distributed.
Worms usually affect networks more than individual computers on the
network. Their self-replicating behavior can overload network resources,
causing slowdowns in data transmission by consuming massive bandwidth
normally used to forward normal traffic. Network systems that route
Internet traffic are just specialized computer hardware and software.
They, too, can be affected by malware.
Worms can also be designed to carry a payload, using a 'backdoor'
installation program. A backdoor is a hidden access point to a computer
that bypasses the normal login procedure. They're commonly used by
spammers to distribute junk e-mail, for example.
TROJAN HORSES
Trojan horses are the third common type of malware. A 'trojan' is a
program that pretends to do one thing but actually does something
different. (The term comes from the story of the Greeks who built a large
wooden horse in which to hide. Their enemies, the Trojans persuaded they'd
receive a gift, took the horse inside their compound giving the Greeks
easy access to wreak havoc.) Unlike viruses or worms, a Trojan doesn't
replicate itself.
Trojans may be hidden in otherwise useful software. Once started they can
do almost anything including erasing data, corrupting files, installing
backdoors and logging keystrokes so that hackers can steal information
such as credit card numbers and passwords.
FIGHTING MALWARE
Elsewhere in the series, we'll discuss what is and can be done to combat
the spread of malware. In the interim, just remember not to be passive and
expect the problem to be solved by others. Fighting viruses requires
active participation from vendors, webmasters AND users.
**Computer-SIte is a great site to go for free virus scan, free virus protection and free virus removal.
SEO - Easy Ways to Optimize Your Website
Everybody who's engaged in the internet business devotes their time, money and effort to drive
more traffic to their site. There are actually a lot of alternatives and process to achieve this.
One alternative is to optimize your website. Website optimization is very important. Why? So
that your website will be found online. Optimizing your website means you have to transform
the content of your website to a much smaller and streamlined form. Lessen bandwidth usage
while maintaining the way you want your website to look. This will definitely help save time
and money.
Optimizing your website to drive traffic can somehow be very technical and complicated. But
here are tips to help you optimize your site. Read on to know the basic tips for website
optimization.
1. Know your target visitors who will search for your site online. You need to figure out
what search phrases the surfers use so they can find your site. Always decide on the keywords
that you are going to use. Think of some ideas that the surfer will type about your website.
2. Next thing to do is to define a particular niche. You are certainly going to cover a very
broad topic. The rule of the thumb is to optimize your website with the best keyword. Your
Keyword should be direct enough so the searcher will find your site right away and he will
not get lost.
3. Take a closer look at your title tags. For those who don't know, a title tag describes a
particular Web Page. They are actually HTML tags that contains text. When you use a title tag,
make sure that it describes exactly the content of your website.
For instance, the articles title is 5 Ways to Lose Belly Fat, and then the title tag should be
like that as well. Always place your keywords in the title tag. This way any topic related to
your page will be easier to find.
Also make sure that the title tag contains various strategic keywords that have been constructed
using guidelines for the web page. Title tag is very important since search engines look for
title text when they are going to the index page. Title tags too can be a text link to the
found pages in the list of search engines.
Look closely at the title of every article and post. It is very important in optimization
since the surfer will definitely use catchy keywords for their convenience.
4. It is very important to analyze keywords. You can use the convenience of the keyword analyzer
tool. Many websites offer this service and definitely delivers more traffic too. One of the
best and most popular keyword analyzer tools is Google's.
5. Choose a relevant title. Make sure that it is descriptive enough for the surfers convenience.
At first you may not get a very good title but as you go through and complete your article,
you're going to have a clear idea what your title tag is going to be. Make a direct and
descriptive title. You know, sometimes even if the content of your article is the greatest
but your title is not, the chance of having a site visitor is very slim. So watch out for
your title.
6. Always consider your keyword density. This is one way to optimize your webpage. Keyword
phrases should appear at least three to five times in the article while keywords should
appear 10 times or more. One more tip, it is good that you repeat the main keywords title
every 200 words you made. Then for every 400-word article you write, the keyword must be
repeated twice.
7. Consider the header. Always place your keyword here when you are going to write the text
for your site. Search engines when scanning your site rates the texts in your headline.
This is the most important part. So you should place it in the page headline. Header tags
are quite large so you need to format it so it becomes smaller than the usual.
These are some of the helpful tips to optimize you website. If you follow them then you
will see your sites improvement in the search engine rankings. You really don't have to
be an SEO expert and spend a lot of money to optimize. Just follow them and surely you will get more traffic! Good Luck!.
Classification of Computers
Information of Technology: Information Age Technology....
By John Gibb
Computers are available in different shapes, sizes and weights, due to these different shapes and sizes they perform different sorts of jobs from one another.
They can also be classified in different ways. All the computers are designed by the qualified computer architectures that design these machines as their requirements.
A computer that is used in a home differs in size and shape from the computer being used in a hospital. Computers act as a server in large buildings, while the computer also differs in size and shape performing its job as a weather forecaster.
A student carrying a laptop with him to his college is different in shape and size from all the computers mentioned above.
Here we are going to introduce different classifications of computers one by one. We will discuss what are in classifications and what job they perform.
Super computer
The biggest in size, the most expensive in price than any other is classified and known as super computer. It can process trillions of instructions in seconds. This computer is not used as a PC in a home neither by a student in a college.
Governments specially use this type of computer for their different calculations and heavy jobs. Different industries also use this huge computer for designing their products.
In most of the Hollywood’s movies it is used for animation purposes. This kind of computer is also helpful for forecasting weather reports worldwide.
Mainframes
Another giant in computers after the super computer is Mainframe, which can also process millions of instruction per second and capable of accessing billions of data.
This computer is commonly used in big hospitals, air line reservations companies, and many other huge companies prefer mainframe because of its capability of retrieving data on a huge basis.
This is normally to expensive and out of reach from a salary-based person who wants a computer for his home.
This kind of computer can cost up to thousands of dollars.
Minicomputer
This computer is next in he line but less offers less than mainframe in work and performance. These are the computers, which are mostly preferred by the small type of business personals, colleges, etc.
Personal computers
Almost all the computer users are familiar with the personal computers. They normally know what the personal computer is and what are its functions.
This is the computer mostly preferred by the home users. These computers are lesser in cost than the computers given above and also, small in size; they are also called PCs in short for Personal computers.
This computer is small in size and you can easily arrange it to fit in your single bedroom with its all accommodation. Today this is thought to be the most popular computer in all.
Notebook computers
Having a small size and low weight the notebook is easy to carry to anywhere. A student can take it with him/her to his/her school in his/her bag with his/her book.
This is easy to carry around and preferred by students and business people to meet their assignments and other necessary tasks.
The approach of this computer is also the same as the Personal computer. It can store the same amount of data and having a memory of the same size as that of a personal computer. One can say that it is the replacement of personal desktop computer.
This is one of the unique articles posted weekly on http://www.computer-and-printer-reviews.com.
About The Author
John Gibb is currently the webmaster of several guide websites.
http://www.computer-and-printer-reviews.com is his latest addition.
Article Source: http://EzineArticles.com/?expert=John_Gibb
By Eric Jones
We live in the 21st century. It is a great time. It is the era of the Information Age and technology. Communication tools, faxes, mobile phones, laptops, PCs, PDAs that retrieve and send e-mails, the Internet, DSL and modem connections, video conferences, and pagers, have changed today's negotiating landscape. This is an era of accessibility on demand, nano-second technology, and instant gratification.
Technological advances have been good for documentation but they are less so for negotiations. Like a fine wine, some negotiations require time to come to reach their prime. Negotiating, an art, should not be rushed. There is a inherently natural pace to the process and circumventing that relegates it to base bartering.
The compressed time of today's electronically connected world takes the finesse out of negotiating. If you want to barter, succumb to nano-second technology. If you want to negotiate, make face-to-face meetings a part of your strategy and save the time-saving technology for procedural matters.
There are times technology is helpful. Make sure you use it to your advantage. Don't succumb to the expectations of others to do so just to make them happy. You are entitled to your privacy. Use e-mail to press matters forward. Use the U.S. Mail to buy time. Use the Internet to research your opponent. Insure you don't have too much information on the 'net'. Don't scan through documents on the screen. Print and read important documents. Take your time and consider each important paragraph.
Don't give your e-mail address or fax numbers to just anyone. Provide it only to those you want to have unfettered access to you.
The author is an assistant editor at How-to-Negotiate.com, a site featuring articles about technolgy and human communication required in the dispute settlement process and how people negotiate everything in their daily lives be it personal issues, parenting matters, social conflicts, or business or work related challenges. The site promotes the fact that conflict is a natural aspect of everyone's life and we should all work at improving our ability to negotiate the curves life throws our way.
Article Source: http://EzineArticles.com/?expert=Eric_Jones
IT Information Technology - Just what is IT?
By Aazdak Alisimo
You may know someone that works in it, and you may have seen it advertised on television, but what is IT? This article will help to clear up the somewhat shady world of IT.
To start, let's break down the term "IT" into two parts: information and technology (the secret is revealed!). Information technology, or IT, exists throughout the world and it is define by the Information Technology Association of America (ITAA) as "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." So, what is IT? In short, it is nearly anything to do with computer or computer programs and applications.
Though the aforementioned definition is the purest one, the term IT has been used in many different ways recently. It seems as though every time you turn on a television, some infomercial is blaring about gaining a degree in information technology. Perhaps this is why this term now encompasses various aspects of the computer world. Today's professionals that work in this field deal with data management, networking, engineering, database design, software design, and various administrative tasks.
Still wondering about that earlier question (what is IT?). Well, don't worry, this term confuses a lot of people. The term is mostly confusing because it means everything to do with computers, though it can also mean nothing at all. The next time that someone tells you that they work in the information technology field, you can easily assume that they do something with computer communication and technology, though their specific job may be somewhat unclear.
The basic problem with a term such as IT is that when this term was coined, there really weren't a lot of people involved with this type of work. As the years progressed, information technology really began to expand, causing various organizations within the field to spring up (if for nothing else, to differentiate between the numerous branches). Currently, there are many different groups and organizations that all have something to do with this type of work, though the many different groups can become confusing.
Hopefully, you will have a better grasp on the earlier question (what is IT?) now that is has been, partially, explained. Although this field is somewhat confusing, those that work within the field are important to the current computer world. Can the term be summed up in one article? No, it cannot - this line of work is one of the vaguest out there, yet it is still vital to technology.
Aazdak Alisimo writes IT articles for ITServiceCompanies.com - a directory of IT service companies across the country.
Article Source: http://EzineArticles.com/?expert=Aazdak_Alisimo
Jobs in Information Technology
By Aamir Noman
The rapid spread of Information Technology (IT) has generated a need for highly trained workers to design and develop new hardware and software systems. Information Technology Jobs in the job market is expected to grow much faster than the average for all occupations as organizations continue to adopt and integrate increasingly sophisticated technologies. The phenomenal growth, which the Information Technology industry is witnessing, has lead to it being recognized as one of the highly paid industry.
Career Opportunities Following are the career areas in the industry of Information Technology:
Software Offers vast range of employment opportunities in fields starting from computer operations, programming, system engineering and operation management, system analysis to system designing.
Hardware The key areas, which can be taken up as career, include hardware designing, assembling, research and development, manufacturing and maintenance of computer components.
Telecom The various fields, which can be pursued as career in:
Information Technology Jobs, include voice processing units, telephone technology, wireless technology, cellular technology and satellite communication systems.
Sales and Marketing Sales and marketing in IT industry are a specialist tasks and require a thorough study of products and their competitions in the growing market. A Marketing job covers selling of both hardware and software products.
E-Commerce and Web Development The job will include consumer/buyer information and services, developing and managing Web-portals; creation of Internet market, consulting, customer management etc.
Enterprise:
Resource Planning ERP is developing and planning the resources of entire network of an enterprise. Various fields like purchase, production, marketing, sales, distribution, service, inventory, finance, accounts, and human resource are integrated on single software through ERP, to facilitate better coordination.
Computer Operator A computer operator's job is to run both the computer software and its peripheral equipment. The job may vary depending upon size of the organizations and its exposure to computers.
Data Entry Data entry is transferring data and information into the computer and is the most basic purpose for which computers are used. Data entry operators are needed in almost every IT based organization.
Eligibility Individuals with an advanced degree in computer science or computer engineering or with an MBA with a concentration in information systems should enjoy highly favorable Information Technology Jobs. College graduates with a bachelor's degree in computer science, information science, computer engineering or MIS also should enjoy favorable prospects for employment, particularly if they have supplemented their formal education with practical experience.
Article Source: http://EzineArticles.com/?expert=Aamir_Noman
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