Open Source

In general, the term open source refers to the principles and methodologies to promote open access to the production and design process for various goods, products, and resources.  The term is most commonly used in reference to source code of software that is made available to the general public with either relaxed or non-existent intellectual property restrictions.

Open source allows users to create user-generated software content through either incremental individual effort or through collaboration.  In layman’s terms, open source means that software is made available to the general public for download.  People can then either work alone or with others to change the software, make it better, and re-distribute it.

Some consider open source as one of various possible design approaches while others consider it a critical strategic element of their operations.  Before open source became widely adopted, developers and producers used a variety of phrases to describe the concept.  With the rise of the Internet and its enabling of diverse production models, communication paths, and interactive communities, the term open source gained popularity. 

In 1998, Netscape released a new source code for its version of an Internet web browser called Navigator.  It was at this time that the term and concept of open source was introduced.  The idea was to release the company of the connotations that come with the terminology of free software.  They licensed and released their code as open source under the name Mozilla.

Open source development has grown in popularity over the years and has even started a movement among proponents of the concept.  Open source has extended beyond the software market into other areas of production such as food as well as health and science.

There are many places that facilitate the open source methodology.  The creation of blogs is one way to distribute information among the public.  Message boards on the Internet are another outlet.  These message boards are thought to be one of the integral ways to grow the open source movement as people can freely discuss and implement changes to various programs and products with the convenience of the Internet.

The open source movement is not without its critics.  Those against open source say that direct compensation for intellectual property is essential to the creation of various new technologies.  They say that there is no real incentive to develop new products when they are available for free.  Critics also say that open source causes a chaotic environment when many people are working on the same projects with little to no leadership.

Whatever side of the fence you are on, the fact remains that open source is a wave of the future and will hold new and exciting developments in various areas of consumer life.  Open source, whether good or bad, is here to stay.

buster voip

VoipBuster, A Company That Will Provide You Free Calls


Today, free things are hard to find and everything may seem to be all for sale. From getting your food to making calls, all these things are offered with a price. However, because of the advancement of technology, there is now a way to call your friends and family who lives in different countries for free.

It is now possible for you to call your family and friends cost free, even if it is a long distance call. And, the best thing about it is that the calls are unlimited. With this kind of feature, who wouldn't want to get it? Another great thing about this is that it offers great features that will usually be expensive when you get it in a conventional landline phone.

If you are wondering what kind of service this is, it is called VoIP. First of all, one company that offers these services is called the VoipBuster. This company offers VoIP and also has great VoIP offers for its subscriber.

However, before you subscribe the services offered by VoipBuster, you first need to know all about VoIP first. Since VoIP is relatively a new technology, you need to know about it first in order to know what to expect with VoipBuster.

VoIP is very much like your conventional telephone where you make calls and receive calls. However, unlike your conventional landline phones, VoIP doesn't use telephone lines to transmit and receive signals. VoIP uses the internet to transmit and receive data. And, for this reason, VoIP will be able to provide you with better voice quality and faster transmission rate. This is because your voice is converted into digital format, and transmitted in the internet. You will also receive digital signals from the person you are speaking to in digital signal. This is one of the main advantages of VoIP.

Another great thing about this technology is that it is able to offer its user's great additional telephone features for free as a standard package where it can tend to be an expensive add on in conventional landline phones. Features such as three-way calling, caller ID, return call, audio conferencing, call waiting, video conferencing and others are offered by VoIP as a standard feature. This means more value for your money.

Long distance calls also tend to be cheaper in VoIP than on conventional landline phones. Some companies even offer free calls. However, this only happens when the person on the other end of the line is also subscribed to the same VoIP service provider you are subscribed in.

However, VoipBuster offers free VoIP to landline, VoIP to VoIP, and VoIP to mobile phone calls absolutely for free. Here are the countries that you can call for free if you use the VoipBuster:

•    United States
•    Taiwan
•    Switzerland
•    Spain
•    South Korea
•    Singapore
•    Andorra
•    Austria
•    Australia
•    Canada
•    Chile
•    Cyprus
•    Belgium
•    Denmark
•    Finland
•    Estonia
•    France
•    Hong Kong
•    Ireland
•    Iceland
•    Italy
•    Japan
•    Liechtenstein
•    Luxemburg
•    Monaco
•    Malaysia
•    Netherlands
•    New Zealand
•    Norway
•    Panama
•    Portugal
•    Puerto Rico

Although you need to top up your account to make these calls, it is definitely a great and cheap way to get in touch with your family and friends. By purchasing credits, you will be entitled to 120 Freedays. This means that you can call people in the mentioned countries at no cost at all. If the 120 days expires, the normal rates for calls will apply. However, because it uses the VoIP technology, you can expect that the normal rates will be far lower than the normal rates in conventional landline phones.

If you are interested in getting the VoipBuster services, all you need to do is have an active high speed internet connection, download the VoipBuster program in your computer, register and start making free calls. If you need to call other countries besides the mentioned countries, VoipBuster normal rates will apply.

With the available 120 days of free calls to the mentioned countries, just imagine how many of your family and friends you can call at an unlimited time. With VoipBuster, you'll never worry about large phone bills when making long distance or overseas calls again.

Adware and Spyware

Adware and spyware, knowing the basics

People think that there is actually no difference between a spyware and an adware. Spyware is just a web term used to refer to an advertising supported software, which is otherwise known as adware. These are the pop-up ads that often come out whenever we open a website or download a shareware software. But according to some web experts, spyware is much much more.

Supporters of spyware and adware say that though it can be pretty annoying at times especially if you are really in a hurry, both do give consumers huge benefits. Because the product ads generate income for developers of shareware software, consumers can get them for free. Developers are in turn paid for their work. Of course, if you don’t want to be bothered by the constant pop-ups, you can always pay the licensing fee or the regular fee for the software. If you want it for free, you just have to sacrifice through the spyware.

There is however another downside to it. Spyware, from the name given to it, is actually used as a tracking device in your computer system. These tracking devices will look into your surfing habits, your chatting logs and even the number of times you open your email. If designed or programmed the right way, it can discover just about everything else in your system.
And because the program runs in the background, there is no way that a person can control the kind of information that he or she sends out.

These kinds of programs were actually originally used by parents or people in the business sector who wish to track down and put on record web activity. It is actually beneficial but not when people are not aware that they are being tracked down. This is often the case when people download software over the Internet. As mentioned before, it is used by companies to advertise their products and in turn help the developers of software keep their costs down so that they can afford to offer their programs for free.

Although privacy issues indeed come into play, there is nothing illegal about it. In fact, its use is prevalent all over the World Wide Web. There are however some areas that people who value their privacy will object to. Because of this, people are given the option to refuse the software.   

There is really no way that one can avoid adware and spyware as these programs are packaged with the software that you will be downloading from the Internet. The most that you can do is to avoid downloading from the internet and to refuse any file downloads that you did not personally authorize. It is also good to only view websites that have a good reputation or those that have anti-spyware and adware programs installed in their pages.

Finding Affordable Hard Drives

One thing is for sure, the hard drive is something that no computer can be without. In fact, when you are looking to upgrade your computer or buy a new one you should use the hard drive as one of the most important considerations to follow. There are all types of affordable hard drives to choose from though. These will help to not only give your computer a place for its data to be stored but they will be useful in that you will not have to spend more money than you need to.

The first thing to consider when finding affordable hard drives is the capacity of the hard drive. While larger hard drives have become the way to go for some computers these days the more affordable hard drives are going to be the ones that have lower levels of data capacity. A hard drive that fits 250GB of data will certainly cost less than that of an 800GB hard drive.

Another thing to consider for the affordable hard drive is the USB capability. Some hard drives will only be able to be used inside of the computer. Some of them can be read through a USB connection. This has turned into one of the most convenient methods of data storage on the market. Groups like Western Digital and Seagate have been making these, but it should be noted that the most affordable hard drives in this range are ones with lower capacity levels.

Affordable hard drives will still have great data transfer rates also. Inner zone transfer rates for one of these cost efficient hard drives will be at around fifty megabytes a second and close to a hundred megabytes in a second for data at the outer zone.

There are various different places where you can find affordable hard drives. For instance, a typical computer hardware store will have new hard drives available for sale at different price levels so you can find one that will be in the range that you are willing to spend it on.

Some independent computer hardware stores will have refurbished hard drives for sale. These have already been used but are cleaned up and restored so that they will work just like new. Even the higher end hard drives may be available in refurbished quality. This will mean that you can save a great amount of money on top quality products.

An outlet store will also have affordable hard drives. This is because these hard drives are sold individually to people who are looking to customize their computers. In addition, with no middleman involved money will be saved because of the small transfer costs. You can find an outlet store in your area through your local phone book.

Online sites can be useful too. TigerDirect.com, which is the website for the Tiger Direct Outlet Store, has many of these affordable hard drives. SuperWarehouse.com has plenty of hard drives and special deals for sale too. PCNation.com has more hard drives and arranges its hard drives by capacity size. Of course, those are some of the more credible sites to visit. Remember, some online stores may not be protected or secure like these three are.

A hard drive is something that you should use for your computer. By using the considerations of the hard drive in terms of the size, you want and by looking at various different stores, you can find affordable hard drives that your computer can use without you having to spend more money than you want to.

Re-Install Browser

Yahoo and google Firefox lock-ups whether it's corrupted. Re-installing the internet browser will be able to fix the case. Just before re-installing the idea 1st make certain you remove it accordingly. Any time a system will be taken away from your computer that results in positive underlying facts. This information is sometimes introduced being the computer synonyms. The personal computer registry within Home windows established operating systems merchants crucial basic information and facts of all software. Subsequently, when treatment of internet, additionally it is best if you managed a personal computer cleaning up have a look at by way of a fantastic software system. Adhere to the procedures following:

One. Then click Start out

2. Drop by Cpanel

3. On top of things -panel select Packages in addition to Features

4. Right-click on the search engines Opera and click on un-install

5. Observe the on-screen information

6. Restart your personal machine

Quick Backup Drives

The method is rather uncomplicated with the perfect arranged of instruments.

To upgrade the difficult disk drive in your computer system with an SSD equipment, adhere to these standard steps.

•     Backup the latest hard disk generate
•     Replace the method challenging disk generate with an SSD equipment
•     Restore from an picture backup to the SSD device

one. Backup The System Hard Disk Drive

Initial, backup your method tricky disk drive with a product that performs full technique recovery, this sort of as Rebit products. Not only does this preserve the recent affliction of the program tough drive, it makes sure continuity of reputable backups.

two. Exchange The Push With An SSD Generate

To guarantee compatibility, it is vital to determine the form of challenging disk push at the moment in use. For case in point, desktops made in the past number of many years usually have SATA tricky push bus technology. This is unique than an older desktop, which may possibly have IDE tricky drive bus know-how. Also, a laptop computer will have a two.5" challenging drive, whilst a desktop normally has a 3.5" tough drive.

Most importantly, get a SSD equipment with sufficient potential. This ordinarily calls for a SSD device with equivalent or better capacity to the gadget getting replaced, as measured in gigabytes (GB).

three. Restore from your picture backup to the SSD push

With the SSD gadget set up, commence to the full technique recovery procedure. Typically, this involves beginning the laptop or computer from a recovery CD-ROM and next the proper steps to recover the data from the backup storage to the system hard disk push.

Backup SSD Drives

Even though it may well look that fixing the reliability situation with the SSD devices reduces the need for backing up, this is not the circumstance. The SSD system is still as vulnerable to virus attacks, failed software program and Windows updates, and energy failures as a normal difficult disk drive. Maintaining dependable backups of your Windows personal computer is essential even with the SSD.

Reasons to Upgrade Tricky Drives With An SSD Generate

The SSD devices tolerate vibration and shock and are wonderfully rapidly, in particular during the Windows startup stage. They are great for apps the place dust, shock, and abuse are probably to occur, such as a battlefield. For the more casual user, these as road warriors, they offer you a virtually instantaneous start off and take in a lot less than half the electricity of a standard rotating tricky disk drive when idle and only marginally a lot more than that when lively.

At the core of the SSD device is a sound state transistor flash memory cell, and these memory cells can be accessed a great deal like a Random Accessibility Memory (RAM) machine. The memory cell might be examine in an limitless style, but there is a limitation when producing or changing the memory cell. Early attempts at SSD devices resulted in unacceptable reliability. For this cause, the SSD suppliers have been improving algorithms that allow the SSD to immediately relocate memory areas to stability the quantity of compose cycles across the billions of memory cells. Because of these algorithms, the practical daily life of the SSD has been extended to acceptable durations.

computer desks for small spaces

Check the building as perfectly, seeing that strong material is not sufficient to provide risk-free compartment for your personal pc areas.

Absolutely, you should also consider your comfort and ease in working on your desk. Even if you are purchasing the strongest or the most pricey desk, you will not take pleasure in working if the style of the desk is not secure for you.

By looking at these critical factors, you can effortlessly find out the ideal computer desk to hold your personal pc. The far better consideration, the safer your computer system technique will be.

These days, solutions has turn into even more innovative and it is improving upon every last day. As like, it is almost extremely hard to obtain any family home without the need of a computer due to the fact it is a quite useful tool no matter if for get the job done, studies, enjoyable, leisure or for communication with friends and friends and family. On the other hand, if you are residing in a smaller apartment and room is a constraint that you have to deal with, setting apart smaller space for your laptop or computer can be a wonderful problem. This does not have to be the scenario if you invest in a modest corner computer desk.

When you arranged up your pc, you have to attach gadgets and hardware to it and all these, additionally the laptop or computer table, are likely to just take up a good deal of room. For someone dwelling in a more substantial residence, this is not heading to pose any concerns. Nevertheless, if you are residing in the college, dormitory or in a tiny apartment, you might possibly not have the luxury of owning loads of room for your substantial laptop or computer desk. In this circumstance, the suitable selection would be to order a little corner personal computer desk which will not consider up as considerably room as the cumbersome pc desks but at the exact same time, supply just as very much performance and ease of use.

For anyone who has a tiny house with very constrained area, you will not regret acquiring a small corner personal pc desk which you can readily assemble on your possess and it will also last you for a pretty prolonged time. A whole lot of these desks are produced of durable wooden, cork or stainless metal. You will not confront any problem choosing one particular that can healthy your home's design and style and theme because there are countless various styles on the market to fit your wants.

Some of these small computer desks have drawers and cabinets for you to retail outlet your stationery as effectively as other supplies and these tables are normally built of wooden. If you desire to order a smooth and minimalist laptop table, you will discover that most of those are constructed of a combo of cork and metal. These tables have frames created of steel and wheels for you to roll them all-around so if you need to transfer the desks from a person area to a further, it can be executed with ease.

You can easily acquire a single of these compact corner personal pc desks from any home furniture retailers that specializes in computer system tables or any wooden merchandise.

Put Movies On Iphone

If you own an Iphone, you've probably already worked out how much fun it is to use it to watch movies-it has that nice big screen, and the sound quality is surprisingly good too. Now imagine if you knew how to download Iphone movies without having to pay.

As you may imagine, downloading Iphone movies for free can be very difficult unless you know exactly how to do it – not only that but you can get yourself into some serious trouble if you download from the wrong place. Use the following guidelines to help you avoid any problems.

1-Take the time to find a site you can trust. Hopefully your downloading relationship with this website will be a long and fruitful one, so it makes good sense to pick a site you can live with. A good way to find a reputable site is to ask around, or maybe search on the internet for some reviews or customer points of view.

2- Always keep in mind that many websites will be falling over themselves trying to get you to visit them. What's more, many of them won't be too subtle about it, so you'll be faced with a million popups in some cases, and in most cases it can prove very difficult to negotiate your way out of there. Generally speaking, you are usually better off just steering clear of sites with lots of popups like that.

3-Forget about using the torrent sites, P2P sites or whatever they are called these days. There have been numerous famous sites like this over the years, with several being taken to court etc. The simple fact is that downloading from sites like this is completely against the law in most places. If you do insist on getting your free downloads from somewhere like this, please be sure to check all applicable laws for your area, as people really do go to jail for things like this. Is it worth jail to get the new Matt Damon?

4-The last tip for downloading Iphone movies is to get ready to pay. There are a few new sites around these days that will give you access to huge download databases, and totally free downloads, but not before you pay their admin fee. This fee usually gives you totally free downloads, and sometimes it lasts for your whole life too, so it's pretty good value. As with anything, there are good and bad sites like this, so it's definitely worhwhile for you to look around before you take the plunge.

get music for iPhone

If you have an Iphone, firstly congratulations-it's been very tough to get hold of one, especially in the hustle and bustle of the holiday season, and secondly, have you ever wondered how to get a good music collection onto it?

If you have, you will be glad to know that essentially there are two main sources for your music (unlike the lucky Zune owners, Iphone owners aren't able to transfer songs directly with their friends). The best way to get an absolutely huge selection of songs into your Iphone is by downloading them from the internet, and the other, slightly less cool way is to simply transfer your existing cd collection onto the iphone. This is ok, but it just means the same old songs for you.

Using either method will mean you need a computer, and if you plan to use the internet you'll obviously need some kind of internet connection, and to transfer from CD you will need some ripping software-this is just a fancy name for a program that records music from your CD and saves in into Windows as a file so you can then do what you like with it. It's pretty fast as well, so it's not like you have to play the whole CD through or anything, it will usually take a couple of minutes tops.

Once you have the songs you want to transfer stored on your computer, it's simply a case of connecting the Iphone to the computer and letting Itunes sync with it, which should then store all the new stuff onto the Iphone. Simple huh?

Downloading songs from the internet is a little more complicated, but then it's worth it as you'll be getting a lot of new music. The main thing to take into account is that you want to stay very aware of how secure your computer system is. Iphones and Ipods etc are very popular, and the hackers and other unsavory characters know it only too well. There are a few sites around which will claim to offer all kinds of free music and downloads etc, only to give you downloads that are infected with trojans/viruses etc. For this reason you need to be very careful what kind of site you are using.

You'll find that there are some sites out there that will give you real free downloads for your Iphone, but they certainly take some finding. A useful way of spotting them is to expect to play a nominal fee to get your membership. It's something like $50 or so for life, which may seem steep but it usually gives you totally unlimited downloads, so offers good value in the long run.

Once you manage to get a few downloads, you can just transfer them to your Iphone using the Itunes program.

Basics of Joomla

Joomla is an open source content management system used for developing websites and other web based stuff like weblogs, portals etc. A software development company makes use of this effective content management system in order to build and manage the backend profile of various websites like handling the content of a site.

Joomla is basically a mixture of three main ingredients such as:
1. Joomla acts as a database to store content of a web page
2. Joomla provides the templates to customize the layout and presentation of a site.
3. Joomla can be considered as the software which provides the features of a database as well as a uniquely well developed template to build a web page.

Joomla consist of important things such as platform, interface, content handlers, machine to machine communication and extensions. Extensions are inbuilt in the system, and if anyone wants to add more features to a site, that can be done by installing more extensions from the web. One of the most important things about Joomla is that it’s free of cost. A project can simply be started by following few steps related to the installation of the software.

Various features of Joomla are listed down as:

User Management system: Joomla supports a registration system that allows users to configure and manage their accounts and set different permissions for other users. One can simply use other account credentials such as Gmail to login in the system.
File Manager: Joomla supports a file manager to manage files and folders. It also has text editor to include any image or URL in the content as per the need.

Freedom to choose from extensions: Joomla integrates a large number of extensions to suite different needs. It can very well customize a site and can make it the way one wants it to be.
Contact and banner management: Contact manager helps the owner to manage the contacts and find the appropriate user for right work. By banner management, an owner can set up different banners, URLs from the collection.

Custom search: Joomla provides an option of custom search to enable the users to find any search item.

Content Management system: Joomla provides a simple content management system in which the owner or user can keep the articles, blogs in a simplified manner. Any new user can email those articles to friends and the owner can also hide content for safe keeping.

Syndication and menu manager: Joomla allows user to syndicate their favorite content and they can also subscribe to it. Menu managers create as many menus and menu items as well. Then these can be placed in any order as per the requirements.
Templates are the easiest path to make a site look as the way one wants it to be. One can use multiple templates in Joomla to customize each and every part of a website.

Various web services provided by Joomla help a user to call the procedure remotely via HTTP and XML. Joomla also support multiple languages for world. So, the owner can easily switch between various languages.

Joomla also maintain an in-built help system which helps users in finding what they require and thereby assisting in troubleshooting the various issues which a user can come across.

Google+ to improve sign-up process

Google has pronounced that it is ‘making a series of improvements’ in response to open cheer that a fledgling Google+ amicable network allows usually genuine names and not sobriquets, nicknames or online handles.

Bradley Horowitz, Google’s VP of Product, has posted some serve sum in an try to explain Google’s position on unknown users and ‘other’ names other than your genuine name (such as nicknames, your lass name, and so on).

Horowitz wrote, “We’ve beheld that many violations of a Google+ common name routine were in fact well-intentioned and unconsidered and for these users a routine can be frustrating and disappointing.”

Private contra Public

“So we’re now creation a series of improvements to this routine – privately per how we forewarn these users that they’re not in correspondence with Google+ policies and how we promulgate a remedies accessible to them,” he went on.

The Google exec combined – maybe many importantly – “we’ve beheld that some people are regulating their form name to boaster nicknames, lass names and personal descriptions.

“While a form name doesn’t accommodate this, we wish to support your friends anticipating we by these swap names and give we a distinguished approach of displaying this info in Google+.”

Nicknames not accepted

Google’s try to bar unknown users or pseudonyms on Google+ has also captivated a courtesy of a UK’s Information Commissioners Office (ICO), with a information rights organisation meddlesome in meaningful some-more about a latest changes in Google’s Profile policy.

ICO staff are now looking into a approach in that Google deals with a Google Profile policies on identities on a new Google+ network, as good as other Google apps and services, yet it should be stressed that no central ICO examination has to date been announced.

Elsewhere, there are claims of a slack in trade on Google+ from analytics organisation Experian Hitwise, with a new news that sum Google+ visits fell by three percent over a week of Jul 23.

TechRadar has contacted Google for serve criticism and construction on this latest report.

Still confused about Google+? Our accessible video examination should get we unresolved out and adding to circles like a pro. 

http://www.itcode.org/

Using Vistrails on OS X 10.6

Curently I am trying to install Vistrails OS X Version. I notice from the installer (can be downloaded here), the OS X version is for 10.5 (Leopard). And after trying a few times, VisTrailes apparently is not 10.6 compatible (yet). I guess Apple is changing a lot with this OS X Version but did not put anything to handle backward compatibility, especially OpenGL based program.

Fortunately, the guys from University of Utah is kind enough to help me to do the installation. Here are a few steps to get VisTrails on OS X 10.6:

1. go to terminal

2. rm -rf ~/.vistrails and rm -rf ~/.matplotlib

This first two step is to make sure that previos vistrail error removed from your OS setting. I guess when you open VisTrails, it writes lots of (hidden) things in your OS

3. install VisTrails as usual at your Applications folder

4. in terminal type cd /Applications/VisTrails/Vistrails.app/Contents/Resources/lib/python2.5

5. type DYLD_LIBRARY_PATH=/usr/lib DYLD_PRINT_LIBRARIES=1 /System/Library/Frameworks/Python.framework/Versions/2.5/bin/python

6. it will compile something and then ask for input:

>>> import matplotlib.axis

7. It will compile few things and then type exit() to quit

After this steps, you will be able to run VisTrails normally. Great program for Scientific Visualization.

Inside CPU

Ø Motherboard: It is the central or primary circuit board making up a complex electronic system such as a computer. A motherboard is also known as a main board, logic board or system board.
Ø Central processing Unit: A CPU is the main component of a digital computer that interprets instructions and process data in computer programs.
Ø Random Access Memory: A RAM allows the stored data to be accessed in any order. RAM is considered as the main memory of the computer where the working area is used for displaying and manipulating data.
Ø Basic Input Output System: BIOS prepares the software programs to load, execute and control the computer.
Ø Power Supply: Power Supply supplies electrical energy to an output load or group of loads.
Ø Video Display Controller: It converts the logical representation of visual information into a signal that can be used as input for a display medium.
Ø Computer Bus: It is used to transfer data or power between computer components inside a computer or between computers.
Ø CD-ROM drive: It contains data accessible by a computer
Ø Floppy disk: It is a data storage device
Ø Zip Drive: It is a medium capacity removable disk storage system.
Ø Hard Disk: It is a non-volatile data storage system that stores data on a magnetic surface layered unto hard disk platters.

Different types of Computer

Based on the operational principle of computers, they are categorized as analog computers and hybrid computers.

Analog Computers: These are almost extinct today. These are different from a digital computer because an analog computer can perform several mathematical operations simultaneously. 

Hybrid Computers: These computers are a combination of both digital and analog computers. In this type of computers, the digital segments perform process control by conversion of analog signals to digital ones.

Following are some of the other important types of computers.

Mainframe Computers: Large organizations use mainframes for highly critical applications such as bulk data processing and ERP.

Microcomputers: A computer with a microprocessor and its central processing unit is known as a microcomputer. When supplemented with a keyboard and a mouse, microcomputers can be called as personal computers. A monitor, a keyboard and other similar input output devices, computer memory in the form of RAM and a power supply unit come packaged in a microcomputer. These computers can fit on desks or tables and serve as the best choices for single-user tasks.

Personal computers come in a variety of forms such as desktops, laptops and personal digital assistants. The spare parts of a desktop computer are readily available at relative lower costs. Laptops run on a single battery or an external adapter that charges the computer batteries.

Personal Digital Assistants (PDAs): It is a handheld computer and popularly known as a palmtop.

Minicomputers: In terms of size and processing capacity, minicomputers lie in between mainframes and microcomputers. Minicomputers are also called mid-range systems or workstations.

Supercomputers: The highly calculation-intensive tasks can be effectively performed by means of supercomputers.

Wearable Computers: A record-setting step in the evolution of computers was the creation of wearable computers. Military and health professionals have incorporated wearable computers into their daily routine, as a part of such studies. When the users’ hands and sensory organs are engaged in other activities, wearable computers are of great help in tracking human actions.

Evaluating Used Computer

Used computers are available plenty in number. The next one is about the functionality of the used computer and the longevity of the computer parts of the used computer. This makes it very important to evaluate the used computer before buying it. The used computer’s physical parts should be inspected thoroughly. Checking needs to be done to find out if the used computer has an original version of the operating software without which the computer is not worth buying. Manuals, licenses for software applications, discs and fonts should be got along with the computer. The operating system of the used computer should be compatible enough to run the required applications of the buyer. Some times the seller may sell a used computer along with used disk drives, scanners and printers and include the cost of them too. It should be if all the hardware components inside the computer like the CD-ROM drive, sound card, number of RAM sockets etc are if present or not and if present what are the components in use. If the purchaser has already got some computer components like the monitor, printer and so on, the used computer which is bought should be compatible with them. It is not advised to buy a used computer which is very old. Also it is good to find out if the used computer comes with a transferable warranty or service, if so it is worth buying.

The buyer should not end up overpaying as used computers depreciate at a lightning speed. Unfortunately, there is no reputed or unbiased source for knowing the prices for used computers.

Tips Selling Used Computers

Many people sell their used computers for a variety of reasons. Some sell their used computer instead of throwing them as a trash get some money from them, while others sell their used computers to buy new computers with the latest features and technology. Not only individuals sell their used computers, but also large numbers of organizations or firms sell their used computers. They do so because the computer systems may require maintenance and repairs, after some time due to the decrease in performance seen in the computers after some years. Instead of spending more money on the maintenance and repairs they sell and gain money, as there is a great demand for used computers. Some parents buy used computers for their children just for browsing the Internet and to play games. For this purpose, a used computer is more than sufficient than spending huge amounts on a new computer. Most of the used computers are sold in the online market, as it attracts all sorts of buyers. There are many numbers of online classifieds or auctions or online dealers who sell used computers. Selling used computers are a better option than throwing them as trash or keeping them in a corner occupying space and collecting dust. The selling price of a clean used computer is always better than the one, which is full of dirt and dust.

Unused scanners, printers can also be bundled with the sale of the used computer. The benefits or features of the computer can be highlighted for better sales.

Netbook Asus Series EEE PC 1005HAVU1XWT

The netbook doesn't weigh a lot when compared to different netbooks in its category, we could express it's actually alternatively light. While it has promising equals, EEE PC 1005HA-VU1X-WT even so amazes me with its trendy design as well as the rest. I'm positive that everyone can love this netbook as it is perfect in most aspect. It is rather interesting to obtain this particular device because Asus used numerous new systems on this unique netbook. This EEE PC 1005HA-VU1X-WT netbook coming from Asus carries on impress all of us featuring a amazing design and style, increased performance and also remarkable transportability. Since Asus released EEE PC 1005HA-VU1X-WT most of us had been looking forward to this specific moment and now it is there, lastly we can easily set our own hands on innovative Asus netbook.

The cpu placed on Asus EEE PC 1005HA-VU1X-WT netbook is top-of-the-line one of cutting edge processors. Audio speakers come with EEE PC 1005HA-VU1X-WT netbook seem to be rather not too strong, however they are nice for a netbook. The keys of Asus EEE PC 1005HA-VU1X-WT netbook is known as an chiclet-style variant, the keys feel totally good on the tips of your fingers. Personally I do not love chiclet-style keyboards, nevertheless I have to acknowledge they look pretty luxurious.

The model fan, whilst busy under numerous occasions, seemed to stream a lesser amount of air than needed to keep the netbook cool under serious demands. Heat management for the Asus EEE PC 1005HA-VU1X-WT was to some extent less than common when under stress.

It's a step above similarly priced netbooks.

about Modem ADSL

ADSL refers to asymmetric digital subscriber line and a kind of DSL broadband internet connection technology. There is a specific attachment of a special filter connected to the user’s telephone line which enables both ADSL and genuine telephone services need to be run in synchronization. This filter is popularly known as micro filter.

The construction features of ADSL computer modems call for the services of subscribers and ADSL modem which should be kept in close geological area to the internet service provider’s central office.

The latest ADSL technology is majorly represented by ADSL computer modems. This modem provides a popular and cost effective solution for end users. It enables the faster data transfer directly to the personal computer of the user. The cost of this modem differs depending on the user’s demand for the speed variations in the server. The minimum available configuration is 1.5 Mbps and maximum is 8 Mbps.

ADSL computer modems are generally of three types including Ethernet, PCI and USB.

new in FTP

FTP is a standard network protocol used to copy a file from one device to another over a TCP network, such as Internet.

Just about 10 years ago you could download any file from your favourite FTP server.

Besides FTP could be used to back-up important files, that can be easily done using FTP clients. And, finally, you can share your files on your FTP server and download them when it is neccessary.

These tasks could be done by any modern FTP software, but the problem is that some operations are still could not be done(for example folder synchronization, scheduling, editing/viewing remote files, searching remote files). The using of FTP has changed many times but FTP clients only had minor changes.

And now I want to present you a new FTP client named "UploadFTP" which was created not very long ago and it is oriented only on modern tasks: synchronization, backuping and sharing files, etc.

Just your local files, your remote files and the list of servers. You can browse as many FTP servers as you want simultaneously.

It is very easy to search files over a server, UploadFTP automatically controls upload/download speed and it allows you to transfer many files at the same time.

why children need computers

Why do children need computers?

The easiest answer for this one is: “A child needs a computer so that he can play computer games”. Almost everywhere you go, you find computers. At office or at home, a computer is almost indispensable.

Educational products are nowadays released mostly on computer CD’s.

More and more educational products for children are now released in the form of programs and electronic encyclopedias and can only be viewed with a computer, somehow forcing you to buy a computer for your child. Unlike the traditional learning methods, learning with a computer has the advantage of interactivity. Children love to learn with computers, because they can control the way they learn and what they learn.

Of course, a child will use a computer mainly to play computer games. At first, the computer will be for your child like a more expensive toy. The computer will be his favorite toy. Your child will play computer games the entire day. However, after a while, the child will settle down and start exploring the other sides of the computer.

Which computers for children to buy?

Since the main use of the computer for your child will be to play games, you should choose a fast system on which modern games will run smooth. Also, because modern computer games use lot’s of space, a high capacity hard drive is recommended. The computer you choose for your child should be equipped with a DVD, because DVD’s are starting to replace CD’s as main data transport medium.

Now that you have chosen a computer system for your child, all you need is a monitor. You can choose from two types of computer monitors: CRT and LCD. CRT computer monitors are bigger and cheaper. They are more indicated for children who like to play computer games a lot.

Pick A Portable DVD Tablet

There are certain things you should thus consider before picking up a portable DVD tablet.
For your car, the best would be the laptop style DVD player which is indeed called the tablet. Coming to the laptop style DVD tablet, to begin with, just keep minor things in mind such as, always buy branded tablets, always find the one that is in your budget and yet, serves your purpose pretty well. Now, while picking up a portable DVD tablet, you should go for the one that has a great battery life. It is portable and you'll be carrying it around. You can't always be in a place where you can charge your tablet, right? There is WMV9, MPEG-2, MPEG-4 ASP, et cetera. Keep in mind to take a portable DVD tablet the supports writable DVDs and CDs too.
Coming to the sound, since is a portable DVD player, the sound system has to be great. Check the quality of the sound system and do some good research before you buy your portable DVD tablet. The sound should be great even when played without the headphones. Just small things for you to consider before you buy a portable DVD player so that you can choose the best one.

Tips Data Center Site Selection

1. A data center should be situated on stable geography. Choosing (or building) a data center situated in a flood plain or on a tectonic fault that regularly generates earthquakes is not such a good idea. Much of New Orleans, for example, is several feet below sea level, as the public discovered during the Katrina hurricane disaster. As global warming continues to energize the world weather "heat engine," tornadoes will become a greater problem, leading to either the construction of bunker-like facilities, or else data centers in such areas will be placed securely underground.

2. Given today's terrorist threats, plopping down such a computer facility in the middle of major cities is not such a good idea either. After an international telecommunications company named Interoute Telecom was hit by two terrorist attacks (the Irish Republican Army blew up one of their buildings in London's Docklands area housing a huge Ericsson AXE10 telecom switch area - which continued to run; and then the company lost its New York office in the 9/11 disaster) the company's founders, Simon Taylor and Nick Razey, decided to go into the data center business. They noticed that many New York businesses relocated their data centers out of New York to New Jersey, Connecticut, and various other relatively distant points. So when they founded Next Generation Data and built Europe's largest data center, the 750,000 square foot NGD Europe (also known as NGD1), they situated it far from London, in Wales, where property was inexpensive and electrical power was in abundance.

3. Make sure you are building a computing nexus where there are major tax incentives. U.S. state and local governments offer all sorts of incentives for data center operations, even customized incentives programs offering partial or even a full exemption of sales/use taxes on equipment, construction materials, and perhaps even electricity and backup fuel expenses.

4. In a world of skyrocketing user demand, you want a data center that offers big optical fiber pipes, simultaneously connected to the building by several carriers. (A "carrier-neutral" collocation facility.)

5. You also need your optical pipes to be capable of supporting redundancy in case of a disaster, and diverse paths to distribute the data traffic load.

6. Your building should be near an emerging population of users: China, Singapore, etc. It's not absolutely necessary, but it's good to lessen the number of "hops" to customers and with it, the possibility of outages or high latency in signaling back and forth. Silicon Valley encompasses some of the world's largest technology corporations (Apple, Cisco, Google, HP, Intel, etc.) as well as top universities. It's no wonder that data center construction has boomed in the region, with a market measuring over 5 million square feet of facility space as of mid-2011.

7. Don't place or select a center near locations were other companies manufacture, store or transport hazardous materials. New Jersey's "chemical coast" is one such example.

8. Try to situate your data center is a cool climate so that "free cooling" can be used to keep the equipment cool, instead exclusively using air conditioning or "chillers" as they are known.

9. Don't pick a data center situated in the flight path of a major airport. (Once in a blue moon, they fall down and go boom.)

10. Keep your racks and computers out of the basement of your building, or anybody else's, for that matter. Secondary computing and storage should be safely distant and not below a population that can cause trouble (set accidental fires, set off sprinkler systems and flooding, and so forth).

http://ezinearticles.com

History Of Podcasting

What we know as a podcast had its beginnings in the creation of MP3 files that could be downloaded and played on the iPod device developed by Apple Computer. The release of the iPod encouraged people to share their music with others. They then realized that they could create, upload, and download information other than music. Some iPod users reverse engineered the device and loaded various types of firmware or operating system software. Other users decided that they would share sound files to be played on the iPod, since the technology for distributing such files already existed. RSS feeds provide a way to generate machine-readable files, which could then share data between servers and users. Many blogs used RSS to keep their readers up to date on blog posts. Some visionary podcasters realized that they could enclose links to sound files inside the RSS feed and download these files to a computer.

The iPod podcast became increasingly popular as this change in RSS feeds was implemented. Podcasting became a common way to share files, and users began to view podcasting as a way to become, essentially, radio-show hosts or DJs. Then software was developed that would automatically check the RSS feeds, extract links to podcast episodes, and download the files. This software is called a podcast client.

By the time all this was happening, podcasting had expanded far beyond Apple's iPod device. Developers had even discovered ways to use PlayStation Portable gaming systems as a podcast player. While this was more difficult than downloading a podcast to an iPod because of PSP's different file format, more PSP podcasts began appearing on the Internet. Podcasting also expanded into use by individuals who didn't have iPods, but who viewed podcasting as a very convenient technology for receiving news, music, and entertainment over the Internet.

Now, iPod podcasting remains in use, but fewer people subscribe to podcasts in order to get portable media files. This still represents an attractive feature of podcasting, but it is overshadowed by the use of podcasting as a content delivery system. Podcasting is currently associated with a large and growing number of audio and video blogs, for example. With these offerings, content is not delivered via posting, but through media files that are uploaded to the blog. These types of blogs, and podcasting in general, benefit from the constantly decreasing cost of broadband Internet connections and the growing number of people who have high-speed access to rich online content that includes multimedia files.

about firewalls

You need a firewall! In computer terms, we need to stop communications between your computer and others on the internet.

Where do I put this firewall?

Firewalls can be on a hardware box (a separate unit or part of your internet modem or router) or can be software installed on your computer. Most popular security software packages also include a firewall. A hardware firewall is great for providing a barrier before your computer is even reached and will also mean that your computer doesn’t have to spend its precious resources on running the firewall software.

If Microsoft gives me a firewall, do I need another one?

The Windows Firewall (on Windows XP Service Pack 2 and Vista) only examines inbound communications coming into your computer from the internet. If your computer becomes infected (e.g. if you install some free software that turns out to have a hidden nasty) then your outbound communication to other computers on the internet won’t be examined or filtered. This can turn your computer into a source of infection, impacting your security and internet connection. It’s also not recommended that you run more than one software firewall as this uses more processing power and can cause conflicts, so if your security software includes a firewall, turn off the Windows Firewall.

If I have a secure wireless connection do l need a firewall?

A wireless connection is another way to get onto the internet and wireless security controls who can use that connection.

If you are doing something specific (like installing new software or troubleshooting a connection problem) you may need to temporarily disable your firewall. Software firewalls may alert you that a connection has been attempted and blocked and may ask if you wish to allow that kind of connection in the future.

Firewalls provide an enhanced level of security that has now become the minimum standard to protect your computer.