Category: Computer & Multimedia

How Do Viruses And Worms Affect Your Computer

Also, unlike viruses that most commonly infect an individual computer, the worms usually attack a computer network. A computer network functions by using a collection of servers and routers. This is what the internet is comprised of. A server is like a PC but has more speed and storage and a router is a server with specialized functions, it directs traffic through the network.
PC Security – Worm Viruses, Deadliest of All

A virus attacks the unit used to run programs on the computer called the central processing unit or CPU for short. It does this by running programs and being constantly busy, so that none of the functions you select can be opened. Similarly, this is how a worm functions on a network. The routers rely on memory and processing time (similar to the CPU functions). These are attacked and as a result the network drastically slows down.

Worms carry payloads which are comprised of other types of malware, backdoor installations or spyware. Spyware is a monitoring program that can keep an eye on activities on your computer and backdoor programs set up hidden access points used by hackers to steal your information or send spam.

My Doom sent out at the beginning of 2004, was the fastest spreading worm to date. The worm came in the form of an email with the message “andy; I’m just doing my job, nothing personal, sorry.”

Although the culprit was never found, its intended victim is thought to have been a software company called Santa Cruz Operation or SCO for short.

When a person opened this email, the worm was programmed to overwhelm SCO’s website with traffic. The worm spread through the internet and caused a massive slow down.

For the individual computer, the worm’s payload is more serious because it allows ports to be opened on the computer where hackers have access to steal or delete information. In addition, a payload may come with a program to attack your antivirus software and disable it.

De worming

Using firewalls will help protect your computer. Firewalls reduce traffic and hide your computer. In this state, you are less likely to be attacked by worms spread over the network.

Be careful not to open suspicious emails and if you don’t know the person or get and unexpected email don’t open it. If you find your computer is slow and reboots by itself or the internet is sluggish, you may have been infected. Try running antivirus software to check it out. If that doesn’t work, try to manually removing the virus. Information as to how this is done can be found on the internet.

Low Level Pc Poisons – Computer Fumes Dust And Gases

Copyright 2006 Michael Madigan

Did you know computer equipment continually gives out small amounts of different gases and fine dusts? Some people are highly sensitive to these.

Plastic PC components are one source, as most plastics are unstable and break down naturally over time, especially when exposed to ultraviolet light and sunlight. (That’s the reason why they turn yellow and get brittle.)

Another source comes from vapour produced from traces of manufacturing materials slowly evaporating.

The gases and fumes given off are called ‘out-gassing’ and only occur in small amounts. But when the equipment is new, the out-gassing is greater and noticeable even to people who aren’t particularly sensitive.

This is similar to the smell that we get when we first get into a new car – out-gassing from the vinyl, plastic carpet and hard plastic interiors, as well as the wiring.

A new computer has a similar smell. So to some extent you can avoid outgassing, at least of ‘new’ volatile components, by buying a good quality ‘used’ PC.

Other office materials, particuliarly new furnishings, may also outgas – chipboard contains phenolic resins, which release trace amounts of formaldehyde; also carpeting (especially foam padding), paint and fabrics give off obnoxious chemicals when new.

People who have been sensitized (by previous exposure) may react badly to even very tiny amounts of these gases, by getting headaches, dizziness, and respiratory problems. The problems may persist even when the original cause is reduced, or disappears. In such a case it’s wise to seek qualified medical advice.

Casings may also be contaminated by fine brominated phenolic dust originally put on as a fire retardant, which can be blown out by fans, circulation or movement.

The best solutions are :-

– Initally, to run any new equipment in an empty well ventilated room to allow most of the outgassing to occur before use.

– Always work in a room with good ventilation and avoid continual high room temperaturesoutgassing will increase as the temperature rises.

Laser printers emit a lot of toner dust, which contains carbon and solvents, and quite a few people are sensitive to it. You can smell it when the printer is on, and especially on freshly printed-paper. You may notice wheeziness, coughing, and sneezing.

People working at copy centers and service bureaus often suffer from headaches, and toner dust is the main suspect. NCR paper (‘carbonless’ paper) can also cause wheeziness.

Good ventilation, drawing air away from the operator and filtering out particles, will help reduce these reactions, but effective ventilation in a commercial or home office is sometimes hard to achieve, especially in sealed buildings.

You can try going outdoors and breathing deeply for 10 minutes every hour or so. Open doors, maybe have a fan on., and avoid routine (multiple) photocopying every single document.

Think long term. Removing even mild poisons from your environment is yet another way to keep safe, stay fitter at the PC and enjoy a healthy computing career!

How To Scrap A Computer

Getting cash for computer scrap is one of the easiest ways to make money. Whats the use of leaving your old desktop in the corner to collect dust, when you can scrap it and make some extra cash? Since the inception of computer scrap recycling programs, and programs that offer cash for other types of electronic scrap, thousands of eco-enthusiasts have been praising the cash for electronic scrap industry and recommending the services to friends.

But what many do not know is that by paying attention to the following steps, hints, and tricks, you can prepare your computer to get scrapped in a way that will guarantee more cash in your pocket. When scrapping computers, volume is a crucial and deciding factor. Before attempting to sell your computer scrap on E-bay and other vendor sites, having at least 5-10 pounds of computer scrap would be in your best interest. That way, these vendors will be more interested in your items and pay you a greater amount.

Before scrapping a computer, be sure to evaluate the technology and make sure its actually worthless. Usually, working parts within a computer will be worth more than what youll get when selling your computer scrap to a vendor. Everything inside a computer is worth a different amount, because they are each composed of different precious metals. The main components of a computer are the case, disk drives, hard drives, motherboards, CPUs, RAM, PCIs, and power supply. When scrapping a computer, it is important that you can recognize and remove these components without causing damage to the system.

Remember, quantity is what matters, so amass as many parts of different desktops and laptops as you can before separating the computer scrap into the following categories: 1) Gold Fingers, 2) PCI boards and motherboards, 3) CPUs, and 4) RAM. Each of these categories pays a bit differently, which is why it is important to understand the classification process and criteria qualifications of these categories. By visiting e-scrap websites, doing research, and educating yourself about the technology found within your computers, you will be well on your way to making lots of cash for your electronic scrap.

While hard drives, computer cases, and disk drives can easily be sold to scrap yards, the other components of a computer should strictly be sold online. Online vendors will usually pay more, but with this convenience and larger payout comes a larger risk. So do your research, read reviews, and protect yourself from greedy online vendors whose main priority is ripping you off.

Benefits Of Computer-assisted Instruction

Computer-based instruction and educational activities have been a part of high school level curricula for some time, but the primary grades have adopted these techniques a little slower. However, the adoption of technological learning activities will increase sharply over the next few years. Experts disagree on the single most important driving factor, but there are clearly a number of distinct advantages to computer-based learning activities over more traditional educational activities. Here are five of the most important.

The pace of instruction concerns everyone involved in the development of educational activities. Parents often worry about their child being either left behind or held back by the performance of the other students in the classroom. Teachers using traditional learning activities have trouble progressing some of the students in a classroom if not all are ready. Computer-based educational activities assist here by allowing each student to learn at his or her own pace. One student can move onto more demanding educational activities before the rest of the class without disrupting anyone else’s learning. Simultaneously, another student can repeat certain learning activities as often as advisable.

Computer-based instruction can also enhance the relevance and quality of educational activities. This will often register as a prime concern for parents and students. Collaborating with an appropriate site for learning activities will provide the school district or classroom teacher with a wealth of choices. With educational activities organized by grade level and covering a vast array of subject material, a valuable partnering site will empower the instructor with the ability to choose learning activities to target the students’ needs best. Further, if the site includes authoring tools, the teacher or parent may create new educational activities to address any under-served curricular areas. Additionally, a user community, if offered, may enable the sharing of learning activities far more easily than before. Providing instruction on the computer then helps foster increased relevance for the lessons involved.

To compete in today’s society, students need to achieve a much higher level of comfort and ease with technological tools. Today’s primary age students will find computers and technology dominating their workplaces to a greater degree than their parents or perhaps even their older siblings. Another advantage of learning activities on computers for our children then is that it teaches on multiple levels. Our students not only master the curriculum materials embedded in the learning activities, but also become more adept at using computers, which is also of value to them.

Finally, computer-based instruction can help lower the cost of our kids’ educational activities. Instead of buying multiple copies of a textbook for each subject matter area, schools can invest in computers and software to attend to all students. Many sites for learning activities can be accessed for a modest monthly fee. This one fee can then address an entire classroom’s needs across many curriculum areas at once, and therefore provide an economical way to provide educational activities. For these reasons, classrooms will feature computer-based instruction going forward.

Multimedia Led Projector With Built-in Dvd Player-usb, Hdmi, Vga, Av, Atsc

Now days, more and more home like to watch movie in their house with a projector, so you will never go to theater to watch a file, just store the movies in this player, then you can watch films. Also, most of offices are using this device, to show some materials to workmates. So Multimedia LED projectors will become more and more popular in near further.
Today, we will introduce zipgoods.com a new multimedia LED projector, which built in a DVD player in it. With this device, you will have a projector for enjoying movies and TV.
This multimedia led projector can provide clear images, The LED light source delivers a wider color range and deeper color saturation than traditional lamps and provides clear, crisp images for any type of media from videos and TV. Although it is a small sized device, but you can enjoy splendor movies with it.
We can say that this multimedia composite all multimedia in it. It built in a DVD player in body, besides this, it also can be connected to your computer, home video system, or receive TV with its built-in ATSC tuner. It is not only can be used in your home, you can use it in your offices, conference rooms, classrooms, living rooms, etc. so it is widely used in our daily life.
You may worry about its quality of LED lamps, we will say that you can not worry about this. The LED light source consumes less energy than traditional lamp-based projectors and is mercury free. It offers up to 50,000 hours lamp life, which means that it can last for more than 30 years (4 hours a day). Furthermore, LEDs stay cool, you can turn off the projector and pack it up without having to wait for the lamp to cool down first. After you do a demonstration in your meeting room, you can collect it immediately, and get back to your work soon.
Besides its good functions, this multimedia LED projector has a nice design, with its sexy body, you will love it at first glance. If you put it on in your home or your bed room, it will be considered as a artwork.
So, if you want to enjoy clear movies now, get this multimedia LED projector soon.

Three Skype Phone-A Futuristic Multimedia Gadget

Three’s patent product, the Skype phone has launched in the market with full of innovative features to pacify the tech savvy users. The Skype phone from Three is light weight, slim and has a decent screen. The user interface is easy to use. Being on the Three network means the phone is a 3G device and also packs a 2-megapixel camera, mp3 player, streams video and comes in black or white, with blue or pink trim.

The Three is the master in providing better network and connectivity to the users of the Skype phone which is packed with Bluetooth, Infrared and USB to connect it wirelessly; GPRS and EDGE to transfer data and files at high speed and WAP and XHTML to browse Internet. Definitely, the services obtained from Skype Mobile Phones have imposed higher service taxes in comparison to the general one.

Three network helps you out of the burden of hefty phone bills with the support of the mobile phone deals including Pay As You Go, Pay Monthly Mobile Phone, Contract Mobile Phone and so on. The users of Three Skype Phone can enter in a contract with Three for a period of 12-18 months to access the deals of mobile phone. During the period of contract; Three offers numerous offerings and schemes to the users of Skype mobile phones. The offerings may include 12-18 months free line rental; free mobile phone insurance; free mobile phone accessories; free upgrade of mobile phone; free roaming facility; reduction in downloading charges; reduction in peak hour call charges and many more. In addition, Three can provide free Skype handset as a part of special offering on festive occasion.

So enjoy the functionality of Skype phone on Three network and learn the art of downloading and transferring data and files, accessing to internet and send multimedia messages to other compatible devices in less time.

Torie Wilson is associated with Three Mobile Phones UK. He holds a bachelor’s degree in electronics and communication from MiddleSex University. To know more about Skype Mobile Phones, Three Mobile Phone Deal, Three Skype Phone, Three, Pay As You Go please visit

How To Fix Computer Freeze Problem

Computer freeze is a common PC problem. Your PC was working absolutely fine, but suddenly it freezes up. You are at a loss. How to fix the problem? Go through this article and find the reasons why your computer freezes up and how to fix the problem.

Are you thinking why a computer freezes up? There are many reasons for which this problem occurs. Your PC was working fine and after installing a program the problem starts then it is due to that software application. In many cases, viruses also cause the problem. If the computer overheats then it could cause the PC freeze problem. Sometimes, random lockups occur due to the computer memory.

Whatever the reason behind your computer freeze is, you need to get it fixed. You have two options to perform this task. Firstly, there are many computer repair companies that offer tech support to the computer users for resolving PC freezing problem. Or you can try resolving the problem on your own. Given below are some useful tips that you can employ to resolve the issue.

If the problem starts after installing a certain program, better uninstall the newly installed application. The problem should get fixed. If you dont know how to uninstall the program, go to Control Panel and then click Add Remove Programs, select the particular program and uninstall it.

Your computer was working find and if suddenly lockups occur, then it might be an application that caused the issue. Just press Control-Shift-Esc to fix a stalled computer. Once you press these buttons together, it will bring up Windows Task Manager. Here you will find the list of the programs that are running on your PC. The program which is not working, its status column will show it as Not Responding. Select the program and click End Task. This will resolve the issue instantly.

Sometimes, computer freezes occur if you run too many applications at the same time and the computer does not have much resource to run them. In this case, you need to limit the number of program and only run two or three programs at one go.

Does your computer freeze while visiting some certain websites? If yes, then either you have to refrain from visiting those websites or you need to use a different browser. If you find that the web browser is freezing continually, try to uninstall and reinstall it. You can also use another web browser.

You should also check for viruses or spyware. Most of the times computer freezes due to virus and spyware attack. To fix it, you need to run a spyware and antivirus program. It is also suggested to update Windows and install latest patches.

The Importance Of Computer Literacy In The Workforce

Computers are powerful machines that the world has ever known. Its power goes further since computers are not just for scientists or for engineers anymore. The computer systems and programs have reached a certain level of power that every person who is computer literate can acquire. Hence, computer literacy has become an essential part of developing a person’s individuality. Though sometimes you can not identify people who are computer literate, you know that they are just everywhere.

Computer Literacy and its Influence in the Workforce

To test a person’s level of being a technology-savvy is an imperative to many organizations and companies. In fact, computer literacy has become a fact of life since it can be attributed to a person’s education, lifestyle, and work.

Therefore, in order to advance to their career, people spend most of their time acquiring computer knowledge and education to become computer literate eventually. This is true because computer skills are essential skills that business people find from their employees or from their work force.

With the influence and essentiality of becoming a computer literate, it seems that living without computer skills would be unimaginable already. People rely too much on what people can do if they are computer literate. And they attribute the success of a particular business with the workforce that is computer literate.

The Benefits of Computer Literacy

1. Apparently, computer literacy in the work force increases business productivity. This is why, to make yourself marketable, you should at least have the basic skills in conducting jobs using computers such as reports, documentation, and more.

2. Computer literacy develops valuable workers especially if you focus to higher computer skills such as programming, hardware maintenance, database management, network administration, program development and many more related skills.

3. Computer literacy opens more opportunities of greater access to resources. If your company administers a work force that has a high computer literacy your company is expose to more incredible opportunities for your business.

4. Computer literacy in the workforce also means you acquire greater control of your assets. Your work force knows what they are doing and so you can employ more business operations and business processes that use more advanced technologies courtesy of your highly computer literate workforce.

If your company or organization is composed of computer literate employees or other computer professionals you have a strong workforce and such is really a powerful advantage that you can use to further advance the significance of your business in a world dominated with formidable organizations.

Computer Safety Rules

Do computers interest you? Have you ever just had the urge to open one’s case and mess around with it? This is natural as they are very intriguing machines, and they are all around us. Sometimes it is hard to get through a full day without using a computer at some point in the day. But if you are dealing with computer hardware, precaution is necessary in
order to keep yourself and your computer’s components safe. There are some procedures that are recommended when removing and installing parts. Just like any other machine, there are always dangers when working with one. Here is a list of some computer safety rules to keep in mind.

1) Wear an anti-static wrist strap when handling a computer’s internal parts. Snap it around your wrist and connect the clip to a metal area of the computer case. This grounds you so that harmful electricity will not transfer between your hand and the parts you touch. Even fairly small amounts of electricity can cause costly damages to your machine.

2)Turn off and unplug the computer before working on it. This may be obvious to some, however, it is very important. Not only could you damage the components, but you could also injure yourself. So turn it off, unplug it, and then push the on button to allow any stored electricity to dissipate.

3)Use anti-static mats. Anti-static mats help prevent electrical current transfer from the floor(or other surface) to the computer. This is especially important if your computer is on a carpet. So just put the anti-static mat on the surface you are going to work on your computer and place the computer on top.

4) Clean your computer on a regular basis. Dust builds up on computer hardware and can cause the components to retain heat while they run. Over time, this can overheat the parts and cause them to malfunction or breakdown altogether. So it would be wise to dust your computer’s interior on a regular basis, being careful not to get any liquid on or touch any internal components too much. Just remember, if you are vacuuming out your computer, do not use any vacuum that would create an electrostatic charge, as this could damage the components. There are tool made specifically for cleaning electronics.

5) Also, make sure you never take power supplies apart. You really do not want to deal with them as they are the most dangerous part in your system. This list can and should be added to. Though it is a good start, in no way is it all-inclusive. You can never be too cautious when working with electronics. And unless you are an experienced user, you may want to hire a professional to install and maintain your computer’s components. But if you do decide to work on your computer, make sure to always be
cautious and safe. The potential of hurting yourself or damaging your computer is just not worth being lackadaisical about safety.

Why Computer Skills Are Required For Jobs In Banking Sector

Computer occupies an important place in many of the industries and they employ computer skilled personnel to carry out their jobs efficiently and effectively. This trend is found not only in companies but also in growing banking sector. The banks which provide a plenty of customer services like corporate banking, financial assistance, savings, and investment, find it easier to computerize these services. Internet banking is considered as a boon for all busy people, which makes it easy to transfer and receive money quickly. It also gives the exact information of the amount in the bank accounts.

Importance of computer knowledge in banks:

As the computers are dominating the industrial world completely, it is quite natural that banks also insist their employees must have basic knowledge in computer. This makes the fresher easily understand their jobs which are performed on the computer. Computer knowledge makes it easy for the fresher to get training for probationary officer posts and for clerical posts. In other words, the candidates can go for a computer course in a reputed institute for 6 months to gain more knowledge in computer and improve their chances of being hired in banks. Many banks have started to set this eligibility criterion to stress this point. Still some candidates may question whether computer skill is mandatory to join in banks. The answer is it is necessary as most of the banks are fully computerized and they have adopted the core banking.

Most of the private and public sector banks find the usage of computer is so essential to network between their branches and to provide faster and effective service. Hence, as most of the banks are moving towards the core banking, it is necessary that the candidates who are applying for banking jobs must have knowledge in DOS, internet, e-mail and MSOffice. It is very true that a clerk should know all the basics about using computer. This is compulsory in many cases and it is advantage for others. A probationary officer in banks must know about MSWord, MS Excel, Window operating system and they should have a sound knowledge in MS Access. Certifications in these courses are insisted in many cases. This quality proves to be essential to handle files, documents and records maintained in computer in different branches and banks effectively.

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