Computer club discussion

Cheap refurbished computers are good value and can be the answer to many peopleâ??s pricing issues. So how do you know what to look for? Well read on for our guide to buying cheap refurbished computers.

When buying cheap refurbished computers you should think about a few things before hand.

â?¢ Large hard drive. If you have many different files, music and photos then you need a large hard drive to store them all. A large hard drive is also helpful if you have many different applications on your computer.
â?¢ High speed processor. In order to let your computer work quick enough you should have a high speed processor.
â?¢ Price. Of course one of the most important things about buying a computer is price. Refurbished computers are a lot cheaper than standard computers, even brand names.
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Refurbished computers have always had quite a bad reputation because people believe that they are second hand. This is a myth and cheap refurbished computers tend to be excess stock from large brand names. Companies such as Dell and Hewlett Packard sell their old stock onto other web stores that test these computers, make sure that they are working to their full capacity and then sell them on. Cheap refurbished computers are not faulty as they are checked several times before being sold. They are also generally brand products. They are not old computers but merely computers that have been replaced by newer models.

If youâ??re not sure what to expect when buying refurbished cheap computers then why not take a look at this example from www.europc.co.uk and see what you can get for your money.

This Dell studio slim is a fantastic price at just £500. It comes with Windows Vista as the operating system, an Intel core 2 quad processor, an astonishing 4GB of RAM, a 64GB hard drive capacity, 6 USB ports and a 2.33GHz processor speed. This computer is completely refurbished making it not just great value but personally checked by a qualified technician too.

If laptops are more your thing then why not check out this deal? A Toshiba Laptop will cost you only £239. This laptop consists of Windows Vista home operating system, a Celeron T1600 processor at 1.66GHz speed, a large 160GB hard drive, 3 USB ports and graphics card. This laptop is also refurbished so you know that everything on it is guaranteed to work as soon as you get it out of the box.

If you are looking for cheap refurbished computers then why not check out www.europc.co.uk and see what fantastic refurbished deals they have.

The computer network is perhaps the most important system that is running within your company. Your network powers almost everything that the computers do – from daily essential tasks like email to surfing on the Internet, sharing documents, sharing printers, etc. So if your network happens to be down, the entire organization is greatly inconvenienced. Lots of man hours would be wasted. And if the network is down repeatedly, productivity will decline.

There are many reasons that may cause a network to be down. We are talking about network security issues here. Minor network security breaches involve attack on the personal workstation. For example, a workstation may be infested with viruses or spyware. Viruses and spyware are types are software that operate mostly in the background. They are usually installed on the computers without the permission of the user and perform malicious operations such as hijacking browsers or wiping out hard disk drive data.

More serious network security breaches involve real time attack on the servers. As the servers power many important functions of the network (e.g. sending or receiving email, or storing confidential company data), the consequences are disastrous if servers have been compromised. The general term for server attacks is known as “intrusion”.

Earlier, we have briefly discussed how a personal workstation can be compromised by viruses or spyware. This is also a form of intrusion on the personal computer. This form of intrusion is usually passive. In other words, it may involve some action from the user in order for the software to be installed. For instance, the user may be browsing malicious websites, or an individual may have installed a virus accidentally, thinking that it was an innocent game.

Another form of active, which is an active form of attack, involves sending packets of data to a server until the server slows down to a crawl, thus rendering it useless. This is also known as denial of service (DDOS) attacks. The servers won’t be able to process requests sent to them until these malicious packets of data are somehow blocked. Otherwise, the whole network continues to be malfunctioning.

These are all various ways that a network can be compromised. From innocent little games to aggressive data packet attacks. Fortunately, there are network security solutions available that will help safeguard the network.

There are many different levels of network security. For security engineers, the challenge is always to decide on adequate protection without inconveniencing the users. Users may be inconvenienced when security hardware or software starts to interfere with other applications. For instance, the newly installed Firewall may be preventing some software from accessing the Internet.

A comprehensive network security program involves hardware and software security, as well as a sound educational program for the users. Users must be trained so that they know what to do. A firewall can only be used to block so many websites. Ultimately, it’s up to the users to exercise discretion when surfing dubious websites.

Always consult network security professionals to explore various options before implementing a network security plan.

If you have a PC, then you have most likely suffered from computer problems. Most people have accepted that there PC will eventually crash due to a virus or some massive error. However this is a myth. Your PC is built to last more than a decade. However you must keep well tuned for it to make its third birthday. Nevertheless, most people would rather buy a shiny new PC rather than spend an hour trying to fix computer problems on there 2 year lap top or desktop. After another two year after their purchase lack of maintenance will cause their new PC to lose its performance speed. Whats next you guess, $3000 Windows Vista Ready PC. This is known as the consumer vicious cycle.

Why have does your computer have problems?

Well, the biggest problem that your computer has is its owner. More than 80% of computer problems stem from neglecting to perform simple maintenance task such as cleaning your registry, emptying your cache files and updating software regularly. If these task a perform diligently. You would be reading this article from a five year old machine running on Windows 98 operating system. So, lets take a look at the top five computer problems and how to avoid them.

1. Computer has performance has slowed.

This is the number one complaint from most users. There are several reason why this has occurred. However, most can attributed to lack of maintenance. Fragmented data, corrupted registry, spyware, and load of unnecessary programs and services running can all eat away at your PC speed and performance. Manage your programs and cleaning your registry would easily award you a 30% gain in performance speed. Check out The 4 ways to speed up my computer

2. Lockup, freezes, and blue screens of death.

This is a another common computer problem. However, this particular issue is a bit more serious; therefore, it needs a few diagnostic steps. In most cases this problems are caused by spyware. To avoid this problem update your anti-spyware program daily. Having the most up to date signatures will help you avoid having a serious spyware problem. However, if you have concluded that your PC is spyware free. You should update your hardware drivers. The computer cannot communicate with various hardware components without an up to date driver. When it cannot find a driver, the CPU locks up. Also, increasing your virtual memory can also help to avoid freezes. Virtual Memory will allow to you get more use out your computer’s RAM. Check the resource box for more info on the subject.

3. The computer spontaneously reboots or turn itself off.

This computer problem can be usually attributed to a hardware issue. Usually its the power supply is dying or in most cases a dirty or defective cooling fan. The computer trying to cool itself by automatically switching off. So, if you feel a bit of extra heat coming out the computer. Clean the fan and make sure it running properly. If your fan is functional, check your power supply. Also, you will be surprised how many people fail to make sure the cables are attached tightly. This be the cause of this particular computer problem.

4. Strange noises and vibrations.

This is almost totally a hardware issue. You computer is made up of thousands of parts. Its not unheard of that one of them can become unhinged. Overheating can cause expansion of wires and melt some sensitive. High pitch noises such as squealing or whining sounds can be cause electronic components. Whatever the reason, you conduct a small investigation. Remove the case and run the computer to discover the origin of the computer problem. If its not a simple matter such as a loose wire or fan issue, it may be time to call a computer tech.

5. Your home page, default search engine, or web browser has changed itself.

This is also known as “high-jacking”. Spyware has been installed on your computer via social networking or from email link. This action has allowed spyware to install a java script into your web browser. The spyware then sends a message to your browser to change your user settings. For example change your home page to another web page.

As you have discovered from reading the article, the most common computer problems can be handle quite easily by simple maintenance of your PC. Net time you are suffering from computer problems. Take a few minutes to run some diagnostic test before rushing out to computer technical center claiming your PC is broken. When all you need to do was just make sure it was plugged in.