Computers

Various Information about computers ranging from WI-FI performance to Computer Maintenance.

Linksys WRT54GL 802.11b/g Wireless Broadband Router up to 54Mbps/ Compatible with Open Source DD-WRT (not pre-load)There are times when you do not get the Wi-Fi performance you need or want. There are several things that could be causing the problem and below are some helpful tips on how to resolve any issues and improve your Wi-Fi performance.

Interference

When you notice that your connection is suddenly dropped and there seems to be no real explanation, look around the home for frequency interferences. Many times it is a microwave or a cordless phone that is causing the issues and by changing a frequency on your phone you may see a more solid connection.

LINKSYS WMP54G 32bit PCI2.2 Wireless-G Adapter

Updated Router

You may experience a weak or slowing signal when you are using an older router. You might need to look into purchasing a newer one to get the strongest signal. If you still have issues with performance in certain areas of the home that are not near the router, get a booster to enhance the strength and give a more consistent signal throughout the home.

Drivers

Always check for updated drivers and keep your system running smoothly. Many times a weak signal is due to outdated drivers and with a simple visit to the manufacturer’s page you can begin enjoying a faster, more reliable internet.

Security

If you have an open connection then anyone who is in the area can use your bandwidth. When you set up your wireless network be sure to create a password to protect those around you from slowing you down. If you live in an apartment building and have an open connection, everyone in the building can ping off your signal and they save on internet bills and you lose on signal strength.

If you have issues that cannot be resolved with the above tips you might need to replace your Wi-Fi card.

powersupplyOne of the most common mistakes people make when selecting a power supply for their computer is thinking it is not an important part of their system. The power supply is the entire energy source for your system, so it should not be neglected and treated as an important part of your computer.

There are three things you should consider when buying a power supply for your computer:

Form Factor

The majority of power supplies are ATX, but you have to ensure that your case is not another form factor or a mini ATX, otherwise the power supply will not fit properly.

Power Rating

You have to think about what you are using the computer for. The more you expect out of it, such as high tech gaming or other resource destroying programs, the more power you should have. If you are gaming, you should consider a 600-650 watt power supply.

MTBF (Mean Time Between Failure)

This will show you the lifespan of the power supply. It will represent the hours that the power supply will perform before it is destined to fail. The majority of power supplies on the market will have a MTBF lifespan of 100,000 hours or more.

So, take these tips and ensure that you make the right choice when you select the power supply for your system. You should also consider things like short circuit protection, low noise and load current. You’re CPU and your video card may have requirements for the amount of power they need to help you make that decision. If you have trouble deciding on which one you think is best, always go with a larger wattage with a longer MTBF lifespan. Of course check the warranty on the power supply as well before you purchase one.

Computers apart from a physical entity have also been synchronized into the daily lives of people in several forms. Categorically a computer system can be divided into 3 main forms that are being used widely. They are the desktop, laptop and palmtop. However, part from these three categories of computer system, it has also been divide into different types depending on their use and are hence are divided basically in an uncategorized way. There has been automation in almost every sphere of human life where these uncategorized computers play a very important role. The un-categorized computers are:-

Personal Computers – Also widely known as PC these are the computers that are basically for the household and are mostly used by the people who like to work from home or is the type of computer that is completely used from the home. The configuration of a personal computer basically depends on the requirement of the user and the type of work they need to extract from the computer system.

Workstation Computers – these types of computer systems are widely used by the engineers and several technicians. The main difference between the PC and the workstation computers are the computation speed of the CPU which is enhanced by much advanced configuration as compared to the PC. The processors of these computers are designed to meet the graphics demand and designing purpose as desired by the user. These computers can handle voluminous data efficiently that is required as per the requirement.

Supercomputers – These computers are mainly used for computational purposes and are quite advanced in use as well as in the configuration as compared to the personal computers and the workstation computers. The configuration is mainly advanced in terms of its RAM and memory storage as well as the frequency of operation and the use is for tedious mathematical calculations etc.

Mainframe Computers – this category of computers is of standard configuration but is used on much wider scale by educational institutions and such large domains for as a server computer that serves the requests to around 500-600 computers.

Apart from these categories of computers based on the use, computer systems are also divided on the basis of their electronic nature. They are:-

Analog Computers – As quite obvious from the name, these computers are based on analog techniques and uses analog signals. They proceed after measuring the changes that are physical in nature such as pressure; temperature etc. and accordingly the pre decided arithmetic and logical operations are performed.

Digital Computers – They are the computers that have very high programming speed. This is because they operate on two digital states i.e. high and low which gives them an edge as compared to the analog computers.

Hybrid Computers – A mixture of both analog and digital computers yields the hybrid computers. They have operations of which some resemble to the operations of digital computer techniques and some of the analog computer techniques. In short, it is a combination of the main points of the analog and digital computers.