| Where To Find A Good Free Antivirus..?
October 12, 2009 at 3:12 pm
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| Many people ask me where to find a good free antivirus without pay something, some of my friend here in indonesia also ask me the same question lol. Well if u need a good one then a recomended you to try this smartdav free antivirus i am using it without problem and some new virus has been already cleared by them. No need to pay something just try it and i hope this post help you. Many thanks for read this short post  lol |
| Uses of Software Utilities
October 12, 2009 at 3:00 pm
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| Software utilities are used to resolve problems, make configurations and manage programs in the operating system. There are many software utilities on the market and their functionality can range from simple activities as copying simple files from external storage devices to complex ones that manage the registry, clean junk files and modify system properties. Some of the most useful utilities are the ones that automate routine troubleshooting in systems. Some of these can be used to diagnose system configuration issues, offer recommendations and do a bunch of things. Since most of these are commercially produced, they come with easy-to-use graphic user interfaces, check boxes and the like. In most cases, when it comes to system configurations, most of the software utilities are able to offer access to registry, environmental settings and system start up options. Other utilities just provide additional capabilities to the operating system. Disk deframenters are one group of software utilities that can detect files on the hard disk that are fragmented and can thus move those fragments together to increase the overall efficiency. The purpose of any disk defragmenting software is one; to minimize head travel time and maximize transfer rate. Disk cleaners are other utilities that are used to find and remove unnecessary files that take up considerable space on the hard disk. The cleaning process involves searching and analyzing the hard drive and deletion of any files found. Some common files that are found by the disk cleaner software utilities include temporary internet files, recycle bin files, setup log files, optional windows components and files left behind from an uninstallation. This list is not exhaustive and can include a bunch of other file types. File managers are some of the most useful software utilities out there. These provide a convenient method of deleting, cataloging, copying, merging, renaming, generating and modifying data on the hard disk. Some file managers provide network connectivity and allow a user to remotely create, rename, search, delete or otherwise alter remote files using a number of methods. There are different types of file managers. Some of these include file-list mangers, directory editors, navigational file managers and orthodox file managers. A good example of a navigational file manger is the Windows Explorer. In Mac OS X, the Finder is an example of a navigational file manger. Other software utilities include system profilers, anti-virus utilities, cryptographic utilities, network mangers and text editors. These software applications make management and configurations easy for an average computer user. |
| Where is Software Development failing?
October 12, 2009 at 3:00 pm
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| With the recession continuing to take a heavy toll on everybody and everything, the software product development teams seem to have taken some measures to cope with it. However, the question that comes up is; have these measures compromised the quality of software and in some cases, have they contributed to software product development failures all together? Human errors that are avoidable seem to have been one of the consequences of these measures. Because most development teams do not know what to build, it fails to meet the people's needs, the time and the resources to do research has seemed unnecessary and this has resulted in unclear requirements and the eventual failure of the software. Another measure that companies have been taking is setting up overly unrealistic schedules as well as overly optimistic ones. When a schedule seems unrealistic there is the tendency to skip things or rush through the development cycle. When projects are thus compressed, there is a high chance that some thing will be overlooked or will not be given the needed attention. The cutting down of executive sponsorship and support has also meant that internal politics and budget cuts will undermine the overall project. This will of course result in sub-standard or poor products. Some software product development teams have also been forced to lay off senior higher paid developers. When senior developers and those with experience leave a project early in its lifetime, this will hurt both the project as well as the company. While this move to cut down on costs seems warranted, it has to be remembered that the future software product development teams of such companies will often be unstable. Senior and more experienced developers take with them a lot of experience that just is not available any other place leaving behind lower-paid workers with less experience. However, when you look at the time lost due to the learning curve and the mistakes of the less experienced developers, it probably negates the savings in the salaries paid. This is the price companies have to pay for making hasty, project-wrecking decisions in a poor economy. Another foolhardy cutbacks being taken in the software product development projects is skipping testing. While this is an obvious path to software failures, it seems that many companies are using this recessionary cost-saving method to keep their coding teams busy. If this trend continues, it can be expected that embarrassing outages will begin to surface. If companies take note of these project pitfalls and avoid them despite the economy downturn, we can expect to see less software project failures. |
| Make The Most Of Your Window Air Conditioner Units
October 12, 2009 at 2:59 pm
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| There are a few ways that you can stay cool in the summer. If you are lucky, you have a home that does not get too hot, or you have central air conditioning that you do not have to give much thought to. If not, you have a few more options, one of which would be window air conditioner units. You may find that a fan cools your home just fine, but these only work so well. Air conditioners for the windows are still popular and they work better than ever. However, there are a few things that you can do to get the most out of them without running up your electric bill too high. Before thinking about the best ways to run your window air conditioning units, you should understand how they work. You may think that they pull air in from outside, cool it, and then push it inside. This is is only partially right. More precisely, they take the air from the room, ‘condition’ it, and then push that air back into the room. It is almost like sucking the hot out of the air. The Freon in the unit helps to cool the cleaned air out so that it comes out much cooler than when it went in. One of the biggest mistakes that people make with window air conditioner units is having it run too much and work too hard. These are usually made specifically for a particular amount of space – usually this space is in square feet. If you try to run them for bigger areas, they are going to work too hard to cool that space and they are not going to be effective no matter how hard they work. Keep the room closed off while the air conditioner is working and then turn it off when you are not going to use that room for a while. That saves money and also prolongs the life of your air conditioner. All window air conditioner units work in the same basic way, but they are all built slightly different. Some are older but still work, and some are so new they do not have the same parts as their predecessors. If your air conditioning unit has filters, you have to pay attention to these. Most of them do, but some are harder to manage than others. Those that get stuffed up will not cool the room like they should. That means your unit will run and run, but it will not offer you much in the way of relief. Change the filters as recommended or when they seem to be clogging up. Some may even freeze over, signifying a bigger problem that you may not be able to fix on your own. You may not have to worry as much about maintenance on newer window air conditioner units, but you should keep an eye on them. Do not run them all the time, make sure the room is small enough to be cooled by the unit you bought, and give them a once over a few times a year to be sure they are working well and there are no electrical problems that may cause a fire. If you want to cool a bigger space, you have to close off one area and then buy another unit. If you try too big of an area, even the best window air conditioner units will burn out early. |
| A brief introduction to network infrastructure, the history and modern applications
October 12, 2009 at 2:54 pm
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| A "net" may be used to signify a pattern, such as the criss-crossing pattern of the net a fisherman uses to scoop up fish, or the wires that you see running between telephone poles. "Work" implies that some energy has been used or is used to establish the pattern. "Infra" means under or below, and "structure" is something composed of interrelated parts. The infrastructure of a network, then, is the underlying interrelated parts that form a constructed net pattern. People network. Telephones network. Computers network. In each instance, we mean these communicate, that is, send and receive data or messages in a specified way over some medium that is able to carry the data or messages reliably from sender to receiver. If the communication is one way only, from sender to receiver, we call this communication type simplex. If the communication is two way, with both parties of the communication being able to send and receive messages, we call it duplex communication. Whether simplex or duplex, the hardware, software, protocols and methods people, telephones, computers, or other classes use to communicate messages between each other is the communication’s network infrastructure. Electronic communications originated with the invention of the telephone. In the case of telephones, two telephones are linked through telephone wires. The link is initially virtual, not direct. The telephone number used to make the call is used by a series of switches, between segments of wire, to create a route for the two telephones to communicate over. The telephone itself has a microphone, that converts the sound waves made when you speak, into electronic pulses that travel over a wire. The telephone also has a speaker that receives electronic pulses and converts these back to sound waves. Two telephones, wires and switches, as well as telephone poles, connectors, and other parts constitute the telephone system’s network infrastructure. Hardware refers to something material and designed to perform a function. Hardware requirements are only part of what we need for a telephone system. The telephone systems use a protocol for making a connection. First, the receiving telephone must ring before a connection can be established. Then, the person receiving the call must answer the call by picking up the telephone receiver, or perform some other action to signal the system that the person at the other end has answered. Software is not required for a telephone network. The switches the system uses does some decision making, but this logic is hardwired. The telephone system uses other methods and procedures to monitor the network lines. All of these, the wires, switches, protocols and monitoring sub-systems constitute the telephone system’s network infrastructure. Just as people may communicate over the telephone network infrastructure, computers may also communicate with each other over the telephone network. The telephone network infrastructure is not the only type of network infrastructure computers use to communicate. Local area networks, (LANs), connect computers to each other within a specific locale, such as an office building, with cables that may be attached from one machine to another, or attached to a switch or router that determines which attached computer, or peripheral, such as a printer or fax, is supposed to receive the message. The messages computers send to each other are sent in packets. Commonly accepted standards specify how a message is to be packed. The header of a packet normally contains the address of the computer to which the message is directed. LANs may also be connected to each other with switches or routers, or by high-speed backbone cables. Each LAN of a network of LANs is a sub-net. A LAN may also feed into a switch or router that is connected to the telephone network infrastructure. Messages may be passed from one LAN over the telephone system to another LAN. This is also called a wide area network (WAN). An intermediate network between a WAN and a LAN is called a Metropolitan Area Network. Typically, cables, infrared communication devices or radio transmitting and receiving devices connect a small community, such as a group of office building. The cabling, connectors, switches, hubs, nodes and other physical devices are part of the network infrastructure, as are the protocols used for messaging, connecting, securing and monitoring the network. The network infrastructure includes the manner in which the computers and devices are connected, the resource sharing models employed (sneaker, peer to peer, client/server), the topology used (bus, ring, star, mesh), the networks used (public, private) and even the support and administrative personnel. All these and others not mentioned, comprise the network infrastructure, the structure that enables computers and their peripherals to communicate. |
| How to buy a used car
October 12, 2009 at 2:53 pm
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| When planning to purchase a car, you definitely want to get the cheapest deal at the highest quality. In fact, when buying used cars, it is possible to get a car for half its original price or even for much less. The problem usually comes with the likelihood of the used car not being in good condition. Since a car's value decreases with age, use and mileage, it is understandable to be concerned and a bit apprehensive when the deal seems to be too good. So what are some things to look at before buying used cars to avoid a rip off? The first thing to consider is your pocket. How much are you willing to spend on a car? To get a good idea of the cars that fall within your price range, take a look at newspaper ads. Banks and loan institutions will usually have monthly listing guides of used cars. Consult these and see how far your wallet can stretch. Remember also that buying used cars will come with unexpected repairs as well as taxes, insurance and registration fees. Be sure to factor in these extra expenses before buying. When buying used cars, it is best to avoid cars that have extremely high mileage. This is because as the car ages, it will need more repairs. The repairs that go into a used do not necessarily add to the value of the car. Ordinarily, it is less expensive to go for a used car in good shape than to take a bad car and fix it up, even if its price is much lower. So how do you find out if a used car is good enough to buy? Check the car thoroughly before buying. Look at the interior and exterior of the car. Have they been maintained well? What do the maintenance records show about the car? If they do not exist, likely the car has been neglected. Before buying used cars, be sure to take a test drive. Drive in a variety of terrains and take note of the engine. Are there noises in the engine? Is there enough power for a good acceleration? If the owner of the car says that the engine just needs a tune-up, be wary. Tune-ups are a regular part of the car maintenance and should have been done often. What about the transmission? Does it shift smoothly? Are there grinding noises in the gears? All these are warning signs of a worn out engine. Other things to look at include the engine oil, the automatic transmission fluid and the brakes and suspension. Be sure to have a professional mechanic take a look at the car. While this may cost you a few extra dollars, it can save you hundreds of dollars of needed repairs in the future. | | | 
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