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Choosing Between Pentium and Celeron Computers
If you are preparing a trip to the computer store and not sure how to choose between a Pentium or Celeron CPU, there are a few small differences to take note of. First of all, the Celeron has as its core a Pentium 4 processor. Another notable difference is the decrease in cache memory that Celeron computers have when compared to Pentium computers. Overall, Pentiums will generally have higher clock and bus speeds when tested against Celeron computers.
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Micro-PCs
When it comes to notebook computers the demand for smaller models is unyielding. The smallest of the bunch for a while was a laptop with an 11 or 12-inch screen. Even those were too big for some people.
Now you can find notebooks with 4 and 7-inch screens. These are handheld notebooks, commonly referred to as micro-computers, similar in size to a PlayStation Portable or Nintendo DS. To many people’s surprise, they are fully functional laptops running the Windows Vista Home Premium.
The different models tout most of the same features, either a sliding touch screen and built-in keyboard with keys like a cell phone, or a full tablet PC. They usually run on single core Intel processors and have either standard hard drives under 100GB or solid state drives between 32 and 64GB.
Right now the two leading companies developing these micro-computers are Samsung and Sony. The Sony models also sport biometric fingerprint scanners and built-in camera and microphone, while Samsung added A/V Mode. Take a look at them and judge for yourself at TigerDirect.com.
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Free Antispyware Tools
It is imperative that your new computer system not only has an antivirus program but also secure against the entry of spyware. Some antivirus programs protect against spyware, but this coverage might not be enough.
There are free spyware programs available such as Spybot or Ad-Aware which allow you to scan your computer for spyware and remove it. It is also a good idea to setup and install a firewall onto your desktop computer, to help prevent the entry of spyware, and the exit of your personal information.
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Types of RAM
Just like anything else, memory technology has come a long way over the past several years. Double-Data-Rate Synchronous Dynamic RAM (DDR SDRAM or DDR RAM for short) is similar to its predecessor but incorporates one significant difference. This type of memory transfers data twice as fast by using the clock signal differently.
Think of the clock signal like a yo-yo. In previous types of memory, data was transferred on the rising edge of the signal. DDR RAM uses the same speed for clock signal, but transfers data on the rising and falling edges, literally doubling the rate of transfer in the same amount of time. Progress does not stop there, however.
Now we come to DDR2 RAM. Like DDR RAM, this type of computer memory can transfer data on both the rising and falling edges of the clock signal. Unlike its predecessor, DDR2 RAM uses a different architecture. This design makes it run faster and increases bandwidth, allowing it to transfer more data through one chip faster. DDR2 RAM, while running more data at a faster rate, is actually using less power, thus is also more efficient.
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Cleaning a Desktop PC
Desktop PCs are not as portable as laptop computers, so they sit in the same spot gathering dust. With a weekly dusting, it is not always possible to clean the inside of the computer as well. Compressed air can be used for dust that is located inside the computer or in hard to reach places. However, this task should only be completed by someone who knows what they are doing.
You can start cleaning with compressed air by first turning off the computer and unplugging it from its power supply. Disconnect any equipment that is attached to the computer.
The next step would be to remove the computer case and ground yourself, to prevent any shocks or sparks.
Compressed air can be sprayed towards the areas with noticeable dust on them, being careful not to touch or disengage any connections.
A soft cloth can be used to wipe out the inside of the computer, as long as care is taken to work around the connections.
Afterwards, close the computer's case again, reconnect the equipment that was attached to it, turn on the electrical supply, and boot up your computer.
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Stay Cool Man
If you choose to go with an OEM processor or are not happy with the heatsink and fan that come with the processor you have chosen, you can always buy a better one. The heatsink and fan, usually bought as a combo, removes excess heat generated by the processor. This allows the CPU to perform at its best at all times.
These cooling devices are rated based on certain criteria. First is their thermal resistance. This is the ability to remove heat from the CPU. The second is airflow, meaning the ability of the fan to cool the heatsink and processor. The final measuring stick is the amount of noise generated by CPU cooling fans.
Installing the highest quality combination of these cooling devices will keep the processor and motherboard at a good temperature, avoiding overheating or crashing. If you take these steps to ensure that motherboard and CPU are in good condition, the components interfaced with them will be better off for it.
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Determine Your Brand of CD Burner
If you are not sure what brand of CD burner is installed in your computer, you can use check this in a simple way.
First, click on the “Start” button on the Windows XP desktop. Then go to “All Programs”.
From “All Programs” select “Accessories” then “System Tools”, and click on “System Information”.
The “System Information” window will open, and after clicking “Components”, select CD-ROM.
The information that shows within the window will report to you information such as the description, manufacturer, name and status of the CD drive installed on your computer
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Making it Easy to Get a New Computer
If you want a new computer but are not sure exactly what kind you need, let the experts help you out. At TigerDirect.com you can answer a few questions in customized quiz to determine what specifications will suit your needs.
Let them know what your price range is, what operating system you are most comfortable with, what size you want in a hard drive, and more. Your answers will narrow down the computers and products they offer that best match your responses and then you can pick from there.
This is a great resource for those who are not versed in computer science or construction. Finding a cheap computer you will like is easy when the field is narrowed based on your own answers. All you have to do is tell them what you like to do with the computer. If you need more help narrowing it down, give their customer service number a call and get more hands-on help in choosing the best solution for you. It can't get much easier than that.
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Buying vs. Upgrading
With the drop in prices for new desktop computers, it is a good idea to consider the benefits of buying a new computer compared to having your old computer upgraded or replaced.
If extensive works needs to be done on the motherboard or hard drive, it is better to consider buying a new computer rather than putting more money into an outdated computer.
However, if the only work that needs to be completed on an old system is upgrading the operating system and buying new memory. You will save more than buying a new computer.
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CPU Cache
The “CPU cache” is a term that is often discussed in regards to computers. Having the right amount of CPU cache will help to speed up your computer.
Basically the CPU cache functions to store data that the CPU frequently requests. By doing so, the CPU will not have to got through the more lengthy process of requesting information from the main memory and sending it through the memory bus.
CPUs use a Level 2 cache system in which data that has not been requested as often will be stored at this level. The Level 2 cache is not as fast as a Level 1 cache, but it is faster than have the computer request information through main memory.
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Choose a DVD-ROM Drive Instead
Even though it is tempting to save money by buying a laptop with only a CD-ROM, it is a good idea to spend the extra money on a DVD-ROM. The reason for this is because a DVD-ROM can play a CD, as well as a DVD. However a CD-ROM can only play a CD. If given the option, to purchase a CDRW/DVD-ROM combo, go for it! Having the ability to burn CDs and watch movies using only one drive is an added bonus!
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Finding Affordable Computer Parts
Anyone interested in buying affordable computer parts can first start by calling around to various electronics store. Another way to find affordable computer parts is to ask friends for a recommendation.
It is also possible to receive a recommendation on where to buy affordable computer parts by asking questions in computer technology forums. There many message boards or forums established where veteran computer owners will take the time to answer novice questions. This is also a good place to enquire about finding affordable computer parts.
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Data Recovery Solutions for a Hard Drive
If the information on your hard drives is not ‘backed up', then you might be faced with data recovery needs faster than you think.
When most people think of data recovery of a hard drive, they envision a scenario in which the computer will not boot up leaving you without access to your important files. However, there are instances such as viruses, in which a computer does boot, but access to the hard drive is not possible.
If this has happened to you, it is good advice for you to contact data recovery specialists in your area, by looking in the telephone directory or the Internet. They will be able to diagnose the problem and give you an estimate on what it will take to recover your files.
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The mini-barebones basics
If you don´t want your computer shaping in to something too big you might want to think of a new shape. Mini-barebones kits feature a cube case instead of the standard tower case. It's square shape makes it perfect for the space conscious. However, before buying make sure whatever you add will fit inside the case. Plus, be wary of adding too much. It's smaller shape might ‘cause your overcrowded system to overheat.
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Hard Drive: The Hard Facts
The hard drive is the essence of any computer. Sorta like the TV is to a den. In tech terms, the hard drive refers to the primary component of a computer that stores all permanent data and system programs. It is called the “Hard Drive” or “Hard Disk” because it is made up of one or more hard disks sealed inside an airtight casing. Hard drives are primarily positioned inside the computer. However, you can purchase external hard drives like the Fantom Premier 80GB USB 2.0 External Hard Drives for extra data storage space.
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Latency
Latency is a feature of flat panel monitors. This occurs when there is a lag in the rate at which the LCD screen refreshes itself. Latency is more of a concern to computer graphics designers, gamers, and people who like to watch full length DVDs on their computer. An example of latency would be to hear the scene in the movie change before you actually see the characters actually appear on the screen. It is best to select a LCD monitor with a latency of eight milliseconds or less.
