Posted by best buy on Mar 26, 2012 in
Tips and Technic
A laptop, also called a notebook, is a small mobile computer. Depending on the size, material used for manufacturing it and other factors, its weight ranges from 1 to 8 kilograms (i.e. 2 to 18 pounds).
The source of power is usually a single main battery, or an external AC/DC adapter is used. Apart from supplying power to the laptop, it also charges the battery. To avoid havoc in case of power failure, a 3 Volt cell is provided to run the clock and other vital system processes.
Tablet Netbook
Though laptops are equally capable and powerful as desktop computers, they are much more expensive than similar capability and configuration desktop computer. Size is the unique property of a laptop. The components used in both, laptops and desktops are the same in terms of the functions they perform, but the components in laptops are miniaturized and made to support efficient power consumption.
LCD (Liquid Crystal Display) is usually the technology used for the display screen. They have a built-in keyboard and a touchpad as input devices. Provision is also made for connection of external mouse, and even keyboard.
Apart from the advantages like compactness and mobility, a set of disadvantages has also been associated with laptops.
A huge amount of discrepancy is observed when it comes to standardization issues of laptops. There exist worldwide standards for form factors of the peripherals and add-in PC cards used in a desktop computer. But no such standards are as yet enforced for form factors of laptop internals. Electric voltage, motherboard layouts, internal adapters used in connecting the hard disk, optical drive, LCD cable, keyboard and floppy drive to the main board, all still face issues with standardization. These hits hard on the poor user who is uneducated in this relevant field. Apart from them, a bit of difficulty may also be faced by the repair technicians. Familiarization of different parts and hardware that perform the same function is important.
As an outcome of the improper, or all most no standardization, the laptops suffer compatibility problems too. Most of the times, it is not possible to use one manufacturer`s components in the laptop produced by another manufacturer. The reasons behind this can be assurance of product stability, prolong product lifetime, and to avoid dubious warranty issues. Some manufacturers provide the laptops with a set of ports to let the user connect the hardware that he wants to use.
Upgradation of a laptop is another issue. Due to both technical and economic reasons, it is limited. Due to the proprietary designs of the laptops by each manufacture, it is difficult to upgrade them and most of the times even repairing is a costly affair. The standard peripherals, like audio, video, USB, 1394, Wi Fi, Bluetooth, are integrated in the motherboard. Upgrading these thus requires either of external ports, card slots or wireless peripherals. As far as the memory units and batteries are concerned, they can generally be upgraded according to the user`s needs.
Performance is another issue. RAM is shared between program memory and graphic adapters in laptops. Because of which performance of the laptop is affected. The major concern of the designer is compactness and energy efficiency against high performance. Generally, for the home requirement, laptops prove out to be good options for fast achievement of required performance. With new technology like dual core processors and perpendicular recording, laptops` performance is already showing a progressive graph when compared to the desktops.
Laptops can also pose health hazards. Temperature generated by laptop can affect sterility in men. Also, laptop keyboard can lead to RSI (Repetitive Strain Injury). Thus it is advised to place the laptop on a table or desk when working.
The Pros And Cons Of A Laptop
Tags: Laptop
Posted by best buy on Mar 23, 2012 in
Tips and Technic
The sudden unexpected shutdown of an operating laptop computer has three common causes among others.
The power-supply transformer or adaptor is going bad, causing the power supply itself to shutdown
A cooling fan has quit working, causing the laptop to thermally shutdown
Lint has collected on the cooling-fan screen guards or in the cooling ducts, causing the laptop to thermally shutdown from lack of adequate air flow
Tablet Netbook
The first two causes and fixes.
The first cause does not happen often. But, to check it or to fix it quickly, a spare power adaptor will do both. The spare will also eliminate this possibly if these shutdowns keep occurring while it is connected. That leaves the two other causes.
The second cause has a greater potential of happening, but not very often. One can lift the front side of the laptop to see if the cooling fan (usually on the bottom side if the laptop) is rotating all right. Many laptops have two fans. If these fans are rotating all right, that leaves only one other common cause. If not, then the nonfunctioning fan(s) must be replaced. This replacement can be self-done, but it requires disassembly of the computer. This disassembly is not easy because the laptop has several ports and accessories tightly fitted into its chassis. A repair shop can do it much easier.
The third and most common cause and fix.
The third cause (collected lint) is the most likely reason for the laptop shutdown. For one thing, the bottom-side cooling fans are close to the surface on which the laptop sits. There, the fans can suck up surface dust easily. This dust collects on the fan screen guards as lint, which prevents adequate air flow through the cooling air ducts. This lint also collects in the ducts themselves, but in smaller amounts.
To describe these ducts further, they pass over the metal heat-transfer sinks surrounding the central processor, which, in turn, allow the air flow to keep the processor at a safe preset temperature. If that temperature is exceeded, the laptop shuts down quickly to protect the processor. These air ducts usually vent from the back or from one side of the chassis.
The easiest and best two-step recommended way to fix this problem most of the time is simply
to remove any lint collected on the fan guards
to blow out the cooling ducts and fan boxes with a small canister of compressed air, starting at either end.
Some of the blown lint might collect on the insides of the fan guards, having been blown toward the fans from the duct vents. Yet many of these screen or mesh-like fan guards can be dislodged or popped from the chassis to remove this lint, and then wedged back into place when the cleaning is done.
This cleaning method is not new, but it works well here because only small amounts of duct lint will cause this shutdown problem. Once all the lint is removed, the laptop will work and sound much better for several months.
A canister of compressed air can be purchased at several outlets (camera, computer, electronics, and hardware). This problem can be further prevented by blowing out the fan and air ducts on a regular basis before the lint collects again. For more information on this and similar overheating problems, see these sites.
How to Fix and Prevent Sudden Thermal Shutdowns of Laptop Computers
Tags: Computers, Laptop, Laptop Shutdowns, Laptop Sudden, Prevent, Shutdowns, Sudden, Thermal
Posted by best buy on Mar 19, 2012 in
Tips and Technic
Are you looking for an effective way, or ways, to speed up laptop? After prolonged use even a desktop computer wears out, then how can you think of your notebook running on an accurate speed?
Most of the time, users believe that there is no other way except buying a new one. But wait, we have some invaluable tips on how you can speed up laptop and improve its working.
Tablet Netbook
6 steps plan to speed up laptop
Registry Cleaning: Registry is one of the most important parts of Windows operations and its corruption or disfigurement may lead to fatal errors. When we add or remove new programs, or even download new software or add-on to our browsers, some errors and malwares creep up to the registry, and defile its functions. Corrupt registry slows down the overall functioning of a computer. It is best to keep it clean all the time so that you can download a highly efficient registry cleaner on system, and run it periodically.
De-fragmentation: De-fragmentation is a simple process, where all the information and data stored on your system gets streamlined, in an appropriate order. This saves you a lot of time and lets you have an easy access to information, at any point of time. What exactly happens is that when we store some data on the hard drive of a computer, it gets placed anywhere on the system. This consumes time in processing and slows down the speed. Now, defrag helps in moving all the information around the hard drive and organize them. This in turn helps in reducing the processing time of information gathering, and speed up laptop. You need to defrag your computer regularly.
Erase temporary Internet Files: Whenever you open a file on your system or on web, a temporary imprint of it gets stored on your system. Though these files are temporary, they get retained for a longer time, which ultimately results in slowing down the working process of your notebook. It is better that you keep deleting these temporary files from time to time.
Hard Drive: If you clog up hard drive with unusual and unwanted programs including entertainment file, pictures, movies, music, games, and flash files, then certainly the processing speed will be nullified. This is why you need to free some space on your hard drive by removing these files.
Removal of Adwares, Spywares, and Viruses: Keep your malware protection updated and scan your system on regular basis.
Empty recycle bin regularly
How Do I Make My Laptop Run Faster – Follow These 6 Simple Ways to Speed Up a Laptop
Tags: Faster, Follow, Follow Faster, Laptop, Laptop Faster, Simple
Posted by best buy on Mar 10, 2012 in
Tips and Technic
With the reduction of laptop prices, laptops are quickly overtaking desktops to become the best-selling computers in the market. Reasonable prices, portability and sleek designs have propelled laptops to the forefront of personal computing. When the first laptop was produced, there were only a handful of companies that manufactured them. Today, there are hundreds of laptop models in the market, making choosing the right laptop a daunting task. Here is a quick guide to help you choose the perfect laptop for your needs.
Consumers make their laptop purchases based on a variety of factors including brand, size, design, color, and specs. Depending on your preference, certain factors may prove to be more persuasive in choosing a laptop compared to others. Some are willing to buy a more expensive, and less powerful laptop for some novelty value. Others are willing to forgo design for function and practicality. As a general rule, it is always a good idea to choose a laptop based on what you plan to use it for.
Tablet Netbook
Choosing a laptop by brand is a good place to start. Although mostly similar in terms of quality and specifications, there are certain selling points that distinguish one brand from another. For starters, if you are into sleek and cool laptop designs and price isn’t a big factor, consider buying an Apple or Sony laptop. If you are looking to buy a laptop that offers great value for your money, Dell, Acer and HP laptops may prove to be a good choice. When it comes to durability and reliability, Japanese companies such as Toshiba and Fujitsu laptops are second to none.
Portability is also a driving factor for consumers to buy a laptop. With the exception of netbooks, the more portable the laptop is, the more expensive it is going to be. If you are constantly traveling for work and often use your laptop for word processing and heavy administrative functions, it is bust to get high-performance slim laptop, such as the MacBook Air and the Toshiba Protégé A605-P201. If you mostly only use your laptop to surf the net, then a netbook such as the Asus Eee netbook series may be just right for you. If you seldom travel or bring your laptop with you when you travel, then it may be wise to invest in a basic, standard sized laptop (14 – 15 inch).
If you plan to use your laptop for graphic designs or gaming, it is best to invest in a laptop that has the latest and highest specs. Laptops with average specs are often insufficient if you plan to run several heavy-duty programs and may produce choppy graphics. The laptop should contain the latest and most powerful graphic cards, processors and display. Apple laptops are popular among graphic designers while Asus laptops are a favorite amongst gamers. If you plan to use your laptop often for media playback, make sure that the laptops you are buying have good built-in speakers. You will be surprised at the difference in audio quality of the speakers in different laptop models.
The Best Laptops in the Market – Choose the Right Laptop For You
Tags: Choose, Laptop, Laptop Market, Laptops, Laptops Market, Market