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Guide to Buying a Laptop Computer
With the many different brands and models on the market, buying a laptop or notebook computer may at first seem confusing. But simply breaking down the process into a few key areas and using Myshopping.com.au to search for the most suitable features and pricing makes it much easier to access exactly the machine you're looking for.How important to you is mobility?
Mobility in laptop computers is a combination of size, weight and battery life: how often you carry it around, and if you will be relying mainly on the notebook's battery, or whether you will access an external power source. Laptops can weigh from a little over 1 kg up to 6kg, depending on the model and features included. The screen, storage space and disc drive all affect the weight.
Battery life is shortened by bigger screens and multiple disc drives. Manufacturers advertise the weight of the laptop in their specifications, but it is important to consider whether that specification includes batteries and other peripherals such as external drives that you may be lugging around. The most common battery type is Lithium Ion (Li-Ion), which can operate for one to three hours under normal working conditions. But many power saving options available and higher celled batteries can extend the discharge time considerably. Battery life deteriorates over time however, and as your laptop ages; the discharge rate of the battery will diminish. Sometimes it is worthwhile carrying an additional battery.
Application and cost
If mobility is of a lesser concern, then battery life and weight will be less important. You may be more inclined to have a bigger processor, screen size and memory capacity. The type of work you do can affect the screen size and type that is most suitable for you. For a lighter load, and less graphics intensive applications a 12-14in screen instead of 15 or 17in widescreen will be more suitable. If, on the other hand, the graphics capabilities and size of the screen are important then the best screen you can afford will be more of a priority. It may work out cheaper to buy a basic unit and add such things as an external TV card and DVD burner when the need arises.
How much you need to spend is closely related to how you use your laptop. If you only want to access your e-mail, browse the Web and do word processing, then you can consider lower budget machines with smaller processors, screens and facilities.
A medium-level user, perhaps playing games or working in multimedia applications, will need a powerful processor, graphics controller, storage space, and a bigger screen. The more features your laptop has, the more expensive it will be. Including a DVD-burner instead of DVD-ROM, hard drive capacity of more than 40GB, a 17in widescreen screen and wireless capabilities results in a more expensive machine.
If you are not looking for high power and graphics capabilities, then you may find a suitable laptop for around $1500. The latest processor, full blown graphics capability, DVD burner, widescreen and wireless connectivity may cost over $4000. Use Myshopping.com.au to search with different price ranges.
Other key components
Having determined by what you will do with it, and how mobile you need to be that you are definitely buying a laptop, you now need to get down to the nitty gritty and find the specifications that will meet your needs. So, what to look for? Essentially, you are considering differences between the following components: display, graphics controller, memory (RAM), hard disk, removable storage, networking options, peripheral connectivity, sound and battery.
Display and Graphics
Notebooks now all feature LCD screens (Liquid Crystal Displays) presenting crisp text and reduced eyestrain. These screens display sharper text than standard CRT monitors, but are less capable of displaying well-rendered graphics. If you will be using your notebook for graphics work, it may be worthwhile having a CRT monitor to connect to. Screen sizes for notebooks range from 12.1in to 17in (widescreen). A 15in display or 15.4in widescreen alternative is the most common in notebooks today. Widescreen is quickly becoming more common, partly to accommodate playback of DVDs and also because widescreen proportions make it is more durable.
On-screen graphics are affected by both the size and type of screen as well as the graphics card. It is reasonably safe to assume that larger displays offer higher on-screen resolution. Screen brightness (measured in nits) is another specification that can vary between makes and models. Brighter screens impact less on eyes and can be more easily read in bright conditions. Some manufacturers have a glossy, reflective coating over the display improving contrast and colours. But, because it increases the reflectivity of the screen, it can show you reflected in the screen. Surface scratches may also show up more readily. Not all LCD screens have the same viewable angle, with some screens not easily viewed from a side angle.
Graphics performance in laptops is still inferior to that of desktop machines. All graphic controllers easily render 2-D images and if you don't need more from your graphics, then an integrated graphics controller is ample. However, if you want to play the latest 3-D games at a decent resolution and frame rate or you're a CAD designer, then you'll need a discreet graphics controller with a dedicated DDR video memory.
Memory and Storage
In all computers RAM chips keep the CPU efficiently fed with data or instructions from programs on the hard drive. Notebook computers now commonly use DDR SDRAM (Double Date Rate SDRAM), the default standard, and DDR2 SDRAM which is a next-generation memory type offering considerable performance and power benefits over SDRAM. Either way, when it comes to RAM, more memory is better and you should consider 256MB as the absolute minimum. Upgrading memory can achieve better performance, and quite a number of vendors offer higher RAM configurations as a 'deal sweetener' at the time of purchase. Search through Myshopping.com.au for bundled extras such as more RAM.
The hard drive provides the long-term storage and is the centre of program control. There are two critical specifications of hard disks. One is disk speed, measured in revolutions per minute (rpm). Faster disks speeds provide quicker access for loading and saving and 'file swapping'. The other is storage capacity, and drives are now available for notebook computers with 120GB capacity. If you work with large file sizes, then you will probably want at least 40GB of hard drive space. You may also want to consider the type of removable storage such as a DVD writer, removable hard disks and media or 'flash' card systems that will suit your use best.
Networking and connectivity
Laptop computers now include 56Kbps modem (RJ-11) and 10/100 Ethernet (RJ-45) connections as standard features. Some feature an Infrared port and you can use it to connect your mobile phone. Other wireless technology for connecting mobile phones, printers and PDA devices includes Bluetooth and Wi-Fi, allowing connection at certified public access points and home wireless networking. Most laptops use USB 2.0 or FireWire connection for connecting keyboard, mouse, printers, cameras and other peripherals. Nearly every new notebook will have around three USB 2.0 ports, and one FireWire port and a VGA-out port to connect an external monitor to.
Notebook computers have traditionally been able to expand their capability through simple plug-in PC Cards. Recently a new standard has emerged called ExpressCard, a smaller, faster and more portable plug-in card to provide such things as expanded video and sound capacity.
Choosing a laptop becomes much easier once you've decided on these basic requirements. You can search Myshopping.com.au to compare makes, models, prices, accessories and all the important specifications. You can also compare vendors and their prices and service.
Guide to Buying a New printer
One of the more perplexing decisions when faced with choosing a new printer is which print technology is going to suit you best. At the moment there are two main printing systems: the laser technology, using toner cartridges and a transfer drum assembly; and ink jets using ink tank cartridges and fine-spray nozzles. The method that will suit you best will depend largely on what you plan to print on your new printer, and cost factors that affect the costs of running it. Laser printers are possibly better for high-volume printing, with lower 'per page' costs and they better black intensity text than most ink jets. Laser printers tend to have a faster page rate but ink jets still offer the important advantages in affordable colour printing.For home use, you'll probably want to print out digital photos or graphics, which makes colour a must. The traditional differentiation between lasers and ink jets has been office versus home use; however, colour offers obvious presentation advantages for business use as well. Fortunately, prices for both categories of printers have come down enough to make it practical to purchase both a laser and an ink jet if you absolutely need both colour and high-quality text.
The work you do
There are a number of different printer configurations available today, many of them quite specialised in the applications. There are specialised photo printers, direct disc CD printers, Multifunction printers, desktop ink jets and high-speed lasers.
If you want a printer that is specifically designed for printing photographs, you will most likely look for a colour ink-jet system that is a photo printer, allowing very high quality colour output and capable of printing all the way to the edge of the page. Recent releases by major brands now include all-in-one Multifunction devices that include scanning and printing capabilities. Many smaller units that are designed purely as a photo-printer to plug directly into your digital camera are also available. Much the same can be said for CD or DVD printing, with specialist printers available for printing directly onto discs, saving label application.
On the other hand if you are a small home-office worker, then your requirements may be more general, in which case you need to make a printer decision based on the types of documents your produce and how many. In general terms, ink-jet printers offer high quality colour outputs at a low hardware cost, but high consumable cost. Lasers offer significantly higher speeds but at a much higher hardware cost. High volume usage however, reduces the cost per page considerably.
Multifunction printers (MFP) are often ideal for home office or student needs because they combine multiple functions into one unit, usually a scanner, printer, copier fax machine, doing a little bit of everything, and saving considerable desk and office space in the bargain. Generally ink-jet style printers, some MFP may trade-off performance for price and convenience ( e.g. lower resolution, slower print speed) than if you were to buy a printer and scanner individually.
You can buy Multifunction printers specially configured for printing photographs, with some machines providing the ability to scan directly from 35mm slides and store digital files and print them, which is ideal for archiving old photo libraries. However, the scanned images may not exhibit the same clarity and brightness of digitally capture photographs, or as the kind of quality that you can obtain from a deidcated scanner. Search Myshopping.com.au for the specifications you require and compare prices and performance between brands and technologies.
Dealing with Technical Talk
One of the specifications that you will be faced with, is that of resolution. Up to a point, a printer's resolution determines aspects of its print quality. Images are made up of tiny dots of ink or toner that is applied to the page, and resolution is the term given to the number of dots per inch-quoted as dpi. This usually represented in a two-dimensional matrix (eg: 600 x 300 dpi). Most printers today support a basic 600 x 600 dpi resolution that produces adequate quality in most instances. Many ink jets, however, especially photo printers and high-end plotters, offer higher resolutions and more dots in the vertical plane than the horizontal.
Resolution ratings are not the whole story however. Many printer manufacturers now incorporate smoothing and enhancing features through software algorithms. This means that some output from printers with a lower dpi looks just as good as that from a higher dpi unit. And, although some printers have very high resolutions, you're not likely to notice any difference in quality with common print jobs once you go above 600 x 600 dpi resolution. What you will notice however, is much higher consumption of inks or toner. It is noteworthy, and perhaps obvious to some, that the higher resolution you are printing at, the higher will be your consumable consumption, and this is the most expensive part of your printer.
Speed is another important consideration. Vary rarely will you find that your printer performs at the 'pages-per-minute' rate (ppm) that is advertised or cited in the specification. There are a number of reasons for this including the size of the file being printed, the amount of ink coverage on the page, the proportion of black to other colours, the weight of the paper stock and possibly even the constancy of the power supply of electricity to your premises. This is not to day that the manufacturers, under laboratory conditions are not able to make the machine perform at spec, just not to rely on the claim as a gospel figure. However you can use the speed ratings to make some judgement of performance differences between brands and models. If speed is an important consideration, then you can short-list printers that claim to perform above a certain rate and the compare other factors. You can do this at Myshopping.com.au simply by searching for printers that offer a certain ppm speed.
Laser printers use powder toner that is electromagnetically attracted to the page by an image temporarily made on a transfer drum through a laser scanning process, and then fused to the page with a heat-setting system. This toner is supplied in cartridges, usually one for each of a four-colour printing system (cyan, magenta, yellow and black). Manufactures give some estimate of how many pages of a given size each toner cartridge will print, based on a predetermined proportion of coverage (say 10%). As with the speed claims, these estimates are rarely accurate, but can be used to make some judgement between makes and models. The higher resolution of image you are printing, the more toner will be used in the process. Ink jet printers use a liquid ink stored in tanks that are sprayed by very fine nozzles onto the page as they are required. Just as you replace the toner cartridges in the laser system, you replace ink tanks when they're depleted in an ink jet printer.
It is important to understand that even thought the printer might be cheap, consumables is where the manufacturers actually make enormous profits, so be sure to consider replacement consumables when doing your cost comparisons. With ink jet printers, some have colour cartridges in one unit, others have separate colour units. In the long run, separate tanks will most likely work out cheaper, because as one colour runs out, you replace only that colour. When all colours are housed in the one cartridge unit, you may have a nearly full tank of cyan when the yellow is completely gone, and you have to throw away unused ink. Not only does this waste your money, it can also be environmentally expensive.
Cost
There are two parts to your cost assessment of a printer. The first is the purchase price of the printer itself. This can vary considerably between brands and models, and is usually differentiated through different features being offered. Use Myshopping.com.au to search for a printer based on a given price range and compare the features. However, possibly more important is the ongoing cost, often measured in cost per page. A typical ink jet printer may cost you 40-50 cents per printed page, depending on how much ink you are using on the page, it may even cost more. By comparison, a colour laser may work out to 15-20 cents per page. These costs don't usually include the paper stock, and are based on consumables and maintenance costs. Companies like Xerox often supply large colour Laser printers for a cost per page fee.
One cost assessment technique is to estimate how much printing you will do in a given period, load your calculations with a percentage of ink coverage (if you are printing all full gloss and high resolution photographs, for example, you might load the cost per page by a factor of 8-10), factor in the machine cost and make a comparison of what you will spend in a year, including the cost of the printer.
Other things you might consider
How paper travels through a printer can affect your whole printer experience. The closest you can get to a 'straight through' paper path, the more trouble-free your printer will be. If all your printing is only on plain white bond paper, then paper path will possibly not be a major consideration. But if you're printing on photographic stock, thick paper, envelopes, transparent film or other materials, then be sure the print path is compatible with your requirements. How you connect to your computer might also be a consideration, especially if you work with large files where connection speed is a consideration. Most printers today offer relatively high-speed USB interfaces. But you might want to consider wireless connections or networking capabilities.
When choosing a Laser printer, on-board RAM (read only memory) might be a consideration. A printer with a standard 64 Megabytes of RAM will be slow to print a quantity of documents that are larger in size than the printer's memory. If large documents are a consideration, make sure you can upgrade the printer's memory. The printer driver provides the software interface to your printer, offering you on-screen control over copies, page size, orientation, resolution, text smoothing and paper thickness and type. Many drivers now include advanced features and enable you to create your own custom-setting profiles for quick selection. Moreover a good driver provides complete printer management from on-screen, including paper jams and job queue management. Ink-jet drivers often provide graphical indications of remaining ink levels for each colour.
Search using Myshopping.com.au
Consider any bundled software offerings when you're choosing a printer, for this can mean a significant bonus in value-added software. Bundled applications might include greeting card, poster, and banner creators, and photo editing programs. With computing becoming a major component of education, software for kids that provide a user-friendly way to create word processing and graphics documents can be a major bonus. Space may be an issue in your office, in which case you should consider the amount of space the printer will need to operate efficiently. This is often more than just its footprint. You need to also consider access to paper trays and airflow around the machine. While basic printer configurations may be fine for your immediate needs, take a look at the options available and their costs for each unit before you buy. You may see future applications. This is easy to do using Myshopping.com.au where you can simply compare types of technology, prices, vendors and the options each one offers.
How To Properly Install A New Motherboard
The motherboard is the most expensive computer component so be sure to treat and handle it with great care.There are a few things you should do to ensure no motherboard damage occur as you prepare for the installation.Be sure you have a clean,well lit,and level work place.Relax your mind and make this task both fun and educational.You will need such tools as a phillips screwdriver,maybe some needle nose pliers and the manual that came with the board.
Most importantly you must remove any and all electrical static discharge from your body and clothes.Static electricity is a big problem and will quickly damage chips on your new board.
PREPARING FOR THE INSTALLATION
Preparing to work on your system envolves work area,lighting, and much more.One great danger is the chance of electrical static charge.But this will be no problem when this static buildup is properly removes.
Remove this danger by grounding yourself.Touch the metal case of the system unit or better yet,touch a door nobt in your work area to remove all electrical static charge.
Set down and carefully read your user's manual and familiarize yourself with your new motherboard and its layout.Taking this time will boost your motherboard installation performance ike you never thought.
Study your new motherboard and keep the box it came in.Remove it from its protective wrap very carefully and without damaging the wrap.This is done just in case you need to return the motherboard.
You may need to return the motherboard if you made any mistakes in the purchase.Does the holes of your new motherboard line up with the holes in the case?If there are any reason to return the board,you can simply put it back in the box to return.
Make the installation of your new motherboard fun and prepare well.Go to www.ultimatepcrepair.com and click on the photos page to familiarize yourself with all of the components in the cmputer.Follow these procedures as a guildline to install your new motherboard.
REMOVING THE OLD MOTHERBOARD
First Turn on your computer and access your cmos setup. This is done as the computer counts its memory.Press the combination of keys to access your bios.once inside your bios,select "Standard CMOS Setup" and write down all information about your computer's drives.
Make sure you get the density of your floppy drives and the type of hard drive you have. Once you have this, turn off and unplug the computer and remove the case.
Second Study your system unit layout and you may want to take notes as your remove components and connections so that it will be easier when it comes to re-installing these components or connections.
Go about unplugging the wires that are connected to your old motherboard.Remember to label any and all connections to make re-installing them easier later.Here's where its very important to take awhile to study your old and new boards before disconnecting anything.
Third Carefully disconnect all drives and label the connectors if needed.Remove the drives and set them out of the way in a safe place.Place all small screws in a cup or something where them won't get lost.
Carefully grasp the motherboard and give it a gentle tug upwards to be sure on connections,screws,or other devices are not interferring with the board's removal.
Once you are certain there are no obstruction for the board to be removed,lift the board out of the system unit.Look to see if such components as the memory need to be installed onto the new motherboard.
INSTALLING THE NEW MOTHERBOARD
Installing the new motherboard is the reverse order of removing the old motherboard.Be sure you remove all electrical static discharge from you body and clothes.Inspect the new board for damage and to be certain it is the right motherboard for your computer.
Carefully align the new motherboard with the system unit case and secure the board.Be careful not to secure the screws too much.Install the CPU chip if it is not installed on the board from the manufacturer.
Connect the large power connector from the power supply the the motherboard connector.Take care in not forcing the connector which may bend a pin.
Install RAM Memory into their sockets and check to be sure they are puched in completely.Re-connect all other devices such as controllers,expansion cards and finally the drives.
Check the sound,and videos cards for proper installation. Did you install your internal modem,or scanner adapter card? Connect the leads to the On-Off switch as well the hard drive indicator.
After all connections and components are installed,stop and go back to check again,and then,check some more.Replace the system unit cover once you know all is well.
Your system should now be ready to go.The motherboard may come with a cdrom containing device drivers and other software utilities that may be required to be installed.
Now try turning on the computer and if the POST completed without a hitch,you're there.If you experience problems,go back and check all connections and devices.
Ita that easy to install or upgrade not only the motherboard,but nearly every other component in the system unit.Get busy understanding your computer now and save big on future PC repair costs.
How to buy the perfect PC
PCs have become a staple in every home. Without PCs, you will find it hard to stay connected and to even do the work required of you in school or in the office. With so much PC packages being shoved to our throat every time we go to department stores and computer shops, you’ll really get quite confused on what you really need and what PC package will fit your budget and lifestyle. To help you through this dilemma, here is a brief backgrounder of the parts of PCs that you should get to know.Processor.
This is one of the three primary components of your PC. The processor is the part that determines how fast your computer process information. Intel is still the leading brand in processors but competitors such as American Micro Devices (AMD) are slowly catching up, offering cheaper alternative. In shopping for a processor, one should consider the following:
Clock speed – this will show the number of instructions that a computer can execute in a second. This usually comes after the brand name. Processors nowadays are already set at the gigahertz range.
Cache memory – this stores the data that were previously accessed. This simplifies the work of the computer as it would not take twice as long to access information already stored in memory bank. Without a cache memory, much of the work will fall on the RAM (Random Access Memory).
Operating temperature – some processors easily heats up. Before buying, make sure that you have asked about the operating temperature just in case you need to buy additional fans or put the computer in an air-conditioned room.
RAM (Random Access Memory).
RAM serves as the temporary memory of the PC, containing information that are needed for the computer and the programs to function. In addition to processors, RAM also determines the speed of the computer. The higher the RAM, the faster the computer is in accessing information and responding to commands.
Motherboard
This is where all the parts of the PC’s CPU (Central Processing Unit) are attached. Some motherboards already have videocards and soundcards embedded on it while others don’t. what is important however is to choose a motherboard that is compatible with your RAM and processor. Incompatibility of PC hardware can cause major problems and may even lead to the breakdown of your computer.
Hard drive.
This is the part where you store all the information in your PC. Picture a floppy disk with much much larger storing capacity. The hard drive serves as the permanent memory of your computer. Here you install all your programs and save all the documents that you need. It is also important that you buy a hard drive with really big capacity especially now when people are so used to storing multimedia files that may use up a lot of hard drive space.
Video cards
This is the part of the computer which determines the quality of the multimedia images that you will view. The higher the memory of the video card, the better is the picture quality and the colors. Also, video cards are also responsible for how fast multimedia images are accessed. This is especially needed if you use your computer for multimedia activities such as watching a movie or playing video games.