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Comment: This article is a little outdated now but the last piece of advice still stands.*

Despite various technology increases and changes, choosing the perfect laptop isn’t as hard as it was a few years ago. Laptops today come in various classes for different types of users. An up-and-coming businessman or woman will be looking for laptop characteristics that are wildly different from the needs of graphic artist or gamer. There are models out there for everyone. 
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The Key Components

Battery
The battery is easily the most important item in a laptop. It is, after all, the part that makes it truly portable. Nothing is worse than being almost finished a Hollywood blockbuster or a crucial work assignment and having to stop because the battery conked out. Pay special attention to the number of working hours you can get out of the battery while away from a wall socket. Typically 3 working hours is the standard.

Processor
Think of this as the brain of your computer. It handles all the calculations and instructions received from software and hardware. The term CPU is short for Central Processing Unit. Choosing a processor with a higher speed is generally in your best interest however be aware that companies use various naming strategies to confuse consumers. Do some research into the various processor types before you go shopping. The newest models of laptops feature dual core processors that allow for easy multitasking, improved performance and enhanced battery usage.

Hard Drive
This is the long-term memory bank of your computer. It stores your programs, files and all those iTunes songs. Just remember to back up your most important files as hard drives can sometimes be very unstable. Generally, you want a hard drive with at least 30 GB of space.

RAM
Random Access Memory is just as important as your processor. If we think of the processor as the brain and the hard drive as the long-term memory, then RAM is the short term or “working” memory. It is responsible for loading, displaying and manipulating applications and data. The higher the RAM, the faster your computer will boot up, access software and run multiple programs.

Graphics Card
Most laptops have integrated graphic cards that are fine for typical uses. However, if you are a hardcore gamer or graphic designer than you might be interested in getting a laptop with a more powerful card.

Drives
It is hard to recommend anything but a DVD writing drive on all the newest laptops. Don’t get suckered into getting one with only a CD writing drive. A DVD-RW drive allows you to do everything the CD-RW does with the added benefit of being able to watch movies and burn DVDs. Depending on your needs, other drives may be necessary and can included as USB add-ons.

Multimedia Connectors
USB ports allow you to add on all sorts of components, gadgets and music players. Having more USB ports allows your computer to accommodate your changing needs. However, if you don’t see yourself using a lot of external gadgets don’t let this be a determining factor for a choosing a particular model. You will also want to make sure your laptop is wireless internet ready.

Display
There are really only two types of displays available: widescreen and 4:3. This is mainly a matter of personal taste. Widescreen (which is the most common for the newest models) is great for gaming and watching movies. The standard screen size might be better for those looking for a very portable computer.
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Laptop Styles

Ultraportable
These are the tiniest laptops available, typically under 4 pounds. They sacrifice power and features for mobility and low weight. Perfect for those who are always on the go. These notebooks have displays around the 12 to 13 inch mark and are as thin as a spiral bound notebook. The best examples of Ultraportables are the Sony Vaio TX series and Lenovo Thinkpads.

Desktop Replacement
These laptops are good for moving from room to room but extended travel with them might get a bit tiring. They offer much larger displays and a greater multimedia experience. They are combine great performance, price and portability. Toshiba offers a decent line of laptops in this category.

Budget
Budget laptops are for the entry-level computer user. The prices are extremely friendly ranging from $500 to $1000. These computers get the basic jobs done but lack the extra frills. However, if you are only using it for the office suite and surfing the web than these laptops are more than serviceable. The weights of budget laptops can vary widely. If you are seriously considering a budget laptop, check to make sure the battery life is up to snuff. Dell and HP offer a great selection of laptops in this price range.

Multimedia Machine
If gaming or video editing is your desire, getting a little laptop is out of the question. You need a portable studio rather than a “notebook.” These laptops offer high performance and function but at the cost of portability and weight. They can easily weigh close to 7 pounds! The prices margins for these laptops are a lot higher but if you need to game or create then it’s worth it. Check out Alienware computers for laptops that have some extra juice.

Thin-and-Light
These laptops are more portable than either desktop replacements or multimedia machines, but aren’t as tiny as ultraportables. They weigh in around 4 to 6 pounds. These laptops seem to be designed with students in mind and offer a well-rounded set of features with decent computing power. The Apple Macbook is a prime example of the best this class has to offer.
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get computer literate!
If talking about Intel Core Duo or AMD Turino processors intimidates you, start your computer search by writing down the programs you wish to use on your laptop and the situations in which you wish to use it. This will help you figure out the specifications and technology your computer requires while narrowing down model possibilities.