Cheap Laptops: compare prices on different laptops online

Laptop computer is a portable computer that has a flat LCD screen and usually weighs less than eight pounds. Often called just a "laptop," it uses batteries for mobile use and AC power for charging the batteries and desktop use. Today's high-end laptops provide all the capabilities of most desktop computers.

The skyrocketing popularity of laptop computers is not a secret today. They're completely portable, and they use less power and make less noise than desktop models. Now they're quick enough and have good graphics and sound processing power.

A laptop, however, is much smaller and lighter than even the most compact PC tower. Its screen is an integrated part of the unit, as is its keyboard. Instead of a spacious case with lots of room for air circulation, a laptop uses a small, flat design in which all the pieces fit together snugly.

Today, laptops use high-quality active matrix LCD screens. However, the built-in display system also feeds an external monitor for desktop use or a data projector. Unlike a desktop computer, you cannot replace the display adapter, so be sure that the laptop has the highest resolution you require for the external display.

All laptops today have built-in speakers and generally include an optical drive (CD-RW, DVD-ROM or DVD-RW). DVD drives typically support all CD read and write modes as well. A removable drive offers more flexibility for upgrading later.

Laptops usually run on a single main battery or from an external AC/DC adapter which can charge the battery while also supplying power to the computer itself. Many computers also have a 3volt cell to run the clock and other processes in the event of a power failure.