2008-10-19

the knowledge of laptop


the knowledge of laptop (一):

Laptop computers are great portable offices, and as technology increases and speeds of

computers increase, we are seeing battery life also increase and provide longer usage time with

out the need to be "plugged in". They are more fragile than desktop computers, so they tend to

have a much shorter operational lifespan. Why a much shorter operational lifespan? Because

you'll be carrying it around with you from room to room or even country to country so the poor

thing is bound to have a few accidents along the way.

Laptop computers generally have two main parts, a display screen housing hinged to a keyboard

housing and come in all different weights, sizes, and speeds. They take up less space on the

desktop and can easily be moved aside to make room for other endeavors.


Laptops are purchased for personal use, business use, or both and have built-in keyboards with

a touchpad or a pointing stick for input and ease of use. Usually they run on a single main battery

or from an external AC/DC adapter that charges the battery whilst also supplying power to the

computer itself even in the event of a power failure. Inside are components which are similar to

their desktop counterparts and perform the same functions, but are miniaturized and optimized

for mobile use and efficient power consumption, although typically less powerful for the same

price.

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