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Even More Enjoy With Your Laptop
A laptop is a personal computer designed for mobile use and small and light enough to sit on a person's lap while in use.A laptop integrates most of the typical components of a desktop computer, including a display, a keyboard, a pointing device (a touchpad, also known as a trackpad, and/or a pointing stick), speakers, and often including a battery, into a single small and light unit.
The rechargeable battery (if present) is charged from an AC adapter and typically stores enough energy to run the laptop for two to three hours in its initial state, depending on the configuration and power management of the computer.
1.Laptop Processors: The microprocessor, or CPU, works with the operating system to control the computer. It essentially acts as the computer's brain. The CPU produces a lot of heat, so a desktop computer uses circulating air, a fan and a heat sink -- a system of plates, channels and radiator fins used to draw heat off of the processor -- to cool off. Since a laptop has far less room for each of these cooling methods, its CPU usually:i)Runs at a lower voltage and clock speedii)Mounts to the motherboard without using pinsiii)Has a sleep or slow-down mode. Replacement for Compaq Presario CQ56-206SA Laptop Motherboard http://www.nbpartlist.com/compaq-presario-cq56-206sa-laptop-motherboard-iyuy.html
2.Laptop Memory and Storage: A laptop's memory can make up for some of the reduced performance that comes from a slower processor. Some laptops have cache memory on or very near the CPU, allowing it to access data more quickly. Some also have larger busses, allowing data to move between the processor, motherboard and memory more quickly.Lapto ps often use smaller memory modules to save space. Memory types used in laptops include:
i)Small Outline Dual Inline Memory Module (SODIMM)ii)Dual Data Rate Synchronous RAM (DDR SDRAM)iii)Single data rate Synchronous RAM (SDRAM)iv)Proprietary memorymodules3.Laptop Screen, Graphics and Sound:Replacement for DELL 31RM5MB0080 Laptop Motherboard http://www.nbpartlist.com/dell-31rm5mb0080-laptop-motherboard-iyuy.html
A graphics processing unit (GPU) is a microprocessor that handles the calculations necessary for 3-D graphics rendering. Like a CPU, a GPU produces a lot of heat. Most laptops have graphics capability built into the motherboard or have smaller graphics cards with a GPU designed specifically for laptop use. GPU manufacturers ATI and nVidia both make GPUs specifically for laptops. Laptops frequently share memory between the CPU and the GPU, saving space and reducing power consumption.A laptop displays its graphics on a liquid crystal display (LCD) screen. Most screens measure between 12 and 17 inches, and the size of the screen affects the overall size of the laptop.
3.Laptop Batteries: Laptops and desktops both run on electricity. Both have small batteries to maintain the real-time clock and, in some cases, CMOS RAM. However, unlike a desktop computer, a laptop is portable and can run on batteries alone.
4.Whitebooks: A modded or homemade laptop is called a whitebook. Whitebooks represent about 5 percent of the notebook market right now, and this number is slowly rising. The industry has done a pretty good job of keeping end users out of laptops. They've made it difficult to open, modify and get parts for a laptop. In addition, opening the laptop chassis voids the manufacturer's warranty in most cases.
5.Guard Your Laptop: Always take care when connecting to an open wireless network. Install a robust firewall, like Zone Alarm, and make sure that you set its security settings high to get the best protection. Folder sharing on an open network is just asking for trouble, so make sure you turn this setting and others like it off. Replacement for DELL XPS 1645 Series Laptop Motherboard http://www.nbpartlist.com/dell-xps-1645-series-laptop-motherboard-iyuy.html
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