Notebook Pcs [notebook computer software] Notebook shopping can be rewarding provided you are literate about the various features that various manufacturers offer. Popularity of notebook has soared more because of its portability without any compromise on performance. Since buying a notebook can be once in few years affair you need to be clear about its use. Following is a condensed notebook buying guide dealing with just the main factors you need to keep in mind before purchasing one. Buy by features-the core components The need of the hour today is to carry work and information and instant access to internet to present information for sales and clinch business deals. So obviously the size and weight of the notebook you carry around matters a lot. Notebooks are categorized both on basis of weight and on basis of screen size. Size The four basic sizes are: 1.Tablet PCs have all the normal functions. There is the added advantage of being able to physically write and manipulate applications with a specially designed input device- the Pen. The two types are the slate and the convertible. Example: Lenovo ThinkPad X41 2526, Lenovo ThinkPad X41 (S5519073) PC Notebook . 2.Ultra portable notebooks are extremely light with small keyboards and screen. There is however no compromise on emailing and web surfing capabilities and can connect to cellular broad band wireless providers. The CD/DVD drives are removed to save space. Lenovo ThinkPad X60 Ultraportable[notebook computer software] 3.Thin and light notebooks weigh five to seven pounds. The swappable media bays make it possible to switch between CD/DVD and spare battery. You will have to recharge often else carry the power adapters too. Lenovo ThinkPad X60s (X60s_Standard_Ultralight)_BT...) PC Notebook 4.Desktop replacements are powerful notebooks, only that you won’t be able to carry it around much. Available with powerful processors, adequate memory, plenty of drive space and wireless connectivity. The negative factor associated being comparatively lesser battery life due to power draining screens and the powerful components. Weight This feature is crucial since the notebook is intended to be carried around. A frequent flier would prefer lighter systems with some compromise on its functionality. While a home user wouldn’t mind slightly heavier systems. The travel weight specified must include the weight of power adapters and media bays but most manufacturers mention just the weight of the system and its batteries. Check out the models in the following three ranges: 0.6 to 4 lb. Most ultra portables come in this range.<>br 4.1 to 5.7 lb. Thin and light models with reasonably good battery life. 5.8 to 10.1 lb. Desktop replacements weigh around 7 lbs. Display size Notebook displays come in thin film transistor Liquid Crystal Display (LCD) models, perfectly flat and just half an inch thick, as they are easily portable. Specifications state TFT Active Matrix Display or LCD Display. If you are a frequent traveler, a good combination of small size and less weight will be easier for you to carry around. In case you wish to view movies bigger displays will well serve the purpose. Check out the three commonly available sizes. 8.9 to 11.1 inches- most of them have smart designs and good battery life, but reduced video quality limits its uses 12 to 14 inches- good for watching movies and for gaming 14.1 to 17 inches- for gorgeous display and powerful performance, so, ideal for business presentations[notebook computer software] Display resolution Displays have another criterion which needs scrutiny before purchase. It is the display resolution- higher the resolution cleaner and crisper will be the image. Resolution is number of pixels across the width and height of screen. 1024 x 768 means 1024 pixels across the height and 768 pixels across the width. Pixels mean the individual dots that make up the picture. In specifications the standard screen and widescreen is specified with abbreviations as XGA, SXGA, WXGA, WSXGA or WUXGA. The widescreen are fast becoming the rage because the reading space increases more with slight increase in size. 1024 x 768 Small displays 12.1 in. usually have this resolution XGA (1024 x 768), WXGA resolutions (1280 x 800). Larger screens too come with so low resolutions and they are cheap and ideal for budget computers. 1400 x 1050 Many large displays 12.1 and 15 inches come with this resolution like SXGA+ (1400 by 1050) and give very good picture quality. 1920 x 1200 Models with such resolution WUXGA (1920 x 1200) is ideal for making movies as there is more detail in the image and more work space on the display. However a negative factor associated with such high resolution is that the fonts tend to be smaller, difficult to read especially for people with poor eyesight. This factor is corrected by changing the font size in operating system but the correction can have unintended effects on other programs. Display screens The screen is of two types Glossy and Matte. Glossy screens have the advantage of reduced screen door effect i.e. reduced black spaces between pixels, thus improving the contrast and brightness of the image. The disadvantage is the reflective ness causing eye strain. Matte screens don’t have this feature and are a lot cheaper than glossy ones. The brightness of LCD screen can be adjusted and a lower setting can help conserve power. The brightness is adjusted by adjusting the intensity of the back light inside the panel that illuminates the screen. Processors This is the most important feature of notebook. There are types of processors and subtypes of processors. Sub-types being ultra low voltage, low voltage, and normal chips of say Pentium M or Intel Core Solo. Low voltage processors give good battery life. So depending on the ultimate application you intend to use the specifications will vary. Since notebooks cannot be easily upgraded (any upgrade of CPU would require dismantling the system to the core and replacement of motherboard, RAM, and may be add another heat sink.) it will be worth the money if you spend enough for fast processors to satisfy your current and future requirements. No single processor can fit all needs and functions, it may be ideal for single function but not for all tasks. Processor brands Two of the leading companies manufacturing processors used in notebooks are AMD and Intel. The processor market is entirely in the grip of these two companies. The clock speed of single core versions of the processors produced has touched the upper limit. These single core processors develop heating problems when multiple functions are carried out. Both Intel and AMD have developed the dual core technology in its processors that has increased the multitasking capabilities of notebook PCs. Intel uses the SpeedStep technology which senses and reduces frequency and power consumption if power is drawn from battery and increases the same if power is drawn from external source. AMD features PowerNow for the same purpose. AMD Intel Knowledge of the processor type will be handy to install the correct packages. Some processor types in notebooks are: AMD processors Intel processors are Celeron M Article Directory: http://www.articlecube.com For Notebook Reviews you can visit: | |
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วันพุธที่ 19 ธันวาคม พ.ศ. 2550
Notebook Pcs
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